| 计算结构首次穿越时间概率密度函数的新方法 |
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| 引用本文： | 郑春林,陈婕,何军,寇新建.计算结构首次穿越时间概率密度函数的新方法[J].地震工程与工程振动,2006,26(4):52-55. |
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| 作者姓名： | 郑春林 陈婕 何军 寇新建 |
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| 作者单位： | 上海交通大学,建筑工程学院土木工程系,上海,200240 |
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| 基金项目： | 国家自然科学基金项目(50478017) |
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| 摘 要： | 本文在M adsen等提出的积分方程方法基础上,采用单点FORM方法计算结构首次穿越问题中的条件穿越率、联合穿越率及首次穿越时间概率密度。提出的新方法计算简单,结果精确,适于进行脆性结构的首次穿越破坏分析。
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| 关 键 词： | 首次穿越破坏 平均穿越率 首次穿越时间概率密度 可靠度 |
| 文章编号： | 1000-1301（2006）04-0052-04 |
| 收稿时间： | 2005-05-20 |
| 修稿时间： | 2005-05-202006-01-08 |
A new method for first-passage time probability density function of structures |
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| Zheng Chunlin,Chen Jie,He Jun,Kou Xinjian.A new method for first-passage time probability density function of structures[J].Earthquake Engineering and Engineering Vibration,2006,26(4):52-55. |
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| Authors: | Zheng Chunlin Chen Jie He Jun Kou Xinjian |
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| Affiliation: | Department of Civil Engineering, School of Building Engineering, Shanghai Jiaotong University, Shanghai 200240, China |
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| Abstract: | Based on the integral equation method,which is presented by Madsen and so on,the conditional upcrossing rate,the joint upcrossing rate and the first-passage time probability density are obtained by use of single-point FORM method for first-passage of structures.The present method is suitable to analyze the first-passage failure of brittle structures due to its simple calculation and accurate result. |
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| Keywords: | first-passage failure mean crossing rate firstpassage time probability density reliability |
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