Monolithic area between overlap plates. Device of monolithic sections in overlaps If the monolithic portion remains less than 300 mm

Any building, regardless of the floor, has overlaps. They can be wooden or concrete. The most reliable is the monolithic slab overlap. Consider its advantages and rules of construction.

Types of plates, schemes
Technology self-laying
Cost

Types and features of the device

The most popular overlapping for today both in the cottage and in industrial construction is naturally a monolithic plate.

Those who have the opportunity to order construction equipment (crane) prefer ready-made w / w products (quickly and fairly cheap). Many pour monolith themselves, creating a system of removable or non-removable formwork.

Also are also very convenient and available collection-monolithic floors (Marco, Teriva, ChPP, YTONG).

Since the monolithic slab of the overlap is one of the supporting structures, the concrete of heavy grades can be used for their manufacture, a light construction concrete of a dense structure, as well as a dense silicate concrete.

To set the monolithic overlap, it is necessary to determine its type in advance, as they differ in technical parameters, and by price.

Benefits of the slabs of overlapping and their types

In the structure of the panel there are solid and void, and according to the method of installation of prefabricated, collecting-monolithic and monolithic. All of them fall under the concept of monolithic floors, at the finish stage there is a deposit of all layers. Such structures have not only high strength indicators, but also fire safety, moisture resistance and extremely durable.

Precast floors of railway panels

Most often make from round-standing panels, which are characterized by an acceptable price, less weighing, increased thermal insulation properties compared to monolithic. The overlaps of them are quickly mounted, and a wide size of them allows you to choose a slab under the customer's need. The only drawback is the mandatory use of the crane.

The length of the manufactured plates is from 1.8 to 15 meters, width - from 0.6 to 2.4 m.

The standard thickness of the factory PC is 220 mm, and the calculated bearing capacity (from 350 to 800 kgf / m2) of the panels differs due to the use of different brands of concrete and reinforcement. The weight of the plates depends on the size and ranges from 0.65 to 2.5 tons.

Determine the necessary parameters allows labeling. Letters denotes the type of PC product (overlapping panel), FNO (the flooring panel is lightweight), numbers - length and width in decimeters, as well as the load in kilopascals. Recalling from the calculated load on the own weight of the slab, receive a permissible payload. When laying parts on the wall, the depth of the support must be respected at least 12 cm.

If the length of the overlapping room exceeds 9 meters, a monolithic ribbed plate is suitable. It is half easier (sq.meter weight is about 270 kg) that almost a quarter reduces the overall load on the walls.

Sometimes cracks are found in the ceiling plates. They are shrinking or deformation. Cracks up to 0.3 mm are not dangerous, but if the panel has large diagonal or longitudinal cracks, it is better to replace it. If the cracks appeared during operation, then it is necessary to enhance the slab by increasing the addition of an additional reinforced layer of the screed.

For the insulation of the ends of the panels in the outer wall, which serve as "cold bridges", use light-concrete thermal lies.

Practice shows that sometimes the size of the room turns out to be disproportionate the width of the panels and the need to additionally fill the monolithic sections between the plates appear. If the spreading of the plates is up to 5 cm, such seams are poured with concrete without reinforcement, the seams of over this size require the laying of additional armofamas.

Before laying overlapping on the bearing walls, a reinforced monolithic belt under the plate is satisfied. This is a continuous closed beam, the reinforcement of which is carried out by varietal metal.

To be guaranteed to purchase high-quality reinforced concrete PCs, it is better to buy them directly at the Zbby plants or in construction companies that have the capacity of the production of w / w products.

The average price of one square meter of the smoke-standing panel in Moscow and the region ranges from 1 100 to 1 200 rubles. The plates from 3 to 7 meters most popular, while the products are smaller and greater length will cost more (in terms of m2). The most sought-after width is 1.2 - 1.5 m.

Plates up to 1 meter width and 1.8 meters are not producing all manufacturers, which also affects their price.

Collected-monolithic

The device of collecting-monolithic floors has not yet become the most popular method, but already won his niche in the construction market. The essence of the method: the w / b beams are stacked on the walls (step 60 cm) and between them the hollow blocks, the whole design is deposited.

Installation is possible without the use of mechanisms, since the weight of the circuit meter of the beam 19 kg. Due to the large-standing blocks, it has low weight and has increased thermal insulation qualities. The only minus is complexity (blocks are laid by hand).

Before pouring concrete, the design should be reinforced (wire mesh with 10x10 cm cells), the minimum thickness of the concrete layer is at least 5 cm.

One square meter of the finished overlap weighs up to 390 kg (if blocks are made of ceramzite concrete) and up to 300 kg (if the blocks are made of polysterobetone). And this is almost two times less than the monolithic overlap of 2 cm with a thickness of 2 cm (about 500 kg / m2).

GSK "Columbus" (Marco) The square meter of structures, of which the collection-monolithic slabs of the overlapping consist, offers an average of 1,100 rubles, and work on the turnkey device will cost 3,000 - 3,500 rubles per M2.

Self installation

With the erection of the house with their own hands, it is possible a device of monolithic inter-storey overlaps in place. After the interleavers of the walls of the first floor, begin to build formwork under the monolithic plate. Supports of the same size and height are installed in 1 meter increments all over the perimeter of the stove. Connecting their bars adjacent to the walls close.

The boards are placed on the supports, on top of the rubberoid (without climbing the walls). The formwork is placed around the perimeter of the future overlap, so that the monolith reliably relieves on the walls. Armature is located at a distance of at least 50 mm from the layer of insulation. The calculation of the required pruhni is made according to the formula - S (area) x4x2. The most problematic moment is fill.

To feed concrete to the height you need to order concrete pump.

Forecasting plate on their own

Comparative cost analysis

A comparison of two types will be very significant: using ready-made hollow railway plates and the device of the monolithic plate with their own hands overlap 6x6 (conventional dimensions). The thickness of the overlapping in both cases is 0.22 m, the carrier load of 8 kPa.

Plate overlapping:

It will take 5 PC plates 62.12 - 8. (costs - 8 000 x 5 \u003d 40 000 rubles)
Delivery and rental of the crane will cost approximately 10,000.
Pouring of seams and anchoring (0.5 m3 of concrete) - 2 000
Installation occurs in one day, enough two workers (s / n).

Total - about 55,000.

Monolith do it yourself:

Formwork costs (2 m3 sawn timber) and fasteners - 8,000.
Armature (rod steel diameter 10, mesh for calculation + wire wire) about 0.6 tons with delivery can be bought for 20,000 rubles
Ready concrete (m300) 8 m3 and rental of concrete pump will cost 26,000 - 29,000
Workers (4 days formwork, assembling fittings, fill) - 20,000.
Expenses for additional materials and tools - 3,000.
The period of technological hardening of concrete is 3 days.

The result is about 80,000 rubles and a week of time.

The cost of a meter of square combined overlap is slightly over 1 500, and monolithic - 2 200.

