CN114658250A - A decoration integrated sealing method for reserved openings in a floor slab of a lower suspended structure - Google Patents

Abstract

The invention discloses a decoration integrated sealing method for the reserved opening of the floor slab of the lower suspended structure, which solves the technical problems of difficulty in sealing and decoration of the reserved opening of the floor slab of the lower suspended structure. The present invention comprises the following steps: 1. construction preparation, 2. prefabricated components, 3. installation of prefabricated components, 4. pouring suspended floor slabs, 5. bottom decoration of suspended floor slabs, 6. temporary sealing, 7. pouring and sealing. The invention can be widely used in the construction of high-rise and super-high-rise building refuge floors and aerial corridors. By installing the pre-embedded box in advance, it not only ensures the smooth development of subsequent construction, but also solves the difficult problems of hole blocking and decoration and finishing. , the method is simple, practical, and can be widely used. The present invention can directly pour concrete at the reserved hole, and paint the same color anti-rust paint on the outer bottom of the pre-embedded box and the bottom surface of the blocked protruding pre-embedded box in advance, which can achieve the integration of hole sealing and decoration. purpose of construction.

Description

A decoration integrated sealing method for reserved openings in a floor slab of a lower suspended structure

technical field

The invention relates to the technical field of reserved hole sealing, in particular to a decoration integrated sealing method for reserved holes in a floor slab of a lower suspended structure.

Background technique

With the acceleration of my country's urbanization process and the improvement of people's living standards, the number and scale of high-rise and super-high-rise residential projects are steadily increasing. In order to meet the needs of building fire evacuation, the lower suspended refuge floor structure floor is widely used in high-rise and super high-rise buildings. In the construction of such structures, some temporary construction openings need to be reserved, but the blocking of temporary construction openings and the finishing construction such as decoration and decoration of this part have become a major problem that plagues a large number of construction workers. The traditional construction method is that when the temporary construction opening needs to be poured and closed, the steel bar is chiseled out by chiseling, and the bent steel bar is bent and flattened, and then the formwork is poured. This construction method not only increases the standard price, but also increases the labor and material repair costs for later repairs.

SUMMARY OF THE INVENTION

In view of the above-mentioned deficiencies in the background technology, the present invention proposes a method for integrating decoration and blocking of reserved openings in the floor slab of the lower suspended structure, which solves the technical problems of difficulty in sealing and decoration of the reserved openings in the floor slab of the lower suspended structure.

The technical solution of the present application is achieved in this way: a method for integrating decoration and sealing of reserved openings in a floor slab of a lower suspended structure, comprising the following steps:

①Construction preparation, design the size, location and quantity of reserved openings before concrete pouring of suspended floor slabs;

②Prefabricated components, according to the number and size of the reserved openings determined in step ①, the water stop ring, the embedded box, the top cover of the embedded box and the blockage of the embedded box are pre-prepared in the factory, and the bottom of the embedded box is provided with a working hole ;

③Install the prefabricated components. Before the suspended floor concrete is poured, the water stop ring in step ② is pre-buried on the outer periphery of the design position of the opening reserved in step ①, and the positioning welding is performed with the floor bottom rib to complete the pre-embedding of the water stop ring 1. After working, insert the prefabricated embedded box in step ② into the inner circumference of the water stop ring;

④Pour the suspended floor, and pour the water stop ring and the embedded box in step ③ simultaneously with the suspended floor to pour concrete;

⑤ The bottom of the suspended floor is decorated. After the suspended floor in step ④ is poured and reaches the design strength, the bottom formwork is removed, and the exposed bottom of the embedded box is derusted and painted;

⑥ Temporary blocking, when the reserved hole is temporarily not used, use the top cover in step ② to block the working hole of the embedded box;

⑦Pouring and sealing. When the reserved hole is no longer used, take out the top cover in step ⑥, use the plugging in step ② to insert and fit the working hole, and then carry out concrete pouring.

Further, in the step 3., before the concrete of the suspended floor slab is poured, the top cover is covered on the upper part of the embedded box, and the transparent tape is pasted at the joint between the top cover and the embedded box to carry out sealing treatment to prevent step ④ from pouring. During concrete, the mud flows into the bottom of the embedded box along the joint gap.

Further, when step 3 is performed, reserved steel bars are set at the positions of the reserved openings in the design of the suspended floor slab, and when step 7 is performed, the reserved steel bars are lapped and welded with the embedded box and then poured into concrete.

Further, the water stop ring, the pre-embedded box, and the plug in the step ② are processed with precision lathe equipment to ensure that the allowable deviation of the size is within 0.3mm.

