摘要
介绍了结构地震下的几种破坏准则，并归纳了焊接钢结构的两种破坏准则：首超破坏准则和累积损伤破坏准则，给出统一两种破坏准则的基于低周疲劳特性的以等效延性为主要参数的表达式．最后简单介绍了结合破坏准则的焊接钢结构梁柱节点的抗震试验．
Some criteria of damagr about strocture under earthquake are introduced in this paper. Two types of damage criteria of welded steel structure are summarized: first passagr failure and cumulative damage failure. An expression that can unify the two damagr criteria in which equivalent ductility is taken as the main parameter is proposed based on the low-cycle fatigue charasteristics. Finally, based on the damage criteria, earthquake- resistalt experiment of the column- to-beam joints of welded steel structure is simply introdoced.
出处
《钢结构》
2000年第2期58-60,共3页
Steel Construction
基金
国家自然科学基金!59975066
关键词
焊接钢结构
低周疲劳特性
破坏准则
welded steel structure low-cycle fatigue characteristics damage criteria
