框架结构抗震设计中楼梯间设置滑动支座的进一步分析

Further Analysis of Installing Sliding Support in Staircase in Seismic Design of Frame Structure

地震时,楼梯是重要的逃生通道。文章以地震中楼梯结构实际震害调查结果为基础,在震害分析研究的基础上,说明了楼梯应进行抗震设计的必要性。梳理了现有的两种楼梯抗震设计的基本思路,并对楼梯间设置滑动支座做了进一步的分析讨论,提出了有利于改善滑动支座受力性能的构造做法。

The paper,based on the findings of actual earthquake damage survey of the staircase structure,the analysis and study of earthquake damage,indicated the necessity of seismic design for stairs.And also it sorted out the basic idea of seismic design of two existing stairs,further discussed the setting of sliding bearings for staircases,and proposed the sliding bearing construction practices which will help to improve the mechanical properties of sliding bearing.