A new steel-concrete composite cast-in-place hollow floor

Abstract

The invention provides a novel steel-concrete combined cast-in-situ hollow floor. The novel steel-concrete combined cast-in-situ hollow floor consists of a sectional steel column, a sectional steel main beam, a concrete ribbed beam, an upper flange plate, a lower flange plate and a netlike box-shaped component, wherein the lower end of the sectional steel main beam adopts a special steel mould; the netlike box-shaped component is formed by combining a box roof, a box bottom and a box body; the box roof is manufactured from concrete mortar and a reinforcing material under the action of a mould or is formed by compounding the netlike bodies and an adhesive; the box bottom is manufactured from the netlike body; the box body is manufactured from the netlike body; the reinforcing ribs of the netlike bodies are required to be vertically arranged; each netlike body comprises a netlike board, reinforcing ribs and connecting sheets; the netlike board, the reinforcing ribs and the connecting sheets form an entirety; at least two structural inclined planes are arranged at corners of the box bottom and the box body; the netlike body of the box bottom of the netlike box-shaped component is directly compounded in the lower flange plate. By virtue of surface tension of concrete, the unsealed netlike box-shaped component replaces a fully-sealed hollow filling body and a solid filling body as a hole forming technology of the steel-concrete combined cast-in-situ hollow floor.

Description

technical field [0001] The invention relates to a steel-concrete combined cast-in-place hollow floor, in particular to a novel steel-concrete combined cast-in-place hollow floor with holes formed by reticulated box-shaped members. Background technique [0002] At present, housing construction basically adopts structural systems such as cast-in-place reinforced concrete frame structure, shear wall structure, frame-shear wall structure and cylinder structure; in recent years, steel structure and steel concrete structure system have developed. As the skeleton, use profiled steel plates to replace part of the structural steel bars and floor formwork, which has better toughness and stronger bearing capacity than reinforced concrete structures. However, the profiled steel plate must be placed on the upper end of the upper flange of the shaped steel beam, and the structural reinforcement is constrained by the shaped steel web, and can only be arranged on the upper end of the shaped...

AI Technical Summary

Problems solved by technology

However, steel structures are generally used in high-rise buildings. The holes are made of heavy inorganic hollow fillers, which relatively increase the weight of high-rise buildings, which is not conducive to earthquake resistance. The buoyancy of holes formed by sealed hollow fillers is large.

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