Source: http://stoneguru.ru/monolitnaya-plita-perekrytiya.html.

Monolithic sections between overlap plates

Before you decide to independently make monolithic areas between slabs of overlapping, soberly appreciate your capabilities, because it is a serious painstaking job. But if you still decided to make a monolith between the plates yourself, then you will have to go through the following stages of installation.

Scheme of the monolithic site.

1 Preparation of the surface
2 calculations design
3 Production of formwork
4 Installation of formwork
5 Installation of prefabricated metal structures

Surface preparation

At this stage you will have to take care that at the right moment you have at hand were the necessary materials and tools. Therefore, about eating you need to take care of in advance.

So, to make a monolithic selection site, you will need the following tools: a perforator, a tank-long screw with a length of 90 mm long, threaded studs are standard 2 m, nuts, washers, keys of the roar and precipitant, winning drills on concrete, drill on a 90 cm long drill The screwdriver, cruciforms of the screwdriver of very good quality (good quality is required because the edges of poor-quality bids are very quickly erased), a hook, a bollard with metal discs, a circular saw with a diamond spraying (for cutting boards along and across the fiber), hammer 800- gram, a sledgehammer up to 3 kg, a steel-size nails in size 120 mm, a tape measure - 2-3 pieces (roulettes are necessary for carrying out accurate measurements, there must be enough of them, as they often break and lose), carpentine pencil, carpentine corner 50 cm long , joiner stapler with brackets, level.

Moretenance materials are still required: knitting wire with a diameter of 0.3 mm for binding of frames, reinforcement with a diameter of 12 mm, a wire with a diameter of no less than 6 mm, cement, gravel, sand, film thickness 100-120 microns, boards 50x150 mm, 5x50 mm boards.

It is also necessary to take care of the means of protection in advance, because you and your assistants will have traumatic work at the height among sticking nails, reinforcements and boards. To protect you, you will need: gloves, closed shoes (building boots or shoes made of tight fabric type of army beans old sample), safety glasses, cap or helmet.

Calculations of construction

Calculation of the collection plate of overlapping.

At this stage, you will need to carry out accurate measurements and calculations to know what and in what quantity you need. First of all, find out what the slabs will be.

To do this, we will find out the width of the building and divide it in half, into two equal parts.

Immediately determine where the staircase is on the second floor, which side will be the rise of the staircase march, and only after that we calculate the size and number of slabs of the overlap.

The length of the slab overlap is the width of the house, divided by 2.

The width of the slab overlap can be three standard sizes: 80 cm, 1 m 20 cm, 1 m 50 cm.

We carry out the calculation of the required size and the number of slabs of the overlap, taking into account the fact that there should be a gap in 7 cm between the plates. After everything was calculated and accurately recognized the required size and number of floor slabs, we order them at the factory or from building materials suppliers.

Attention!

Do not forget to consider the gap of 7 cm between the slabs of the overlap! The lack of a gap between the plates will complicate their installation and can subsequently cause deformation.

Production of formwork

Installation scheme formwork.

These boards, called blooms, along the entire length of the shield every 40-50 cm. Remember: the first and last bluff should be not closer to 10 cm from the edge of the pin edge. We fasten a bloom with boards with self-strokes with a length of 90 mm using a screwdriver at the rate of 3-4 screws to 1 crosslinkable board.

Then, align the edges of the panel with a circular saw with a carpentry corner.

It will take 3 such prefabricated panels, they will become the edges of the formwork.

Installation of formwork

Installation scheme formwork.

To perform this stage of work, a team of 3-4 people will need.

To facilitate the assembly, put one shield as a base. Under each bloumb, we install the strut so that there is nothing under load.

Breeping to the base of the formwork of the rib. Ribs are fastened with what width we need beam. The beams of three sizes are allowed: 35, 40, 45 cm.

With the required width of 35 cm both side ribs put flush. With the required width of 40 cm flush, only one edge of two collectors is put.

If the beam is needed 45 cm wide, the ribs are fasten without using this reception. All fasten with self-tapping screws.

As a result, we turned out a box of three teams in the place where the future beam will be located.

Figure 4. Types of fixing ribs to base. A - 35 cm, b - 40 cm, in - 45 cm.

Now we harm the strut from the reinforcement. They will be needed in order to withstand the desired size of the beam and prevent the messengers. Just cut the reinforcement into pieces of the desired length (35, 40 or 45 cm).

If this is not done, concrete will lose a lot of moisture together with sand and cement. After drying on the outer edges of the beams, gravel will be very much. The surface of the beam will be all covered with strong roughness and irregularities, grumps and depressions, so-called sinks.

Such a beam will be poorly, and it will have to remake it.

Installation of prefabricated metal structures

The diagram of the reinforcement frame.

Start knitting the frame on Earth. We make 8 veil lengths from the reinforcement (the length of one vein is equal to the length of the future beam).

Now we make from the wire M-6 clamps that bend manually. From a solid piece of wire, you need to make a square from a given length of its sides.

Thus, the 35x35 cm beams need a clamp with 30 cm sides, for the 40x40 cm beams, we make 35x35 cm clamps, for the beam 45x45 cm - 40x40 cm, cm. Such sizes of the clamps are necessary in order to after installing it to formwork it .

Remember: the minimum distance between the formwork wall and the clamp should be 2.5-3 cm, not less!

This is necessary so that in the end, the metal parts of the clamp did not appear on the surface of the beam. If the metal will be bought on the surface of the beam, then it is precisely in this place that the corrosion of the metal and the destruction of concrete will begin, and hence the beam itself.

The ends of the clamp combine the mustache, that is, there must be the overlap of the ends of the clamp, which fasten with each other double knitting wire with a diameter of 0.3 mm.

Wire folded twice, getting a double knitted wire. It is such a wire that needs to bind the ends of the clamp.

Knowing that the clamps should be located along the entire length of the beam at a distance of 40-50 cm from each other, it is easy to calculate their required quantity.

We collect a frame. To do this, each side of the clamp is binding a double knitting wire of 2 veins at an equal distance from folds and between each other. Clamps located on the veins at 40-50 cm from each other. The distance between the clamps must be withstanding necessarily.

We put the finished frame in the installed box, trying not to damage the film. If suddenly the film was damaged, then nothing terrible, just close the hole with another piece of film and secure it with a stapler.

Sometimes for various reasons you have to do veins from pieces of reinforcement of different lengths. There is nothing terrible in it, the construction technology allows it.

Just take another piece of reinforcement and tie it with a double knitted wire over the place of connecting two parts of the vein, while the flax length should be 60 cm in each direction. This immediately explains why builders prefer to make veins from whole pieces of reinforcement, and not to collect them from pieces.

After all, if you collect from pieces of different lengths, it turns out a strong overrun of the building material. And this work is carried out when the frame is already inside the box.

Scheme of monolithic overlap with their own hands.