Further, in the step ⑤, after the rust removal work is completed, the anti-rust paint of the same color as the bottom decorative surface of the suspended floor slab is painted, and the anti-rust paint should be painted on one bottom and two sides.

Further, when carrying out the above-mentioned one bottom and two sides, the base layer should be smooth and dry when applying the primer, the intermediate paint should be painted after the primer is completely dry, and the top paint should be sprayed. The finished product protection of the bottom decorative surface of the suspended floor should be done well before, so as to avoid pollution to the bottom decorative surface of the suspended floor.

Further, when carrying out the step 7, after taking out the top cover, the interior of the embedded box is cleaned up, and then the blockage in step 2 is used to insert and cooperate with the working hole, and the end face brushing and the suspended floor slab extending out of the working hole are blocked. Anti-rust paint of the same color as the bottom decorative surface.

Further, the strength of the concrete poured in the step (7) is one grade higher than the strength of the poured concrete of the suspended floor slab.

Further, the concrete poured in the step (7) is micro-expanded fine stone concrete.

Compared with the prior art, the beneficial effects of the present invention include:

1. The present invention can be widely used in the construction of high-rise, super-high-rise building refuge floors and aerial corridors. By installing the pre-embedded box in advance, the smooth development of the subsequent construction is ensured, and the hole blocking and decoration finishing are solved. Difficult problems, the method is easy to operate, practical, and can be widely used.

2. In the present invention, the pre-embedded box is pre-buried in the suspended floor slab in advance. When the opening is blocked in the later stage, there is no need to set up a template, and the concrete can be directly poured, and the bottom surface of the outer side of the pre-embedded box and the bottom surface of the block protruding pre-embedded box are painted in advance. The anti-rust paint of the same color as the bottom decoration of the suspended floor can achieve the purpose of integrated construction of hole sealing and decoration.

3. Before pouring the suspended floor slab, install the embedded box in the corresponding position according to the subsequent construction requirements. In order to prevent sundries and cement slurry from flowing into the embedded box, slowly insert the top cover into the embedded box as required, and wait for the subsequent construction to be completed. Then, when the reserved hole reaches the blocking condition, the bottom of the outside of the embedded box and the blocked lower end surface are painted with the same color of anti-rust paint as the bottom decoration of the suspended floor, and finally the reserved hole is blocked. The invention is easy to construct, practical and simple, saves cost and accelerates construction progress.

Detailed ways

The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

A decoration integrated sealing method for reserved openings in a floor slab of a lower suspended structure. (1) Construction preparation, design the size, position and quantity of the reserved openings before concrete pouring of the suspended floor slab;

②Prefabricated components, according to the number and size of the reserved openings determined in step ①, the water stop ring, the embedded box, the top cover of the embedded box and the blockage of the embedded box are pre-prepared in the factory, and the bottom of the embedded box is provided with a working hole ; Water stop ring, pre-embedded box, and plug are processed with precision lathe equipment to ensure that the allowable deviation of the size is within 0.3mm.

③Install the prefabricated components. Before the suspended floor concrete is poured, the water stop ring in step ② is pre-buried on the outer periphery of the design position of the opening reserved in step ①, and the positioning welding is performed with the floor bottom rib to complete the pre-embedding of the water stop ring 1. After the work, insert the prefabricated embedded box in step ② into the inner circumference of the water stop ring. Before the concrete of the suspended floor is poured, cover the top cover on the upper part of the embedded box, and paste the transparent tape on the joint between the top cover and the embedded box for sealing treatment, so as to prevent the mud from flowing into the joint gap when the concrete is poured in step ④. to the bottom of the embedded box.

④Pour the suspended floor, and pour the water stop ring and the embedded box in step ③ simultaneously with the suspended floor to pour concrete;

⑤ Decorate the bottom of the suspended floor. After the suspended floor in step ④ is poured and reaches the design strength, the bottom formwork is removed, and the exposed bottom of the embedded box is derusted and painted. After the rust removal work is completed, paint the anti-rust paint of the same color as the decorative surface of the bottom of the suspended floor.

Further, when carrying out the above-mentioned one bottom and two sides, the base layer should be smooth and dry when applying the primer, the intermediate paint should be painted after the primer is completely dry, and the top paint should be sprayed. The finished product protection of the bottom decorative surface of the suspended floor should be done well before, so as to avoid pollution to the bottom decorative surface of the suspended floor.

