建筑结构学报2012，Vol.33Issue(6)：16-21,6.
基于构件重要性指标的RC框架结构抗震优化设计研究
Study on optimization of seismic design for RC frames based on member importance index
摘要
Abstract
A member importance index based on the generalized structural stiffness was introduced to optimize the seismic design of RC frames.The formula used to determine the capacity margin of structural members was proposed according to the system design strategy that the more important member should have larger capacity margin.The design strategy was aiming to realize the member damage sequence from less important members to the important ones.Based on the current safety margin value for ordinary members,the safety margin was suggested for members with different important indices.The proposed seismic design method and the conventional method of the current design code were compared through a case study of a RC frame.The results show that the proposed method significantly improves the seismic performance and slightly reduce the amount of steel reinforcement.关键词
结构系统设计/构件重要性指标/安全储备/RC框架结构/抗震设计Key words
structural system design/member importance index/safety margin/RC frame structure/seismic design分类
建筑与水利引用本文复制引用
林旭川,叶列平..基于构件重要性指标的RC框架结构抗震优化设计研究[J].建筑结构学报,2012,33(6):16-21,6.基金项目
国家自然科学基金重大研究计划重点项目 （）
清华大学自主科研计划项目 （）