After we take a drill on a tree and taking into account the fact that the pressure of the concrete goes from below, we make holes equal to the diameter of the hairpin, at 15-20 cm from the bottom of the box. We make 1 through hole at the bottom of each blunder. We cut the studs on the length you need.

The length is calculated like this: the width of the support beam + two thicknesses of the board + two thickness of bloumb + two threads for screwing nuts with washers. The resulting studs insert into the box.

Now we take pre-prepared pieces of fittings - struts. We set them from above each stud. We twist the studs to the easy stop strut so that they keep.

We take the level and equalize the formwork vertically earth so that it does not behave after compression. All deviations in one direction or another are eliminated by side spacers. Installation of studs and installation of spacers is one of the important prefabricated stages of the design.

After setting the strut, check everything again, only after that attach all the supporting boards to the formwork with nails or self-drawing.

Now proceed to hanging the carcass. To hang the frame, it needs to be tied to studs. It is easiest to do this using a height template - a small 2,5х2,5x -30-patch box with a size. Everything is simple: put the height pattern under each clamp and latter it to the hairpin in the touch of double knitting wire. After fixing the last clamp, the frame will be suspended in the air.

After that, all check and inspect. It is impossible to allow tensions of the film or the touch of clamps with the walls of the box. Then pinch the transverse rails to stitch the formwork board. From the bottom of the base, measure the height of the beam and driven nails along the entire length of the box at this height. These nails are beacons, concrete will be poured on them.

Now check the strength of the lower and lateral spacers, they must freely withstand a decent weight. If you have doubts, add more supports. Remember: concrete has a high density. The slightest symbol - and the design will collapse under the weight of concrete.

I was convinced that everyone did everything right, then boldly pour concrete.

For the manufacture of beams, the M300 or M350 brand cement is used, which is best to buy ready, as the beam must be pouring at once without a break. If there is no such possibility, hire a large concrete mixer so that in place in one receive to disperse the entire required volume of concrete.

After 3-5 days, with good weather, the concrete will dry, with a bad process of drying will take longer.

After complete drying of the concrete, you can proceed to the dismantling of the wooden formwork and the installation of the slabs themselves.

The solution of the solution is accepted by the project. The mobility of the solution should be 5-7 cm in the depth of immersion of the cone.

Overvolving the joints should be performed after checking the correct installation of the plates, acceptance of welded connections of elements in nodes of conjugation and performing the anti-corrosion coating of welded joints and damaged parts of the coating of mortgage products. Concrete mixes used to deploy joints must meet the requirements of GOST 7473-94 and the project.

After installing and welding an anchors of the hinge nest in the stoves, it is necessary to deposit with a solution M 100.

The horizontal penabile in the walls must be laid with a brick with a thorough construction of masonry.

Device of monolithic sections in overlaps

	Composition of operations and controls
Stages of work	Controlled operations	Control	Documentation
Stages of work	Controlled operations	(method, volume)	Documentation
Preparatory	Check:		Passport
			(certificates),
	Availability of documents O.	Visual	general magazine
	Availability of documents O.	Visual
	quality on elements
	formwork and reinforcement
	products, concrete mix;
	Installation accuracy I.	Visual,
	connection of individual	measuring
	elements, quality
	fastenings and internal
	formwork surfaces;
	Installation accuracy	Technical
	reinforcement products	inspection of all
		elements

Base of regulatory documentation: www.complexdoc.ru

and height, reliability of their fixation.

Device	Control:	General magazine
monolithic
plots	The quality of the concrete mix;	Laboratory
	The quality of the concrete mix;	Laboratory
	Formwork condition;	Technical

	The order of laying concrete
	mixtures, filling the sinuses,
	sufficient seal;
	Temperature-humid measuring
	concrete hardening mode
	according to the requirements of the PPR;
	Concrete strength and timelines
	rocks.
	Check:	Act of acceptance
performed		performed

	Actual strength	Laboratory

	Surface quality	Visual,
	constructions, compliance measuring,
	project position
	holes, channels, openings,
	mortgage details.

Tools: plumb, two-meter rail, roulette, metal line.

Base of regulatory documentation: www.complexdoc.ru

Operational control is carried out: Master (foreman), laboratory engineer - in the process of work.

Acceptance controls are carried out: employees of quality service, master (foreman), representatives of the customer technician.

Technical requirements

Snip 3.03.01-87 p. 2.14, Table. 2.

Allocated deviations:

- in the distance between:

- separately installed working rods - ± 20 mm;

- rows of mesh - ± 10 mm;

- from the design thickness of the protective layer of concrete with its thickness to 15 mm and linear sizes of the cross section of the structure:

Up to 100 mm - +4 mm;

- from 101 mm to 200 mm - +5 mm;

- local irregularities of the concrete surface when checking a two-meter rail - 5 mm.

The height of the free dropping of the concrete mix in the formwork of floors should not exceed 1.0 m.

Base of regulatory documentation: www.complexdoc.ru

Concrete strength (at the time of the construction of structures) should be at least 70% of the design strength.

Not allowed:

Add water at the site of laying a concrete mix to increase its mobility.

The reinforcement of monolithic sites should be issued as an act of examination of hidden work.

Requirements for the quality of the materials used

GOST 7473-94. Mixtures concrete. Technical conditions.

GOST 23279-85. Mesh reinforcement welded for reinforced concrete structures and products. General specifications.

GOST 10922-90. Reinforcement and mortgage products welded, compounds welded reinforcement and mortgage products of reinforced concrete structures. General specifications.

GOST R 52086-2003. Formwork. Terms and Definitions.

The formwork should have strength, rigidity, unchanged forms and resistance in the working position, as well as in the conditions of installation and transportation.

Wood moisture used for deck should be no more than 18%, for supporting elements - no more than 22%.

Deck boards must have a width of no more than 150 mm.

Formwork elements should fit tightly to each other when assembling. The slots in the butt connections should not be more than 2 mm.

On the deck of shields from plywood, cracks, burgers and local deviations of a depth of 2 mm are not allowed, on the wood deck - more than 3 mm in the amount of no more than 3 per m2.

When accepting formwork, it is necessary to check the presence of a passport with the installation and operation of formwork, check the geometric dimensions, quality of working surfaces, protective coloring surfaces that do not touch with concrete.

Limit deviations for reinforcement grids, mm:

Base of regulatory documentation: www.complexdoc.ru

- widths, sizes of cells, differences in the length of diagonals of flat grids, free ends of the rods - ± 10;

- flat grids - ± 15.

The limit deviations from the straightness of the rods of grids should not exceed 6 mm per 1 m mesh length.

Concrete mixes should be characterized by the following indicators:

- strength class;

- convenientness;

- the view and number of source materials (binders, aggregates, additives);

- the size of the aggregates.

In coordination with the design organization that carries out the author's supervision, the samples of the concrete mix on the place of laying them in the monolithic design is allowed not to be selected, but to evaluate the strength of concrete according to the control of the manufacturer of the concrete mixture.

Conceptuality of the concrete mixture is determined for each batch no later than 20 minutes after the delivery of the mixture to the placement site.

