摘要
我国现行规范中对于框架、框架-剪力墙和剪力墙三种结构体系按不同框架倾覆力矩比例进行设计划分,但划分依据不明确。根据结构设计规范设计了8个不同框架倾覆力矩比例的框架-剪力墙结构模型,基于纤维模型使用PERFORM 3D程序对算例模型进行大震下的弹塑性时程分析,从多方面研究框架倾覆力矩比例对于结构整体抗震性能的影响。结果表明:框架倾覆力矩比例在15%～60%之间的框架-剪力墙结构的抗震性能并没有明显差异;而当框架倾覆力矩比例大于80%时,剪力墙无法成为框架-剪力墙结构的第一道抗震防线。
The design of frame,frame-shear wall and shear wall structure system is divided according to the ratio of frame overturning moment in current Chinese design code,but the basis is not clear.According to the structural design code,eight frame-shear wall structure models with different frame overturning moment ratio were designed.The elastic-plastic time-history analysis of these models was carried out using PERFORM 3 D program based on fiber model,and the influence of the frame overturning moment ratio on the seismic performance of the structure was studied from various aspects.The results show that,there is no significant difference in the seismic performance of frame-shear wall structures with frame overturning moment ratio between 15%~60%.When the frame overturning moment ratio is greater than 80%,the shear wall cannot be the first anti-seismic line in frame-shear wall structures.
作者
易伟建
周维伟
Yi Weijian;Zhou Weiwei(College of Civil Engineering,Hunan University,Changsha 410082,China)
出处
《建筑结构》
CSCD
北大核心
2019年第9期48-54,共7页
Building Structure
基金
国家自然科学基金资助(51338004)
关键词
框架-剪力墙结构
倾覆力矩
弹塑性时程分析
性能化设计
frame-shear wall structure
overturning moment
elastic-plastic time-history analysis
performance-based design
