全框支剪力墙结构层间刚度比及受剪承载力比分析
ANALYSIS ON STORY LATERAL STIFFNESS RATIO AND SHEAR CAPACITY RATIO OF COMPLETE FRAME-SUPPORTED SHEAR WALL STRUCTURES
周越洲 1许名鑫 1陈帆 1肖中岭 2黄妙英2
作者信息
- 1. 华南理工大学建筑设计研究院有限公司,广州 510641
- 2. 越秀地产股份有限公司,广州 510627
- 折叠
摘要
由于使用功能原因轨道交通车辆基地全框支剪力墙结构首层层高突变,导致首层与上一层(一般为转换层)的刚度比和受剪承载力比突变,而且超出规范限值较多.文中对现行规范关于楼层侧向刚度和受剪承载力的计算方法进行了讨论,对水平荷载作用下全框支剪力墙底部框架的受力特点进行分析,指出上述楼层侧向刚度和受剪承载力的计算方法不适用于全框支剪力墙结构.建议在保证上部剪力墙先于底部框支框架屈服的前提下,不控制车辆基地全框支剪力墙结构首层与2层的层间刚度比和受剪承载力比.
Abstract
During the service of transportation,sudden change to the height of vehicle base's ground floor leads to the significant variation of stiffness and shear capacity in complete frame-supported shear wall structure,which sub-stantially exceeds the standard.After the discussion on the calculation methods for lateral stiffness and shear capaci-ty in current code,we analyze the mechanic characteristics of bottom frame in complete frame-supported shear wall structure under horizontal loads,indicating the calculation methods above are inapplicable on complete frame-sup-ported shear wall structure.It suggests that,in the precondition when upper shear wall yield before bottom frame structure,lateral stiffness ratio and shear capacity ratio of first and second floor are not necessary to satisfy the speci-fication.
关键词
车辆基地/全框支剪力墙结构/层刚度比/层间受剪承载力比Key words
base for the vehicle/complete frame-supported shear wall structure/story lateral stiffness ratio/story shear capacity ratio引用本文复制引用
出版年
2024
NETL
NSTL
万方数据