Instructions for the production of work

SNiP 3.03.01-87 PP. 2.8-2.11, 2.16, 2.100, 2.109

Before concreting, horizontal and inclined concrete and brick surfaces of work seams should be cleaned of garbage, dirt, oils, snow and ice, cement film, etc. immediately before laying a concrete mix, purified surfaces must be washed with water and dried by air.

Concrete mixes should be laid in concrete structures with horizontal layers of the same thickness without breaks, with sequential laying in one direction in all layers. Reinforcement steel (rod, wire) and varietal hire, reinforcement and mortgage elements must comply with the project and requirements of the relevant standards. The replacement of the stipulated reinforcement steel should be agreed with the customer and the design organization. Installation of reinforcement structures should be made mainly from large-sized blocks or unified grids of factory manufacture.

View 20 messages - from 1 to 20 (from 20 total)

Messages

I need to pour a plot between two hollow slabs, discuss how to do it right?

There are two 6 meter empty plates, lie in parallel, but between them a distance of 1.15 meters. I want to make an entrance to the basement, and a plot of 4 × 1.15 meters must be pledged with concrete.

That's what I went on the Internet:

- Main material for work, channel 24cm. (To get dressed on wetting plates 22 cm)

- we dress two 4 meter chapellers on the plates

- We cut it with two sections of the channel of 1.15 and weld it all. It turns out a box along the perimeter of the plot of the plot.

- weld to the chapeller with a grid of 12 reinforcement, it will be the bottom layer of the plot of the plot. Cage in this lattice 20cm.

- We weld up to the chaserler the grid of the upper layer of the plot of the plot, probably out of 10 reinforcements.

- We put a formwork from below.

- Pour everything with concrete to the height of the plates.

I think everything correctly? I'm confused by some moments:

All this piece of reinforced concrete will hang on a welded reinforcing fittings. Will it? Armature diameter ... Enough or not? Different diameter in layers or not? Will there be enough 20 cm cells or not?

Quote:

well, if you have nowhere to go

have you seen prices for such a channel?

i used the cheeks from the corner 50-60

they are also transverse. Strengthened 12 reinforcement (so in the stoves and goes).

and when she was deposited by concrete - it would not be done anywhere.

but what googles:

Quote:

Poured 2x2.5 meters between the stove and the wall. To the staircase opening on the 2nd floor. The monolith put the partition walls from PB with a thickness of 10 cm with a height of 3m. 3 years is not stirring ...

in the stove and wall, the perforator made holes in 2 rows. In the stove under the top and bottom above / under the Armotura, i.e. The holes were left on top / bottom of the vintage in the stove. Step is somewhere 12-15 cm at high 15-20 cm heights in width. 12 reinforcement welded to these reinforcements and did, as in the FENDAMENT, the reinforcement frame of the cube, i.e. Both planes have coppped with more vertical jumpers. I checked before the fill, jumping over the reinforcement frame with a bag of cement on the shoulders of the picture, probably that was still well, and then the formwork from the bottom-inquils, poured all the self-herded concrete, watered 2 days, then hurt himself .... A week later, it was refranking before, removed the formwork .... All reinforced concrete way

Quote:

he is a monument .... The stove is the volatile, the thickness of the cochina - well, see 3, if you cherish the top / bottom well, 5-7 cm ... and then the hole .... Well, if much hunt, it is better to break .... As they say, sores to the second void and long smooth the bar ....

What kind of guys are about you guys. Look more closely on the side of the slab. What you see there is correctly deepening. And for what it is correct to create a key. Niotno No channels and to sleep the plates. Summer formwork from the bottom to the plates and if it looks around between the plates it turns out a trough. Place the grids from the bottom and on top and pour the plate and the FSE. It is all the case will hang on the neighboring plates, and the knaps will not give it to fall.

How to bring a formwork I think a lot is not necessary. Put the bars right along the stoves, to them on the twists hanging the formwork of the shield into tight to the plates.

Think on construction sites someone blows the slab chtoli under mu, or the seammer is cooking. ???????????????

Fearless somehow. All the same for myself. The site is obtained 4x1.15 meters, will leave 1 cube concrete. Well and fittings - the weight of the whole design will be in the region of 2.5 tons.

And all this without fastening? They say more plates can be somewhat 1-2 cm ...

Nah, an option without fastening is not our way at all ...

One key is about 6 tons, if memory does not change me. We are kada at home we design that the device MU is quite common practice. A current of concrete and fittings and no channels and drilling plates are on their device.

Kada concrete will grab, then everything will fall as a stake and will not fall anywhere. Believe me.

In general, your business

If there is no partitions, it is possible to simply pour concrete, only not all the height, there is enough 12-15 cm, directly so the formwork put higher reservoirs. The reinforcement lie down after 20-25 cm, you can straight holes in the sidewall plates, they are already scheduled there, and insert fittings.

At the bottom of concrete, it is better to throw a masonry mesh. Fittings need a little, the main grid below.

At home (monolithic plot) 3.5 * 2 meters, a thickness of 10 cm, a partition passes from above. Nothing has fallen anywhere not cracked. Concrete is better to do the strand, brand 250-300 (the cement should be released on the cube type 6-7 bags)

If it is terrible to look like a staircase in residential buildings, size 1.50 * 2 * 20 thickness 6 cm, frame mesh 5mm for a cell 15 * 15 cm. It looked at the factory.

Quote:

And the meaning in such a fine design? Easily weight? Or facilitate work? I still do not understand ....

Quote:

because it's all the same then the ceiling of the 1st floor stretch, the floor is roving the second, then it will come out ... .. Just this Ipatorium will be later

Jurij. Pralna says - in the cochina plate there are round depresses (at the top / bottom of which and he settled) when pouring this cow (mu) will be a tap with a serious plates .... Here I just want to add that I have all the plates with each other are welded to did not shiftrelative to each other. For the ears to which the crane is cling, the reinforcement of the edge .... It's every case - an earthquake there or something else

this is called anchoring of plates, the stoves are tightened between themselves with twists and welded it all about the loop in the stove. Plates are annexed not only among themselves, but also in the walls, by booking one end of the anchor into the wall and the other end is also welded to the loop. Plates are angry through one with a step of no more than 3 m.

Quote:

Drilling is an extra mesmerion. A serious hooking with plates is due to the knap. Mu must be poured on the entire height of the plate is 220 mm.

Very useful selection - now I'm thinking about it - as it turns out to be simple. I first thought that it was necessary to fly into the edges of the opposite plates and insert the reinforcement there - and here it is like.

And at the construction site who did what?

We must, two and a half years, the topic ... Unfortunately, the photo is not, but pour the gap M / at PP ... It is described enough. Those who are greatly worried about the fact that the plates will disperse and other phobias when you put the reinforcement. Provide the releases of transverse reinforcement, part of the ends are welded with the eyelashes for the hook of the plates (the rest will go under the tie). When concrete freezes, get a stone (reinforced) and not only "prolonged" to PP, but also "tied" to them.

