| 工程结构维护时间的决策研究 |
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| 引用本文： | 贾超,刘宁,陈进. 工程结构维护时间的决策研究[J]. 武汉大学学报(工学版), 2003, 36(6): 1-4,8 |
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| 作者姓名： | 贾超 刘宁 陈进 |
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| 作者单位： | 1. 河海大学土木工程学院,南京,210098
2. 长江科学院,湖北,武汉,430010 |
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| 基金项目： | 教育部科学技术研究重点资助项目，水利部科技创新资助项目(scx2002 09). |
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| 摘 要： | 回顾现有结构维护时间决策的准则问题,一般是偏向于从工程经济角度考虑问题,而对结构使用的安全性考虑得较少,针对上述决策准则的不足之处,综合考虑了结构的安全性和风险,提出了以正常使用极限状态的可靠指标作为维护时间的决策准则,并以南水北调工程丹江口水利枢纽的右联混凝土坝为例进行了维护时间的决策分析,并进行了随机有限元分析,指出了该坝需要维护的关键部位.
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| 关 键 词： | 结构 维护时间 决策 正常使用极限状态 可靠指标 南水北调工程 |
| 文章编号： | 1671-8844(2003)06-001-04 |
Studying of engineering structure maintenance time decision |
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| JIA Chao,LIU Ning,CHEN Jin. Studying of engineering structure maintenance time decision[J]. Engineering Journal of Wuhan University, 2003, 36(6): 1-4,8 |
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| Authors: | JIA Chao LIU Ning CHEN Jin |
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| Affiliation: | JIA Chao~1,LIU Ning~1,CHEN Jin~2 |
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| Abstract: | Reviewing and summarizing the existing theories for maintenance time decision, the shortages in them are analyzed, in which the economic factors is considered more than the safety factors. So in this paper from the point of security and risk cost the natural usage limit state reliability index is put forward as the maintenance time decision rule. Taking the right dam of Danjiangkou of the South-North Water Transfer Project (SNWTP) for example, the decision of maintenance time is analyzed. Finally, the stochastic finite element method (SFEM) is used to point out the key part for maintenance. |
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| Keywords: | structure maintenance time decision natural usage limit state reliability index South-North Water Transfer Project |
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