摘要
旨在提供不同使用年限建筑结构对应的活荷载水平。分析了结构可靠度理论的特点,揭示了设计使用年限是结构可靠度的时间特征。应根据不同设计使用年限活荷载的超越概率等于常规设计荷载超越概率的原则确定活荷的载标准;通过建立不同设计使用期、不同设计基准期与活荷载取值的关系,给出了不同使用年限对应活荷载与灾害荷载设防水平。
This paper aims at to offer characteristic values of structure′s live loads corresponding to various working life. Structural reliability characters are analyzed, and it is shown that working life is characters of structural reliability in time. The live load should be determined that the exceedance probabilities of live load for different design working life equal to that for conventional design loads. Besed on the relationship built between different design working life,different design reference period and live load characters,the characteristic values of live loads and disaster loads of structures for different working life are given in light of equivalent exceedance probability criterion.
出处
《自然灾害学报》
CSCD
北大核心
2005年第3期124-129,共6页
Journal of Natural Disasters
基金
国家"十五"科技攻关项目(2002BA806B-4)
关键词
结构可靠度
活荷载
等超概率原则
设计基准期
设计使用期
structural reliability
live loads
equivalent exceedance probability criterion
design reference period
design working life