I poured the emptiness between the plates with a width of 0.6 m. He spoiled in the plate at the bottom edge, inserted the fittings across. She threw a longitudinal 2 bar. On top put 3 cardboard pipes from under linoleum. Tied to the reinforcement and flooded everything with concrete. It turned out a void jumper.

Scheme of the monolithic site.

Surface preparation

Calculations of construction

Sometimes you have to make wide monolithic sections between overlap plates. They must be calculated according to the current loads. The drawing developed a monolithic portion of 980 mm wide, based on two wetting plates. The conditions for such a monolithic area (load, the principles of reinforcement, etc.) are detailed in the article.

Monolithic plot between two prefabricated plates

welding nets and frames

- Installation of supports and formwork
- Concrete mix and her fill
- Finishing recommendations

shape the reinforcement grid
prepare a concrete mix
completely pour concrete.

Necessary materials and tools

concrete mixer

Stages of work on the formation of a monolithic section between overlapping plates

Back to the category

Installation of supports and formwork

First we form a formwork for a monolithic area, which should have such mechanical and strength characteristics so that a long period to keep a large mass of a concrete solution, which will dry out long enough.

Sources:

www.sferatd.ru.

Monolithic sections between overlap plates

Scheme of the monolithic site.

Surface preparation

At this stage you will have to take care that at the right moment you have at hand were the necessary materials and tools. Therefore, about eating you need to take care of in advance.

Calculations of construction

Calculation of the collection plate of overlapping.

At this stage, you will need to carry out accurate measurements and calculations to know what and in what quantity you need. First of all, find out what the slabs will be. To do this, we will find out the width of the building and divide it in half, into two equal parts. Immediately determine where the staircase is on the second floor, which side will be the rise of the staircase march, and only after that we calculate the size and number of slabs of the overlap.

The length of the slab overlap is the width of the house, divided by 2.

The width of the slab overlap can be three standard sizes: 80 cm, 1 m 20 cm, 1 m 50 cm.

Attention!

Do not forget to consider the gap of 7 cm between the slabs of the overlap! The lack of a gap between the plates will complicate their installation and can subsequently cause deformation.

Production of formwork

Installation scheme formwork.

For the manufacture of formwork, we take a 50x150 mm board and sew the shield from them with a height of 40 cm. On one shield (1 edge of the future formwork) will go 3 boards. It turns out an edge of 45 cm tall, where 40 cm is the height of the future beam overlap and 5 cm - the necessary supply. They cross them with transverse pieces of 5x50 mm boards and 40 cm long. There are these boards, called blooms, along the entire length of the shield every 40-50 cm. Remember: the first and last smells should be not closer to 10 cm from the edge of the pin edge. We fasten a bloom with boards with self-strokes with a length of 90 mm using a screwdriver at the rate of 3-4 screws to 1 crosslinkable board. Then, align the edges of the panel with a circular saw with a carpentry corner.

It will take 3 such prefabricated panels, they will become the edges of the formwork.

Installation of formwork

Installation scheme formwork.

To perform this stage of work, a team of 3-4 people will need.

To facilitate the assembly, put one shield as a base. Under each bloumb, we install the strut so that there is nothing under load.

Breeping to the base of the formwork of the rib. Ribs are fastened with what width we need beam. The beams of three sizes are allowed: 35, 40, 45 cm. With the required width of 35 cm, both side ribs are flushing. With the required width of 40 cm flush, only one edge of two collectors is put. If the beam is needed 45 cm wide, the ribs are fasten without using this reception. All fasten with self-tapping screws.

As a result, we turned out a box of three teams in the place where the future beam will be located.

Figure 4. Types of fixing ribs to base. A - 35 cm, b - 40 cm, in - 45 cm.

After that, we proceed to the upholstery of the resulting box with a film from the inside, while using a joiner stapler with brackets. It is necessary in order to prevent unnecessary water loss from concrete and avoid the appearance of shells. If this is not done, concrete will lose a lot of moisture together with sand and cement. After drying on the outer edges of the beams, gravel will be very much. The surface of the beam will be all covered with strong roughness and irregularities, grumps and depressions, so-called sinks. Such a beam will be poorly, and it will have to remake it.

Installation of prefabricated metal structures

The diagram of the reinforcement frame.

Start knitting the frame on Earth. We make 8 veil lengths from the reinforcement (the length of one vein is equal to the length of the future beam).

Now we make from the wire M-6 clamps that bend manually. From a solid piece of wire, you need to make a square from a given length of its sides. Thus, the 35x35 cm beams need a clamp with 30 cm sides, for the 40x40 cm beams, we make 35x35 cm clamps, for the beam 45x45 cm - 40x40 cm, cm. Such sizes of the clamps are necessary in order to after installing it to formwork it . Remember: the minimum distance between the formwork wall and the clamp should be 2.5-3 cm, not less!

The ends of the clamp combine the mustache, that is, there must be the overlap of the ends of the clamp, which fasten with each other double knitting wire with a diameter of 0.3 mm.

Wire folded twice, getting a double knitted wire. It is such a wire that needs to bind the ends of the clamp.

Knowing that the clamps should be located along the entire length of the beam at a distance of 40-50 cm from each other, it is easy to calculate their required quantity.

Sometimes for various reasons you have to do veins from pieces of reinforcement of different lengths. There is nothing terrible in it, the construction technology allows it. Just take another piece of reinforcement and tie it with a double knitted wire over the place of connecting two parts of the vein, while the flax length should be 60 cm in each direction. This immediately explains why builders prefer to make veins from whole pieces of reinforcement, and not to collect them from pieces. After all, if you collect from pieces of different lengths, it turns out a strong overrun of the building material. And this work is carried out when the frame is already inside the box.

Scheme of monolithic overlap with their own hands.

Now we take pre-prepared pieces of fittings - struts. We set them from above each stud. We twist the studs to the easy stop strut so that they keep.

After setting the strut, check everything again, only after that attach all the supporting boards to the formwork with nails or self-drawing.

Now check the strength of the lower and lateral spacers, they must freely withstand a decent weight. If you have doubts, add more supports. Remember: concrete has a high density. The slightest symbol - and the design will collapse under the weight of concrete.

I was convinced that everyone did everything right, then boldly pour concrete.

After 3-5 days, with good weather, the concrete will dry, with a bad process of drying will take longer.

After complete drying of the concrete, you can proceed to the dismantling of the wooden formwork and the installation of the slabs themselves.

o-cemente.info.

Monolithic plot between two prefabricated plates

Such a monolithic plot works as a stove, based on adjacent prefabricated plates. To do this, it has its workforce-curved workforce, the diameter of which depends on the width of the site (the calculated length of the plate of this section) and the load on the overlap. Longitudinal fittings - constructive, it creates a reinforcing grid, but the load does not carry. At the top of a wide monolithic site, an anti-pixel mesh is also stacked from smooth reinforcement of small diameter.

