摘要
作为结构抗震设计的发展方向 ,近年来基于功能的结构抗震设计思想引起了地震工程界的广泛重视 ,并取得了迅速发展 ,其基本思想就是在充分考虑结构抗震设计中的不确定性的情况下 ,采用基于“投资—效益”准则和强调结构“个性”的设计。本文讨论了基于可靠度和功能的结构抗震优化设计思想 ,建立了钢筋混凝土框架 -剪力墙结构的抗震优化设计模型 ;给出了结构可靠度的近似计算方法 ,最后计算了钢筋混凝土框架 -剪力墙的算例。
As the development tendency for structural seismic design, the concept of performance based seismic design has drawn more and more attentions in the field of earthquake engineering and undergone a lot of developments in recent years. The basic idea of performance based seismic design is the optimization design based on cost-effectiveness criteria, considering the structural 'individuality' and the uncertainties in the seismic design. The theory and methodology of reliability and performance based optimization design for seismic high-rise structures are studied in the present paper. The optimization design formula for seismic RC frame-wall structures is established, and the simplified approximate approach to calculate structural reliability is proposed. Finally, the seismic optimization design for high-rise RC frame-wall structure is carried out.
出处
《计算力学学报》
CAS
CSCD
北大核心
2001年第3期290-294,370,共6页
Chinese Journal of Computational Mechanics
基金
国家自然科学基金资助项目 (5 9895 41 0 )
国家自然科学基金资助项目 (5 0 0 0 80 0 3 )
关键词
结构可靠度
结构优化设计
结构抗震设计
功能
框架-剪力墙结构
structural reliability
structural optimization design
structural seismic design
Performance-based design
frame-wall structures
