箱形内模现浇混凝土空心楼盖结构几何参数影响分析

Effecting Analysis of Geometric Parameter on Cast-in-situ Concrete Hollow Floor with Box Filler

采用超单元布置楼盖,建立箱形内模现浇混凝土空心楼盖结构的分析模型,分析空心楼盖的变形、裂缝等变化规律。通过对比分析,归纳总结肋梁宽度、内模尺寸、楼盖厚度等几何参数对结构性能的影响大小及规律,统计出箱形内模现浇混凝土空心楼盖结构几何尺寸选择思路,为该类型现浇混凝土空心楼盖的设计研究提供参考。

The analysis model of cast-in-situ concrete hollow floor with box filler is created by super elements collo- cation. The transformation regularity of hollow floor deformation and cracks is analyzed. Through comparative analysis, the influences of geometric parameters including the width of the rib beam, the size of the box filler and the thickness of the floor on the structural performances are conducted and summed up. Then the choose method of the geometric parameters of cast-in-situ concrete hollow floor with box filler is summed up, which may provide the reference for the research and design of this kind of cast-in-situ concrete hollow floor.