The figure shows examples of reinforcing two monolithic sections in housing (without any additional loads in the form of warm floors and brick partitions).

We divided into two, because The monolithic area is based on two plates, and each of them has half of the load.

1,3 * 140 * (1.2 + 0.58 * / 2) + 1.1 * 50 * (1.2 + 0.58 * / 2) + 1.3 * 150 * (1,2 + 0 , 58 * / 2) + 199 \u003d 929 kg / m\u003e 480 kg / m.

Thus, you should always check the supporting capacity of the plates depending on the dimensions of the monolithic portion, the width of the plate and loads, on it affecting it.

Bulk monolithic plot.

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Sealing seams between plates overlap after installation and on the ceiling

Installation of slabs of overlapping is a responsible business requiring knowledge and experience. Unfortunately, situations occur when there is a design solution on the spot, and as a result - a non-standard situation, when the widths of the slabs are lacking for the construction site for mounting. We will answer the eternal Russian question "What to do?"

Regulatory requirements for the magnitude and fill of mounting seams

Typical sizes of plates provide their laying with 15 mm seams, that is, practically an online jack. Regulatory literature prescribes a device of monolithic areas with reinforcement when the distance between the plates is 300 mm.
To seal the seams between the slabs of the overlap, it is necessary to apply concrete on a fast-hardening portland cement or portland cement M400 or higher than the fine filler. The size of the aggregate grain should not be more than a third of the interpute gap and three quarters of the size in the light between reinforcing rods. In the concrete mixture it is necessary to introduce plasticizers and grasp accelerators.

If the standard seams turned out between the plates of 10-15 mm wide, then it is usually for the bottom of the seam that is arranged in the form of "cone", put the rod of the reinforcement, and is poured with a solution.

Close up non-projective joints up to 300 mm

In case the width of the seams between adjacent plates does not exceed 300 mm, close this seam is relatively simple, to choose from - several ways to fill seams.

Method 1

From the bottom of the neighboring plates with the help of spacers, we set the board or sheet of plywood, the overlapping gap is a formwork;
On top of the formwork, you can put a piece of roofing material or film, then there will be no traces of concrete on the formwork, and it can be used further;
The gap between the plates is poured with a solution;
We are waiting for a set of concrete strength for 3-4 weeks, the formwork is removed.

Method 2.

If there is no possibility to bring the formwork from below, it is possible to make a non-removable formwork from galvanized roofing steel with a thickness of 0.8-1 mm in size for the gap between the plates, with supporting on the top edge of the plate (trough). The side surface profile of the plates will provide an additional space and stiffness to a monolithic area.

Method 3.

Another method of sealing the seams by a non-removable formwork - from the strips of steel with a thickness of 4 mm and a width of 5 cm make mounting parts by a gap profile, as in the previous case, resting on the front surface of the plates, lay these mounting parts by 0.5 m along the plate length. On the bottom (in the plane of the bottom edge of the plates), we put the band from galvanized roofing steel, plywood or plastic, concreting. This method provides a reliable clutch of a monolithic area with plates.

Method 4.

If there was a pair of defective slabs with an incorrect location of the side locks, when the excavation turns out to be at the bottom, they can be installed next to the gap 2-3 cm. Basement to bring the formwork in the method 1 and pour concrete through the provided slot.

Monolithic sections width more than 300 mm

In case the gap between the plates from 100 to 300 mm, we perform a monolith with reinforcement. Options are also possible here.

Option 1

Used in the case when the formwork device is not possible.

We establish carrying bars with a cross section of 40x100 mm on the edge, with 1 m increments, laying on adjacent plates;
To the carrier bars with wire twists, fastening the shields of formwork;
We close the formwork with roofing material or film;
We establish the reinforcement frame on the glasses so that the valve is above the formwork at 30 ... 50 mm;
Concrete.

Option 2.

Upon the possibility of fixing the formwork, the bottom can be used for the device carrying fittings.

Construct formwork;
We make from the reinforcement A1Ø8 ... 12 (depending on the width of the clearance), the mounting parts, given that between the bottom of the formwork and the reinforcement there should be a distance of at least 30 mm;
On the bottom of the formwork lay the protective material;
Install the mounting details;
Put the reinforcement or reinforcement frame;
Concrete.

Do not agree on the sealing of the gap between the wall and the slab with light concrete cellular blocks (foam concrete, ceramzite concrete, etc.) - they do not possess the required bearing ability. With the placement of furniture along the walls on this section of the floor there is a large load, this will lead to the destruction of the blocks and the need for the cost of repairing overlap.

Plots between the wall and stove are close in the same way.

In this story, it is told not only about the sealing of the seams, but also about the anchoring of the plates among themselves:

Sealing seam ceiling on the bottom

Interputer seams - Rusts on the mounting are filled with concrete, then the ceiling is ground, shit and paint, if another finish is not provided.

The sequence of sealing rusts

Before concreting, the seams are thoroughly cleaned from dust and residues with a metal brush, for the best adhesion of the solution to the plate, the side surfaces can be projected.

The cooked fresh concrete solution is discharged into the container and deliver to the place of operation;
With a small width of Rusta, the fill is performed at a time, with a large width of the site - in several layers, but not more than 2 ... 3 hours;
The concrete section of a small width is pinned, with a large - seal with a vibrator;
The first week the surface of the monolith is wetted daily;
After 28 days, formwork is removed.

Uneven shrinkage at home

It is unpleasant when cracks appear on the ceiling. Often it happens because ::

Uneven sediment of the building;
Incorrectly selected brand of concrete;
Poor-quality concrete.

Let us dwell on the causes of uneven precipitation. It may occur in the case of:

Constructive flaws - incorrectly projected foundation;
Foundation devices excluding geology, ground freezing depth and groundwater depth;
Poor quality work on the construction of the foundation and masonry of the walls;
Low-quality building materials.

To understand the reason for the appearance of cracks, it is necessary to order construction expertise.

Decorative ceilings

The protective layer of concrete with a thickness of 30-50 mm should ensure the absence of rust spots on the ceiling from the reinforcement, but sometimes this layer is ineffective. From the observation of spots on the ceiling, traces of leakage and cracks of the rust, the best means is a device of a suspended, tail or stretch ceiling.

Decorative ceiling is the best solution if you need to level the ceiling surface. He will close all the construction flaws and give the completeness of the interior. If desired, reduce the height of the room is suitable for multi-level or suspended ceilings from drywall, acoustic slabs or combined from various materials.

In the rooms of a small height, tube or stretch ceilings are performed. Here the champion - a stretch ceiling, which "eats" only 3-5 cm of the room's height.

Any problem finds its solution. Seaming seams between the plates in a gas-concrete house, even with a large width, is not a big constructive or technical problem. From the proposed options it is easy to choose a suitable case.

We tried to write the best article. If you like - please share it with friends or leave your comment below. Thank you!

