基于可靠度的结构抗震性能优化设计与应用  

Optimum design and application of structure based on reliability and performance

作　　者：黄慎江[1] 王凤云[1] 

机构地区：[1]合肥工业大学土木与水利工程学院,合肥230009

出　　处：《建筑结构》2013年第S1期1250-1253,共4页Building Structure

摘　　要：汶川大地震后,由于地震带来的巨大经济损失,对抗震性能的优化设计不断研究,使得结构设计在原有承载力设计的基础上更加注重性能的要求,注重建筑结构的安全性和经济性协调。在未来时间中结构遭受不同等级的地震作用时,结构的初始成本和地震损失值之间达到最优化的状态,这就是"投资-效益"准则。基于这一准则,利用可靠度分析理论,对结构抗震性能进行优化设计。Because of the great financial losses in the Wenchuan earthquake,the optimization design of seismic performance have long been studying and more attention is paid on performance-based design and the balance between security and economical efficiency,comparing with the traditional design methodology. Reliability based structural optimization procedure under cost-benefit criterion should be employed. The cost-benefit criterion is the optimization of state between the initial cost of structure and the loss in the earthquake in the whole life cycle.

关 键 词：抗震性能 “投资-效益”准则 可靠度 约束条件 

分 类 号：TU352.11[建筑科学—结构工程]