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（合肥工業(yè)大學(xué)土木與水利工程學(xué)院，合肥 230009）
[摘要]汶川大地震后，由于地震帶來的巨大經(jīng)濟(jì)損失，對抗震性能的優(yōu)化設(shè)計不斷研究，使得結(jié)構(gòu)設(shè)計在原有承載力設(shè)計的基礎(chǔ)上更加注重性能的要求，注重建筑結(jié)構(gòu)的安全性和經(jīng)濟(jì)性協(xié)調(diào)。在未來時間中結(jié)構(gòu)遭受不同等級的地震作用時，結(jié)構(gòu)的初始成本和地震損失值之間達(dá)到最優(yōu)化的狀態(tài)，這就是“投資-效益”準(zhǔn)則?；谶@一準(zhǔn)則，利用可靠度分析理論，對結(jié)構(gòu)抗震性能進(jìn)行優(yōu)化設(shè)計。
[關(guān)鍵詞]抗震性能;“投資-效益”準(zhǔn)則；可靠度；約束條件
中圖分類號：TU352.11 文獻(xiàn)標(biāo)識碼：A 文章編號：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
