【摘要】 地震时,楼梯是重要的逃生通道。但关于地震作用下楼梯与框架共同工作方面的研究还很少,文章采用结构有限元软件Midas/Gen,对一个6层钢筋混凝土现浇板式楼梯框架办公楼模型进行分析,对模型在地震作用下的受力情况进行了详细研究,与传统楼梯设计方法(楼梯间结构不考虑地震作用,结构处楼梯间开洞)结构地震反应做对比。结果表明:考虑楼梯参与结构整体计算会增加结构的抗侧刚度,且结构扭转效益增大,总体对结构不利。更多还原

【Abstract】 The researches on performance of frames with stairs under earthquake are scarce.In this paper,an analysis of a six-floor reinforced concrete frame structure with cranked slab stairs was carried out using the finite element software Midas/Gen for model structure.Compare with the traditional design method of stairs(staircase structure is not considered earthquake,the structure at the stairwell openings) seismic response.The results showed that:the whole structure into account in calculating the stairs will increase the lateral stiffness of the structure,increase efficiency and torsion,the overall structural disadvantage.更多还原