桥式起重机焊接梁疲劳强度极限状态可靠性分析  

Reliability analysis of fatigue strength's limiting state of welding beam for OTC

作　　者：翟甲昌[1] 王怀建[1] 

机构地区：[1]大连理工大学机械工程系

出　　处：《大连理工大学学报》1992年第5期615-618,共4页Journal of Dalian University of Technology

摘　　要：It is a great progress to determine fatigue strength of OTC’s steel structure from using the method of definite allowable stress of the largest stress to using the design method of stress value probability of limiting state. The authors first introduce the principle of probability method and then give statistics of the regular patterns and the parameters which both belong to the resistance and the load-carrying effect of OTC; and also recommend the reliable norms and practical design formula. As a result, the fatigue design for cranes steps forward with a large pace.It is a great progress to determine fatigue strength of OTC's steel structure from using the method of definite allowable stress of the largest stress to using the design method of stress value probability of limiting state. The authors first introduce the principle of probability method and then give statistics of the regular patterns and the parameters which both belong to the resistance and the load-carrying effect of OTC; and also recommend the reliable norms and practical design formula. As a result, the fatigue design for cranes steps forward with a large pace.

关 键 词：桥式起重机 极限强度法 概率 

分 类 号：TH215[机械工程—机械制造及自动化]