水平地震力作用下框架结构中楼梯的内力分析  

Analysis of the stress of stairs in frame structure with under horizontal earthquake action

作　　者：刘木禾[1] 张超[1] 

机构地区：[1]烟台大学土木工程学院,山东烟台264005

出　　处：《山西建筑》2016年第11期36-37,共2页Shanxi Architecture

摘　　要：利用SAP2000软件,建立了带有现浇整体式楼梯的混凝土框架结构模型,并对模型进行了振型分解法计算,分析了楼梯的内力分布情况,分析结果表明:在双向水平地震力作用下,梯井附近的平台板、梯板两侧连梁的位置以及梯板的四个角点附近在不同方向上会发生明显的应力集中,因此,楼梯对框架结构的影响在结构设计中不应忽略。SAP2000 software was used to build the model of concrete frame structure with monolithic cast-in-site stairs,and the modal analysis was carried out in order to analyze the stress distribution of the stairs. The analysis results show that stress concentration occurs on area of the platform boards around stair shaft,the beams on both sides of gang-boards,and four angular points of gang-boards in different direction under horizontal earthquake action. The effect of stairs on frame structure should be allowed for when conducting seismic design.

关 键 词：现浇楼梯 框架结构 应力分布 

分 类 号：TU375.4[建筑科学—结构工程]