| 灾害荷载下弹塑性结构体系可靠度的近似计算 |
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| 引用本文： | 蔡文学,程耿东.灾害荷载下弹塑性结构体系可靠度的近似计算[J].大连理工大学学报,1996(1). |
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| 作者姓名： | 蔡文学 程耿东 |
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| 作者单位： | 大连理工大学工程力学研究所 |
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| 摘 要： | 引入荷载粗糙度来描述荷载作用效应与结构抗力离散程度的相对关系；在参考有关文献对灾害荷载作用的统计特征进行分析后，指出灾害荷载作用可处理为无限粗糙的荷载作用；结合失效图分析得出弹塑性结构在无限粗糙荷载作用下的体系可靠度可近似由结构最弱失效路径决定．最后通过算例验证了文中的结论．
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| 关 键 词： | 载荷 结构可靠性／灾害荷载 |
Reliability of structural system under hazard action |
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| Cat Wenxue,Cheng Gengdong.Reliability of structural system under hazard action[J].Journal of Dalian University of Technology,1996(1). |
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| Authors: | Cat Wenxue Cheng Gengdong |
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| Abstract: | Loading roughness index is introduced to describe. the relative comparison between load effects and structural resistance.A conclusion has been drawn that hazard action can be treated as an infinite rough load according to its stochastic character.On the basis of this conclusion, reliability of structural system can be approximately determined by the weakest failure path in the failure graph.How to search the weakest failure path is also presented. |
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| Keywords: | loads structural reliability/hazard loads |
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