（合肥工业大学土木与水利工程学院，合肥 230009）

[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。

[关键词]抗震性能;“投资-效益”准则；可靠度；约束条件

中图分类号：TU352.11      文献标识码：A      文章编号：1002-848X(2013)S1-1250-04

Optimum design and application of structure based on reliability and performance  

Huang Shenjiang, Wang Fengyun

(School of Civil and Hydraulic Engineering, Hefei University of Technology, Hefei 230009, China)

Abstract: 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.

Keywords: seismic performance; cost-benefit criterion; reliability; constraint condition