Method for manufacturing prefabricating combined cast-in-situ floorslab for earthquake-resistant building

Abstract

The invention discloses a method for manufacturing a prefabricating combined cast-in-situ floorslab for an earthquake-resistant building, which solves the problems that the conventional precast plate building cannot resistant earthquake and the cast-in-situ building has high building construction cost. The method is characterized by comprising the following steps: pre-casting vertical reinforcing steel bars on bearing walls of a building needing masonry at intervals; laying the precast plate of which two sides are provided with convex blocks on the bearing wall, and enabling the reinforcing steel bars extending out of the end part of the precast plate lied on the wall to be connected with the pre-cast vertical reinforcing steel bars of the wall; laying a full-length reinforcing steel bar in a groove formed between the convex blocks of the two sides of the precast plate lied on the whole building; and performing in-situ concrete casting on the interspace between the wall and the precast plates as well as the groove between the precast plates to make the whole building formed into a whole. The constructed building has the advantages that the precast plate is time-saving, thrifty, convenient and rapid to use; and the constructed building has an integral cast-in-situ earthquake-resistant function, and can be used for new building construction in villages.

Description

1. Technical field [0001] The invention belongs to a method for making floor slabs during building construction, and in particular relates to a method for making anti-seismic floor slabs for houses by combining prefabrication and cast-in-place processes. 2. Background technology [0002] In the civil buildings in rural cities and towns in our country, prefabricated cement boards are basically used at present. Since the prefabricated cement board has multiple hollow pipe holes, it has the advantages of light weight, good sound insulation, low cost, and convenient and quick installation. In particular, the steel bars in the middle are straightened and prestressed, so the strength is also large. widely accepted by the people. However, since such prefabricated cement boards are all long strips, arranged side by side on the load-bearing wall, and are not connected to each other, they cannot form a whole, so there is a problem that they cannot resist earthquakes. At present, in ...

AI Technical Summary

Problems solved by technology

However, since these prefabricated cement boards are all long strips, they are arranged side by side on the load-bearing wall, and they are not connected to each other, so they cannot form a whole, so there is a problem that they cannot resist earthquakes

At present, in large-scale high-end buildings in cities and towns, the cast-in-place method usually adopted, although it has the advantages of being able to interconnect with the beams to form a whole, strong earthquake resistance, and watertight, but it must be laid on site, the construction progress is slow, and the internal laying It is difficult to have high-strength prestressed steel bars, and the overall strength is not high; because of its heavy weight, its deflection deformation is large and it is easy to crack

Furthermore, there is no hollow pipe hole in the middle of the cast-in-place floor, and formwork must be laid during construction, so there are also disadvantages such as large material consumption, high construction cost, poor sound insulation effect, and slow construction progress

With the improvement of building energy-saving standards, the floor slab must be laid with a thermal insulation layer, and the insulation layer is interposed between the two concrete layers, which will make the floor slab unable to form an overall structure, and the effect of mutual involvement and decompression cannot be achieved. It can increase the compressive weight on the concrete layer of the lower floor, further increasing the deflection deformation and cracks of the floor

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