摘要
地下室楼板不连续包括楼板大开洞、错层、设置施工后浇带等三种情况,采用有限元计算模型,详细分析了楼板不连续对构件内力的影响。通过分析得出如下结论:楼板大开洞且洞口长度与洞边距之比L/S大于1、楼板错层、设置后浇带时,应采用可以考虑楼板变形的有限元软件计算构件内力;楼板错层、纵横设置多道后浇带的中间区域,构件内力较大开洞时增大更多,设计更应引起足够重视。
Discontinuous basement floor includes the floor of big holes,splitting floor and setting up post-pouring belt.Finite element model was built to analyze the influence of discontinuous basement floor on the internal force of members in detail. The following conclusions are drawn from the analysis: when floor opens wide hole and the ratio of hole' s length and hole's margin( L/S) is greater than 1,splitting floor or setting up post-pouring belt,the finite element software,which can consider the floor deformation,should be used to calculate member forces. When splitting floor or setting up post-pouring belt,the force of the middle members increases much more. More attention should be paid during the design.
出处
《建筑结构》
CSCD
北大核心
2017年第S2期154-158,共5页
Building Structure
关键词
地下室楼板不连续
大开洞
错层
施工后浇带
discontinuous basement floor
big hole
splitting floor
post-pouring belt