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Monolithic plot between two prefabricated plates

The figure shows examples of reinforcing two monolithic sections in housing (without any additional loads in the form of warm floors and brick partitions).

As you can see, the sections are of different widths, but setting the goal of performing a wide monolithic area based on the plates, you must always check, and whether its slabs will withstand it. This is the most important point in the design of monolithic sites. The carrying capacity of the slab slabs is different (from 400 to 800 kg / m2 - without taking into account the weight of the slab).

Suppose we have two prefabricated plates with a width of 1.2 m, between which there is a monolithic portion of 0.58 m wide. Carrier capacity of plates of 400 kg / m2, i.e. One mongon meter of such a plate can withstand 1.2 * 400 \u003d 480 kg / m.

We calculate the load on 1 mongon meter of the plate from the monolithic area with a thickness of 220 + 30 \u003d 250 mm \u003d 0.25 m. The weight of the reinforced concrete is 2500 kg / m3, the reliability coefficient by load 1.1.

0.25 * 1.1 * 2500 * 0.58/2 \u003d 199 kg / m.

We divided into two, because The monolithic area is based on two plates, and each of them has half of the load.

In addition to the weight of the monolithic section, we have a load on the slabs from the floor design (140 kg / m2), from partitions (50 kg / m2) and temporal load on the weight of people, furniture, etc. (150 kg / m2). Multiplying it all on the coefficients and the width of the collection plate plus half the width of the monolithic section, and adding the load from the entire weight of the monolithic site, we will receive the final load on each plate of the slab:

1,3 * 140 * (1.2 + 0.58 * / 2) + 1.1 * 50 * (1.2 + 0.58 * / 2) + 1.3 * 150 * (1,2 + 0 , 58 * / 2) + 199 \u003d 929 kg / m\u003e 480 kg / m.

We see that the load turned out more than can withstand the stove. But if you take a slab with a carrier ability of 800 kg / m2, then one mongon meter of such a plate can withstand 1.2 * 800 \u003d 960 kg / m - the reliability of the design will be provided.

Thus, you should always check the supporting capacity of the plates depending on the dimensions of the monolithic portion, the width of the plate and loads, on it affecting it.

Types of monolithic sections in the collection of overlap.

Monolithic plot between two prefabricated plates.

Monolithic area between the cooker and the wall.

Bulk monolithic plot.

Monolithic sections in metal beams with a stove from above.

Monolithic sections in metal beams with a slab below.

Calculation of monolithic sections in metal beams.

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Monolithic sections between overlap plates

Scheme of the monolithic site.

Surface preparation

At this stage you will have to take care that at the right moment you have at hand were the necessary materials and tools. Therefore, about eating you need to take care of in advance.

So, to make a monolithic selection site, you will need the following tools: a perforator, a tank-long screw with a length of 90 mm long, threaded studs are standard 2 m, nuts, washers, keys of the roar and precipitant, winning drills on concrete, drill on a 90 cm long drill screwdriver. Crusad-shaped bits on a very good quality screw (good quality is required because the edges of poor-quality bokets are very quickly erased), hook, bollard with metal discs, circular saw with diamond spraying (for cutting boards along and across the fiber), hammer 800 gram, Sledge hammer up to 3 kg, steel nails in size 120 mm, roulette # 8211 2-3 pieces (roulettes are necessary for carrying out accurate measurements, there must be enough of them, as they are often broken and lost), carpentine pencil, carpentine angle 50 cm long, Joiner stapler with brackets, level.

Calculations of construction

Calculation of the collection plate of overlapping.

Length of the slab overlap # 8211 This is the width of the house, divided into 2.

The width of the slab overlap can be three standard sizes: 80 cm, 1 m 20 cm, 1 m 50 cm.

Do not forget to consider the gap of 7 cm between the slabs of the overlap! The lack of a gap between the plates will complicate their installation and can subsequently cause deformation.

Monolithic area between two plates width 980 mm (download DWG drawing)

Monolithic plot between two prefabricated plates

The figure shows examples of reinforcing two monolithic sections in housing (without any additional loads in the form of warm floors and brick partitions).

As you can see, the sections are of different widths, but setting the goal of performing a wide monolithic area based on the plates, you must always check, and whether its slabs will withstand it. This is the most important point in the design of monolithic sites. The carrying capacity of the ceiling slabs is different (from 400 to 800 kg / m 2 - without taking into account the weight of the slab).

Suppose we have two prefabricated plates with a width of 1.2 m, between which there is a monolithic portion with a width of 0.98 m. The bearing capacity of the plates of 400 kg / m 2. i.e. One mongon meter of such a plate can withstand 1.2 * 400 \u003d 480 kg / m.

0.25 * 1.1 * 2500 * 0.98 / 2 \u003d 337 kg / m.

We divided into two, because The monolithic area is based on two plates, and each of them has half of the load.

In addition to the weight of the monolithic site, we have a load on the slabs from the floor design (140 kg / m 2), from partitions (50 kg / m 2) and temporal load on the weight of people, furniture, etc. (150 kg / m 2). Multiplying it all on the coefficients and on the width of the plate plate, and adding the load from the monolithic site, we will receive the final load on each column plate:

1,3 * 140 * 1.2 / 2 + 1.1 * 50 * 1.2 / 2 + 1.3 * 150 * 1.2 / 2 + 337 \u003d 596 kg / m 480 kg / m.

We see that the load turned out more than can withstand the stove. But if you take a slab with a carrier capacity of 600 kg / m 2. Then one mongon meter of such a plate can withstand 1.2 * 600 \u003d 720 kg / m - the reliability of the design will be provided.

Thus, you should always check the supporting capacity of the plates depending on the dimensions of the monolithic portion, the width of the plate and loads, on it affecting it.

Monolithic overlap area with oblique angle. The reinforcement frame for the slab with a bevel. Concrete works for a monolithic plate with a bevel. Holding concrete and care for it.

Reinforcement work should be performed in accordance with the requirements and recommendations of SNiP 3.03.01-87 carrying and enclosing structures, GOST 19292-73. Instructions for welding reinforcement compounds and mortgage parts of reinforced concrete structures CH 393-78. Guidelines for the production of reinforcement work. And other applicable regulatory documents.

Concrete work should be performed in accordance with the requirements and recommendations of SNiP 3.03.01-87 carriers and enclosing structures.

The composition of the concrete mix. Preparation, acceptance rules, control methods and transportation must be complied with GOST 7473-85.

In the production of works on the construction of reinforced concrete monolithic structures, it is necessary to be guided by the requirements of SNiP 3.03.01-87 carrying and enclosing structures and the relevant sections of the safety regulations shown in SNiP III-4-80. working drawings and instructions of the PPR - project production project.

1. Monolithic area of \u200b\u200boverlapping with oblique angle (mind-1).

In houses. Where construction is provided for the construction with an angular transition of walls at an angle of not 90 °, as usual, but, for example, 45 ° - overlap are performed in a monolithic version.

