(1 西安建筑科技大学土木工程学院，西安 710055； 2 中冶置业重庆有限责任公司，重庆 400015)
［摘要］列举了汶川地震中都江堰市某在建工程和东方汽轮厂档案楼等框架结构中的楼梯震害，分析了框架结构中楼梯的地震作用，揭示了梯段破坏和梯梁剪切破坏的形成原因。指出框架结构底层楼梯设计时必须要考虑地震影响，并应立足于结构整体模型分析其受力。最后给出了楼梯结构抗震设计的保证措施，供设计参考。
［关键词］框架结构；楼梯；震害；抗震设计
Earthquake damage analysis and design strategy on stairs of frame structures
Shen Yuekui1, Zhang Tao2, Wang Wei1(1 College of Civil Engineering, Xi’an Architecture & Technology University, Xi’an 710055, China；2 MCC Real Estate Chongqing Co., Ltd., Chongqing 400015, China)
Abstract:Some types of stair damage caused by Wenchuan Earthquake in frame structures were presented. The seismic response of stairs was studied by concept analysis and calculation. And how the stair-plate is broken and the stair-beam is destroyed were explained. It suggests that the effect of the earthquake on stairway should be analyzed by entirety structural model, which can be chosen to design the stair component. Some measures are proposed to guarantee the stairs capacity to resist earthquake.
Keywords:frame structure; stair; earthquake damage; anti-earthquake design
作者简介：申跃奎，博士，副教授，一级注册结构工程师，Email:ykshen129@126.com。
参考文献
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