⑥ Temporary blocking, when the reserved hole is temporarily not used, the top cover in step ② is used to block the working hole of the embedded box;

⑦Pouring and sealing. When the reserved hole is no longer used, take out the top cover in step ⑥, use the plugging in step ② to insert and fit the working hole, and then carry out concrete pouring. Specifically, after taking out the top cover, clean the interior of the embedded box, and then use the plugging in step ② to insert and cooperate with the working hole, and the end face of the blocked working hole is painted with the same color as the bottom decorative surface of the suspended floor slab. Rust paint.

Further, when step 3 is performed, reserved steel bars are set at the positions of the reserved openings in the design of the suspended floor slab, and when step 7 is performed, the reserved steel bars are lapped and welded with the embedded box and then poured into concrete. The strength of the concrete poured by the reserved opening is one grade higher than that of the suspended floor slab, and the micro-expanded fine stone concrete is preferably poured.

The non-exhaustive parts of the present invention are conventional technical means known to those skilled in the art.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (9)

1. A decoration integrated plugging method for reserved holes of a lower suspended structure floor slab is characterized by comprising the following steps:

firstly, construction preparation, wherein the size, the position and the number of reserved holes are designed before concrete pouring of the suspended floor;

prefabricating a member, prefabricating water stop rings, an embedded box, a top cover of the embedded box and blockage of the embedded box in a factory according to the number and the size of the reserved holes determined in the step I, wherein a working hole is formed in the bottom of the embedded box;

installing a prefabricated part, embedding the water stop ring in the step II in the periphery of the designed position of the reserved hole in the step I before concrete pouring of the suspended floor slab, welding the water stop ring with the bottom rib of the floor slab in a positioning manner, and embedding the embedded box prefabricated in the step II in the inner periphery of the water stop ring after the embedding work of the water stop ring 1 is completed;

fourthly, a suspended floor is poured, and concrete is poured synchronously with the water stop ring, the embedded box and the suspended floor in the third step;

fifthly, decorating the bottom of the suspended floor, removing the bottom template after the suspended floor in the step IV is poured and reaches the design strength, and removing rust and spraying paint on the exposed bottom of the embedded box;

temporarily plugging, and when the reserved hole is not used temporarily, plugging the top cover in the working hole of the embedded box by adopting the step II;

and seventhly, pouring and blocking, when the reserved hole is not used any more, taking out the top cover in the step (sixthly), inserting and matching the blocking and the working hole in the step (sixthly), and then pouring concrete.

2. The method of claim 1, wherein the method comprises the steps of: and step three, before the concrete of the suspended floor is poured, covering the top cover on the upper part of the embedded box, and pasting a transparent adhesive tape at the seam between the top cover and the embedded box for sealing treatment, so as to prevent the slurry from flowing into the bottom of the embedded box along the seam when the concrete is poured in the step four.

3. The method of claim 2, wherein the method comprises the steps of: and (c) when the step (c) is carried out, arranging a reserved steel bar at the position of the reserved hole on the suspended floor slab, and when the step (c) is carried out, overlapping the reserved steel bar with the embedded box, welding and then pouring concrete.

4. The method of any one of claims 1 to 3 for the decorative integrated plugging of a reserved opening in a lower suspended structure floor, wherein: and processing the water stop ring, the embedded box and the plug in the second step by using a precision lathe device to ensure that the allowable deviation of the size is within 0.3 mm.

5. The method of claim 4, wherein the method comprises the steps of: in the fifth step, after the rust removing work is finished, the rust-proof paint with the same color as the bottom decorative surface of the suspended floor slab is coated, and one bottom surface and two surfaces are formed when the rust-proof paint is coated.

6. The method of claim 5, wherein the method comprises the steps of: when the first surface and the second surface are carried out, the base layer is ensured to be flat and dry when the primer is coated, the intermediate paint coating work can be carried out after the primer is completely dry, the finish paint is sprayed, the finished product protection work of the bottom decorative surface of the suspended floor slab is carried out before construction, and the bottom decorative surface of the suspended floor slab is prevented from being polluted.

7. The method of integrally plugging the reserved hole in the lower suspended structure floor slab as claimed in any one of claims 1 to 3 and 5 to 6, wherein: and (c) when the top cover is taken out, cleaning the inside of the embedded box, and then adopting the plug-in fit with the working hole in the step (c) to brush the end face of the plug extending out of the working hole with the anti-rust paint with the same color as the bottom decorative surface of the suspended floor slab.

8. The method of claim 7 for integrally sealing a preformed opening in a lower suspended structure floor, wherein the method comprises: and step (c), the strength of the concrete poured in the step (c) is higher than that of the concrete poured in the suspended floor slab by one grade.

9. The method of claim 8, wherein the method comprises the steps of: and step (c), pouring concrete into the mold, wherein the concrete is micro-expanded fine stone concrete.