| 三峡升船机结构的风载可靠性分析 |
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| 引用本文： | 任晓崧.三峡升船机结构的风载可靠性分析[J].同济大学学报(自然科学版),1998,26(2):221-225. |
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| 作者姓名： | 任晓崧 |
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| 作者单位： | 同济大学结构理论研究所!上海，200092 |
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| 基金项目： | 国家“八五”科技攻关资助!85-16-03-07-13 |
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| 摘 要： | 研究了三峡升船机结构的风载可靠性分析方法．采用极值分布模型模拟风的年l0min平均最大风速记录，确定了风荷载的概率模型根据人体反应，确定无感振动作为首次穿越分析的基本状态．假定结构响应和控制点的极限值是随机变量，利用Rosenblatt变换为正态分布，从而求出结构的可靠度，并利用Monte-Carlo模拟方法作了对比分析．
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| 关 键 词： | 可靠度 首次穿越 无感振动 极值分布 Rosenblatt变换 Monte-Carlo模拟 |
Reliability Analysis of Shiplifting Structures of Three Gorges under Wind Load |
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| Ren Xiaosong.Reliability Analysis of Shiplifting Structures of Three Gorges under Wind Load[J].Journal of Tongji University(Natural Science),1998,26(2):221-225. |
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| Authors: | Ren Xiaosong |
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| Abstract: | This paper studies the reliability analysis of shiplifting structure of Three Corges under wind load. Differentextreme asymptotic distribution models are used to create the probability model of wind to simulate the annual 10minute maximum wind speed. According to the human response, imperceptible vibration is selected as the foot state offirst excursion. Assuming the structural response and the limit respoase of key point as random variables, Rosenblatttransform is used for nounal distributions to calculate the structural reliability. Moreover Monte-Carlo simulationmethod is presented for comparison. |
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| Keywords: | Reliability First excursion Imperceptible vibration Extreme asymptotic distribution Rosenblatt trans form Monte-Carlo simulation |
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