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Integrated construction method of fabricated prestressed concrete hollow slab and cast-in-place beam

A construction method and concrete technology, applied to floors, building materials, building components, etc., can solve problems such as slow construction speed, floor height difference, and impact on project quality, so as to enhance the force bearing capacity and integrity, shorten construction time, The effect of speeding up the progress of the project

Active Publication Date: 2017-12-08
CITIC GUOAN CONSTR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in-situ concrete hollow slabs are mostly used in the construction of floors and slabs in building construction projects, which have good adaptability to large-span, large-load and large-space structures, but there are also many defects, such as their use in most products. Both belong to patents, and the construction drawings must be designed according to the product. It is difficult to control the cost. At the same time, this type of cast-in-place hollow slab has a considerable demand for formwork materials, and the cost performance is relatively low.
[0003] At present, the bottlenecks in the application of prestressed concrete hollow slabs are mainly: the material of prestressed concrete hollow slabs is relatively brittle, and longitudinal cracks are easily generated during the hoisting process; it is difficult to ensure that the prefabricated structure and the cast-in-place structure have good connectivity; When pouring the ring beam, the construction of the prefabricated slab can only be carried out after the ring beam reaches a certain strength, and the construction speed is slow; it is very difficult to hoist the prestressed concrete hollow slab to ensure its level, and the bottom slab is prone to obvious height differences, which affects the quality of the project

Method used

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  • Integrated construction method of fabricated prestressed concrete hollow slab and cast-in-place beam
  • Integrated construction method of fabricated prestressed concrete hollow slab and cast-in-place beam
  • Integrated construction method of fabricated prestressed concrete hollow slab and cast-in-place beam

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Effect test

Embodiment 1

[0036]Scaffold 5 is connected by bowl buckle 6, the support point is set at 300-400mm at the end of the board, the vertical pole spacing is 600mm, and diagonal braces 14 are set at a horizontal 400mm spacing, and the bottom of the vertical pole of the support system is provided with long skids; the top of scaffolding 5 is set Adjustable top screw bolt 2, and lay 100mm×100mm wooden square 3; the size of the steel bar is determined according to the design value, and the top and both sides of the beam steel bar 9 are respectively welded with 16mm thick pre-embedded steel plate 7, which is segmented; the bottom of the pre-embedded steel plate 7 is welded There are studs 21; install 40cm long M50 pre-embedded screw rods 8 at a certain distance along the direction of the beam, and the pre-embedded screw rods 8 are bound and fixed with the beam steel bars 9 on the main body with tie wires; If it is less than 50º, the included angle cannot meet the requirements, and an iron pole should...

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Abstract

The invention relates to a fabricated prestressed concrete hollow slab and cast-in-place beam integrated construction method which comprises the following steps: 1) mounting hollow slab supporting systems, 2) laying a beam bottom die, 3) binding beam steel bars, 4) mounting pre-mbedded parts, 5) sealing beam side dies, 6) hoisting hollow slabs, 7) mounting a slab joint die, 8) pouring a cast-in-place beam, 9) mounting a fixing steel plate, and 10) pouring a concrete surface layer. The fabricated prestressed concrete hollow slab and cast-in-place beam integrated construction method has the advantages that the structure is reliable, the construction is convenient, and the construction cost is low.

Description

technical field [0001] The invention belongs to the field of house construction engineering, and in particular relates to an integrated construction method of an assembled prestressed concrete hollow slab and cast-in-place beams, which is suitable for the application of prestressed concrete hollow slabs in floor and floor projects. Background technique [0002] At present, in-situ concrete hollow slabs are mostly used in the construction of floors and slabs in building construction projects, which have good adaptability to large-span, large-load and large-space structures, but there are also many defects, such as their use in most products. Both belong to patents, and the construction drawings must be designed according to the product. It is difficult to control the cost. At the same time, this type of cast-in-place hollow slab has a considerable demand for formwork materials, and the cost performance is relatively low. [0003] At present, the bottlenecks in the application...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B5/19
CPCE04B5/19E04B2103/02
Inventor 王新泉
Owner CITIC GUOAN CONSTR GRP CO LTD
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