Performance Study Of Thin-wall Box Cast-in-place Concrete Hollow Siab As High-rise Building Basement Roof

Thin-walled box of cast is a lightweight, high strength thin-walled box embedded in the floor, arranged the floor reinforced around, and then pouring concrete curing forming non-core pulling into the hole hollow board. This hollow floor has a large hollow area rate and construction of it is fast and convenient, which can have great application prospects. According to the "Seismic Design of Buildings", the structure of the cast slab should be used as the upper structure mounted parts of the basement roof, but that causing confusion to the majority of engineering and technical personnel in the application of thin-walled box of cast. Force characteristics of the basement roof using thin-walled box of cast high-rise buildings and hollow plate embedded solid parts of the upper structure of great significance. By the finite element method of thin-walled box of cast, and analyzed as the basement roof rigidity changes in structural properties of high-rise buildings, major work includes the following three aspects:1) Analysis of thin-walled box of cast in the floor frame structure assumed elastic and rigid computing both cases the internal force and displacement error hollow rigid plate of the influencing factors and the factors of rigidity of the hollow plate studied.2) analysis of thin-walled box of cast as the basement roof rigid conditions on the performance of high-rise building structure. In this paper the comparative analysis of rigidity change on the overall structure of the dynamic characteristics of the deformation characteristics and the internal force characteristics of the hollow board, to study high-rise building structures on the basement of the hollow board board rigid requirements.3) Comparative analysis with the basement of the overall model and calculated the upper basement roof as the model of separation of the embedded solid parts of the structural dynamic properties, deformation characteristics and the internal force characteristics, analysis of the rigid conditions of the thin-walled box of cast as the basement roof.