| 焊接钢结构地震下基于低周疲劳特性的破坏准则的探讨 |
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| 引用本文： | 姚国春,霍立兴,张玉凤. 焊接钢结构地震下基于低周疲劳特性的破坏准则的探讨[J]. 钢结构, 2000, 15(2): 58-60 |
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| 作者姓名： | 姚国春 霍立兴 张玉凤 |
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| 作者单位： | 天津大学 天津 300072 |
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| 基金项目： | 国家自然科学基金!59975066 |
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| 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．
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| 关 键 词： | 焊接钢结构 低周疲劳特性 破坏准则 |
| 修稿时间： | 2000-01-14 |
RESEARCH ON DAMAGE CRITERIA OF WELDED STEEL STRUCTURE UNDER EARTHQUAKE BASED ON LOW-CYCLE FATIGUE CHARACTERISTICS |
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| Yao Gouchun,Huo Lixing,Zhang Yufeng. RESEARCH ON DAMAGE CRITERIA OF WELDED STEEL STRUCTURE UNDER EARTHQUAKE BASED ON LOW-CYCLE FATIGUE CHARACTERISTICS[J]. Steel Construction, 2000, 15(2): 58-60 |
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| Authors: | Yao Gouchun Huo Lixing Zhang Yufeng |
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| Affiliation: | Tianjin University Tianjin 300072 |
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| Abstract: | 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. |
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| Keywords: | welded steel structure low-cycle fatigue characteristics damage criteria |
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