You can, of course, take a conventional reinforced concrete plate and knock out the desired bevel plate, and cut the reinforcement.

But this is fraught with the fact that if the reinforced concrete plate is made with a stressed reinforcement frame (and most often and do on the plants of the progress - such a frame requires less consumption of reinforcement), then in such a trimmed form, the stove will lose its carrying capacity. And it can immediately burst during such circumcision.

Note: A strained armature frame is a frame, the rods of which were clamped in a special form. And then, heating, pulled up to the desired size.

Next, it was welded by transverse frames. Flipped with concrete and dried in a steady chamber. Crouching the rods from the fixed shape was performed already when the stove was in the finished form. Those. The reinforcement rods in the concrete are stretched as guitar strings. Well, if the string breaks - you yourself know what happens.

Therefore, everything that does not fit into the standard dimensions of industrial reinforced concrete products and structures is performed in a monolithic version at the construction site of the house. In our embodiment, the monolithic stove is a continuation of the precast concrete plates.

2. The reinforcement frame for the slab with the bevel (mind-1).

The manufacture of the reinforcement frame and the grid must be performed according to the drawings and have the exact location of the welded elements. Replacing the stipulated reinforcement steel in the class, brand and the assortment is agreed with the design organization.

The technological process of manufacturing the reinforcement framework provides:

edit and cutting steel reinforcement, wire. Diameter supplied in MOTKI diameter 3 ... 14 mm and in rods with a diameter of 12 ... 40 mm on the rods of dimensional length
edit (flexible) and butt welding rods to the desired size
welding nets and frames
enlarging assembly (welding and mating wire) volumetric reinforcement blocks
transportation and installation of frames on a construction site.

The reinforcement frame of the monolithic section of the mind-1 is performed according to the dimensions indicated in the scheme (see Fig.). And it consists of a C-2 grid and two reinforcement frames K-1. interconnected reinforcement rods from the same steel A-III.

Reinforcement grids should be cooked with spot welding. For frame and grid, fittings are used according to the specified tab 1.

Table 1: The specification of reinforcement for the frame of the monolithic slab overlap.

Creating your own hands of a monolithic plot between the plates

Necessary materials and tools
Stages of work on the formation of a monolithic section between overlapping plates
- Installation of supports and formwork
- Formation of reinforcement lattice
- Concrete mix and her fill
- Finishing recommendations

Construction of a private house # 8211 Task is complex and time consuming, in which it is necessary to perform a variety of types of work. For example, it may be necessary to pour a monolithic area between the floors due to the fact that it is not possible to form the overlap completely from the slabs by the project. This happens very often in cases of formation of staircases or, if necessary, laying between plates of a variety of communication elements. To form a monolithic area between the plates is quite possible with your own hands. Although this work and time-consuming, but fully executed, if you adhere to all construction standards and rules.

If necessary, laying between plates of a variety of communication elements, you can create a monolithic area between the plates with your own hands.

In the process of forming a monolith plot between overlap plates, it is important to correctly perform the following work:

install backups and form a formwork
shape the reinforcement grid
prepare a concrete mix
completely pour concrete.

The correct execution of these types of work will create a durable and reliable portion of monolith between overlap plates in the required place.

Necessary materials and tools

Given the fact that the work on the device of the concrete section of the overlap consist of different stages, each of them needs to prepare a number of materials. The list of such materials can be varied due to different factors, including how much the distance between the slabs should be pouring. The standard list is as follows:

The horizontal support for formwork is laid on the wooden beams.

plywood or boards to create a direct surface for pouring solution and side formwork, construction film
wooden beams or metal channels for creating a horizontal support to which plywood or male pallet will be laid
bar (120-150 mm), wooden beams or chapellers to create bearing supports under the formwork
reinforcement rods (15-25 mm), wire for binding, metal chairs to install reinforcement rods at the required height (can be used and reinforced grid)
cement M400, Sand, Crushed, Water For Concrete Solution
concrete mixer
circular for cutting bars, boards, plywood, as well as metal reinforcement rods
shovel, tool for pinching, trowel or rule to align the surface of the surface of the ceiling between the plates, the protective film for covering this site.

The number of all materials depends directly from the distance between concrete slabs you need to block and which area as a whole occupies the monolithic section of the overlap. Usually, in private houses, such a block of overlapping is not very large, so its formation is not too complex task. However, at the same time, it should still be followed by a clear poetting and rules for working with construction materials and structures.

Stages of work on the formation of a monolithic section between overlapping plates

The monolithic area of \u200b\u200boverlapping between the plates is formed approximately as well as any monolithic overlap. Given the small area of \u200b\u200bsuch a plot, work, of course, is simplified, but adhere to all construction standards and rules is necessary. Therefore, whatever distance between concrete slabs is flooded, all stages of work must be carried out carefully, from which it will depend on the reliability of the monolithic design being created.

Scheme of the monolithic site.

At this stage you will have to take care that at the right moment you have at hand were the necessary materials and tools. Therefore, about eating you need to take care of in advance.

Calculations of construction

Calculation of the collection plate of overlapping.

The length of the slab overlap is the width of the house, divided by 2.

The width of the slab overlap can be three standard sizes: 80 cm, 1 m 20 cm, 1 m 50 cm.

Attention!

Do not forget to consider the gap of 7 cm between the slabs of the overlap! The lack of a gap between the plates will complicate their installation and can subsequently cause deformation.

Production of formwork

Installation scheme formwork.

It will take 3 such prefabricated panels, they will become the edges of the formwork.

Installation of formwork

Installation scheme formwork.

To perform this stage of work, a team of 3-4 people will need.

To facilitate the assembly, put one shield as a base. Under each bloumb, we install the strut so that there is nothing under load.

As a result, we turned out a box of three teams in the place where the future beam will be located.

Figure 4. Types of fixing ribs to base. A - 35 cm, b - 40 cm, in - 45 cm.

Installation of prefabricated metal structures

The diagram of the reinforcement frame.

Start knitting the frame on Earth. We make 8 veil lengths from the reinforcement (the length of one vein is equal to the length of the future beam).

The ends of the clamp combine the mustache, that is, there must be the overlap of the ends of the clamp, which fasten with each other double knitting wire with a diameter of 0.3 mm.

Wire folded twice, getting a double knitted wire. It is such a wire that needs to bind the ends of the clamp.

Knowing that the clamps should be located along the entire length of the beam at a distance of 40-50 cm from each other, it is easy to calculate their required quantity.

Scheme of monolithic overlap with their own hands.

Now we take pre-prepared pieces of fittings - struts. We set them from above each stud. We twist the studs to the easy stop strut so that they keep.

After setting the strut, check everything again, only after that attach all the supporting boards to the formwork with nails or self-drawing.

I was convinced that everyone did everything right, then boldly pour concrete.

After 3-5 days, with good weather, the concrete will dry, with a bad process of drying will take longer.

After complete drying of the concrete, you can proceed to the dismantling of the wooden formwork and the installation of the slabs themselves.

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