| 既有结构已服役荷载对可靠度评估结果的验证影响 |
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| 引用本文： | 索清辉,钱永久,伍建强,段敬民.既有结构已服役荷载对可靠度评估结果的验证影响[J].计算力学学报,2007,24(3):323-327. |
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| 作者姓名： | 索清辉 钱永久 伍建强 段敬民 |
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| 作者单位： | 西南交通大学,土木工程学院,成都,610031 |
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| 基金项目： | 高等学校优秀青年教师教学科研奖励计划 |
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| 摘 要： | 服役荷载的验证作用影响既有结构的抗力分布,进而影响结构可靠度评估结果。文章利用的时变可靠度理论,给出了一个时变可靠指标简化计算公式,分析了服役荷载的验证作用,同时考虑了抗力衰减、结构已服役时间以及恒荷载效应与可变荷载效应比值等因素影响。
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| 关 键 词： | 验证荷载 已服役荷载 抗力分布 时变可靠度 |
| 文章编号： | 1007-4708（2007）03-0323-05 |
| 修稿时间： | 2005-02-15 |
Proof influence of prior service load to the existing structure reliability |
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| SUO Qing-hui,QIAN Yong-jiu,WU Jian-qiang,DUAN Jing-min.Proof influence of prior service load to the existing structure reliability[J].Chinese Journal of Computational Mechanics,2007,24(3):323-327. |
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| Authors: | SUO Qing-hui QIAN Yong-jiu WU Jian-qiang DUAN Jing-min |
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| Institution: | School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | The distribution function of resistance can be influenced by the prior service loads and which can increase the ability of the existing structures.The proof influence of dead load is prior to that of live load according to the property of dead load and live load,in the paper the proof influence is analyzed which taking into account the ratio between characteristic values of the dead load and live load,prior service period and the degradation of resistance. |
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| Keywords: | proof load prior service load the distribution function of resistance time-dependent reliability |
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