含裂纹构件无限寿命设计可靠度计算方法  

The calculation method of design reliability of unlimited life-span members with crack

作　　者：武春廷[1] 胡寿康[1] 马卫华[1] 

机构地区：[1]河北理工大学建筑工程学院,河北唐山063009

出　　处：《世界地震工程》2006年第1期151-156,共6页World Earthquake Engineering

摘　　要：详细讨论了ΔK、ΔKth的分布特性,提出了适用于含裂纹构件无限寿命可靠性分析与设计的ΔK—ΔKth干涉模型,给出了承受交变载荷的构件中初始裂纹不继续扩展的可靠度,并在给定的可靠度下,确定出构件中所允许的最大初始裂纹尺寸。After detail discussion on the distribution characteristics of △K and △Kth, interfering model of △K - △Kth is proposed, which is suitable for the reliability analysis and design of unlimited life-span cracking members. The reliability of initial non-extending crack of the members under repeated load is determined. With the given reliability, the allowable maximum of the initial crack dimension of the members is calculated.

关 键 词：无限寿命设计 含裂纹构件 可靠度 

分 类 号：P315[天文地球—地震学]