Hollow floorslab core mold fixing device and construction method thereof

Abstract

The invention discloses a hollow floorslab core mold fixing device, which comprises a bottom die plate, a plate bottom bar-mat reinforcement, a plate top bar-mat reinforcement, a group of core molds and plain concrete cushion blocks, wherein the group of core molds are arranged between the plate bottom bar-mat reinforcement and the plate top bar-mat reinforcement, and are arranged in a matrix manner, the plain concrete cushion blocks are arranged between the tops of the core molds and the plate top bar-mat reinforcement; the plate top bar-mat reinforcement is in bound connection with the plain concrete cushion blocks, and is connected with the bottom die plate through a connecting piece; the cross sections of the core molds are rectangle, gaps are reserved between the bottoms of the core molds and the plate bottom bar-mat reinforcement; four vertical side faces of the core molds are all provided with rebar fixtures, so as to clamp the corresponding core molds among the rebar fixtures; the tops of the rebar fixtures exceed the plate top bar-mat reinforcement, and two side faces of each rebar fixture are respectively tightly pressed on the side faces of two adjacent core molds; vertical supports are arranged among the core molds, the upper ends of the vertical supports are connected with the plate top bar-mat reinforcement and the lower ends of the vertical supports are connected with the plate bottom bar-mat reinforcement. The hollow floorslab core mold fixing device has the advantage that the technical problems of the traditional core mold fixing method that the workload is heavy, the integral bar-mat reinforcement rigidity is low, the core mold is easy to damage and the late repair workload is heavy are solved.

Description

technical field [0001] The invention belongs to the field of building construction, and in particular relates to a fixing device for a mandrel of a hollow floor slab and a construction method thereof. Background technique [0002] The cast-in-place concrete hollow floor is to use the mandrel to arrange in a certain order and replace part of the concrete of the solid floor to form a cavity or a lightweight sandwich, so that the cavity and hidden ribs are formed to form a space honeycomb stress structure. The advantages of cast-in-place concrete hollow floor slabs: reduce the weight of the structure, save materials, and reduce the overall construction cost; because the cast-in-place concrete hollow floor slabs contain interlayers, they have better sound insulation, heat insulation, and heat preservation effects; good seismic performance. [0003] At present, the construction sequence of the hollow slab is as follows: first build the slab, then lay the reinforcement mesh on the...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a hollow-core floor mandrel fixing device and its construction method, to solve the technical problems of the traditional mandrel fixing method with heavy workload, low overall rigidity of the steel mesh, and heavy mandrel repair workload in the later period when the mandrel is easily damaged.

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