混凝土框架结构不同楼梯构造方案抗震性能分析

The Analysis to Seismic Performance of Different Stair Construction Schemes in Concrete Frame Structure

在地震发生时,楼梯对人们逃生起着至关重要的作用。但从震后的灾害情况看,在混凝土框架结构中常会发生楼梯间构件被破坏的情况,甚至出现楼梯间整体倒塌的现象,丧失了应有的疏散功能。针对混凝土框架结构不同楼梯的构造方案进行了抗震性能分析,明确了混凝土框架结构楼梯的合理构造方案,为结构设计提供可靠的依据。

The stair is an important channel that plays a vital role in people's escape during the earthquake.However,from the post-earthquake disaster situation,staircase components often have been destroyed in the concrete frame structure,even with the phenomenon of the whole staircase collapsing,and then the proper evacuation function losses.In this paper,the seismic performance analysis has been made to different stair construction schemes in concrete frame structure,and the reasonable construction scheme of concrete frame structure stair has been defined to provide a reliable basis for the structure design.