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] 贾晓弟[1] 

机构地区：[1]河北理工大学,唐山063009

出　　处：《工业建筑》2005年第z1期225-228,共4页Industrial Construction

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 ΔK and ΔK th ,interfering model of K-ΔK th is proposed,which is suitable for the reliability analysis and design of unlimited lifespan cracking members.In member under exchanging load,the nonextending reliability of initial crack is determined.With given reliability,the allowable maximum of the initial crack dimension is calculated.

关 键 词：无限寿命设计 含裂纹构件 可靠度 

分 类 号：TU311.2[建筑科学—结构工程]