| 基于时变可靠度的桥梁加固经济性评估 |
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| 引用本文： | 徐家云,邓志勇.基于时变可靠度的桥梁加固经济性评估[J].自然灾害学报,2005,14(5):162-165. |
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| 作者姓名： | 徐家云 邓志勇 |
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| 作者单位： | 武汉理工大学,土木工程与建筑学院,湖北,武汉,430070 |
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| 摘 要： | 桥梁随着使用年数的增加,其性能逐渐退化.为了延长结构的使用寿命,最大限度发挥桥梁的剩余价值,需要对桥梁结构进行维修加固.桥梁加固维修决策主要以安全、经济分析为依据,给出了3种以时变可靠度及桥梁剩余寿命为基础的决策方案,并对这3种方案进行了经济效益分析.
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| 关 键 词： | 时变可靠度 桥梁加固 经济分析 |
| 文章编号： | 1004-4574(2005)05-0162-04 |
| 修稿时间： | 2005年8月10日 |
Economy analysis of bridge strengthening based on time-varying reliability |
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| XU Jia-yun,DENG Zhi-yong.Economy analysis of bridge strengthening based on time-varying reliability[J].Journal of Natural Disasters,2005,14(5):162-165. |
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| Authors: | XU Jia-yun DENG Zhi-yong |
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| Abstract: | With increase of the service life,the carrying ability of the bridge degenerates gradually.In order to prolong the structure service life and make full use of the surplus value of the bridge,the bridge structure needs to repair and strengthen.But making a decision on bridge strengthening depends on economy analysis.This paper develops three methodologies for bridge strengthening based on time-varying reliability and makes economy analysis of the three ones. |
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| Keywords: | time-varying reliability bridge strengthening economy analysis |
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