Thin-walled cold-formed section steel composite floor system and modular prefabrication method thereof

Abstract

The invention discloses a thin-walled cold-formed section steel composite floor system and a modular prefabrication method thereof. The composite floor system comprises a thin-walled cold-formed section steel framework, autoclaved aerated concrete slabs, a reinforcement mesh, lightweight concrete and a facing layer. The thin-walled cold-formed section steel framework is like grids. The autoclavedaerated concrete slabs are inlaid into the grids of the thin-walled cold-formed section steel framework and are fixedly connected with the thin-walled cold-formed section steel framework. The reinforcement mesh is arranged above the autoclaved aerated concrete slabs. The reinforcement mesh and the lightweight concrete are poured integrally. The facing layer is arranged on the upper surface of thelightweight concrete and fixedly connected with the thin-walled cold-formed section steel framework. The thin-walled cold-formed section steel composite floor system has the excellent properties of clear and reasonable stress and force transfer, can meet the requirement for the large span, is partitioned spatially and flexibly and is suitable for the requirements of a residential market. The prefabrication method has the advantages that the process is simple, the speed is high, and the integrality is good, is beneficial to achievement of energy conservation of a building and facilitates industrial production and modular construction of the green building of a thin-walled cold-formed section steel structure.

Description

technical field [0001] The invention relates to a multi-layer cold-formed thin-walled steel residential structure, in particular to a cold-formed thin-walled steel composite floor and a modular prefabricated assembly method thereof. Background technique [0002] Over the years, cold-formed steel structures have been widely used in low-rise residential buildings and small industrial buildings abroad due to their advantages of light weight, easy forming, environmental protection and recyclability, and are expanding to multi-storey buildings. my country has introduced a large number of low-rise cold-formed steel structure residential technologies from abroad. Up to now, cold-formed steel structures are mainly used in buildings below three floors. Due to the large population, tight land resources, and severe earthquake disasters, it is more in line with my country's national conditions to develop cold-formed thin-walled steel structure residences from low-rise to multi-storey. ...

AI Technical Summary

Problems solved by technology

The autoclaved lightweight aerated concrete (ALC) floor slab adopted in Japan can greatly reduce the weight of the structure and has better use functions, but this kind of floor slab is relatively thick and is mainly used for low-rise steel structure residences

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