BZS cavity composite floor structure and construction method thereof

A construction method and technology for floor slabs, which are applied to floors, building components, building structures, etc., can solve the problems of difficult construction of gypsum mould boxes, unsatisfactory forming conditions, floating displacement of mould boxes, etc., so as to save building materials and reduce the total construction period. The effect of shortening and reducing the overall cost

Inactive Publication Date: 2018-12-14
EAST CHINA JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the construction of the gypsum mold box used as the inner mold in the cast-in-place floor slab is relatively difficult
Through the inspection of the BZS cavity composite floor slab construction site that has been completed and is under construction, it is found that the molding condition is not ideal, and it is easy to produce honeycomb p

Method used

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  • BZS cavity composite floor structure and construction method thereof
  • BZS cavity composite floor structure and construction method thereof
  • BZS cavity composite floor structure and construction method thereof

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0030] Example 1:

[0031] (1) According to the BZS cavity composite floor structure design, the provided BZS cavity composite mold box has a size of 580mm×580mm×200mm; the provided cubic concrete standard pad size is 60mm×60mm×60mm, and the pad is placed in the BZS cavity. The four corners under the cavity composite form box support the form box to facilitate the flow of concrete into the bottom of the form box, to ensure that the concrete can be vibrated and compact, and to avoid holes, honeycombs, and bar defects in the bottom of the bottom plate of the form box.

[0032] (2) Because the BZS cavity composite mold box is lighter and has better water absorption, the mason is required to water one day in advance before pouring and pour the concrete, and then water the mold box before pouring the concrete to increase the quality to prevent floating.

[0033] (3) After the installation of the BZS cavity composite mold box is completed, the anti-floating steel bars are bound according t...

Example Embodiment

[0036] Example 2

[0037] (1) According to the construction method of the BZS cavity composite floor slab, prepare the BZS cavity composite mold box, prepare for construction, and carry out the construction according to the steps in Example 1;

[0038] (2) Specific analysis and control of new points and difficulties in the construction process:

[0039] 1) When pouring and tamping, the constructor controls the size and slump of the fine concrete aggregate. The aggregate size should not be greater than 30mm, and the slump must be controlled between 180mm~210mm;

[0040] 2) The unloading workers must put the concrete between the ribs of the mold box and prevent excessive accumulation at one time;

[0041] 3) Pouring must be done in layers, using jump rib pouring, with high-efficiency vibrating, and vibrating time is sufficient. Vibrate the next place only when concrete overflows on the other side of the mold box.

[0042] (3) In order to prevent mistakes due to lack of experience, technici...

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Abstract

A BZS cavity composite floor structure and a construction method thereof are provided. The BZS cavity composite floor structure comprises filling mold boxes, a template, cushion blocks, stressed steelbars and distributed steel bars. At least one steel wire hole is reserved in each filling mold box for steel wires to penetrate and be fixed. The stressed steel bars are respectively arranged in theupper and lower parts of the filling mold boxes. The distributed steel bars are arranged between the filling mold boxes. After concrete is poured, the stressed steel bars and the distributed steel bars form the template. The filling mold boxes are permanently buried in a concrete floor as internal molds. The filling mold boxes are glass fiber reinforced gypsum cavity molds, namely, BZS mold boxes.Steel wire holes are reserved in the BZS mold boxes for steel wires to penetrate and be fixed. The cushion blocks of the same height are placed under the four corners of each BZS mold box. By using the BZS cavity composite floor structure, the amount of concrete used in the floor can be reduced by 10-30%, the amount of steel used in the floor can be reduced by 20-30%, and the total construction period can be shortened by 10-15%. The comprehensive cost is significantly reduced, and the comprehensive engineering cost is 5-15% lower than that of buildings adopting an ordinary floor structure.

Description

technical field [0001] The invention relates to a BZS cavity composite floor structure and a construction method, belonging to the technical field of civil construction. Background technique [0002] The cavity composite floor slab is a composite cavity floor slab formed by using the prefabricated filling mold box as the inner mold and filling it in the concrete floor slab. The filling mold box is prefabricated with light refractory materials, and it plays the role of the inner mold during construction. The construction is completed Then stay in the floor slab and form a cavity composite floor slab with the reinforced concrete floor slab structure. BZS mold box is a prefabricated component, which is made of building gypsum as the main material and reinforced with glass fiber (BZS mold box for short). Building gypsum has been tested by the environmental protection department and identified as an "unrestricted" excellent building material. However, the construction of the gy...

Claims

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Application Information

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IPC IPC(8): E04B5/17
CPCE04B5/17
Inventor 曾润忠金晨王俊李康罗伟
Owner EAST CHINA JIAOTONG UNIVERSITY
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