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．
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.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
1998年第2期221-225,共5页
Journal of Tongji University:Natural Science
基金
国家"八五"科技攻关资助!85-16-03-07-13
关键词
升船机
结构
风荷载
可靠性分析
三峡工程
Reliability
First excursion
Imperceptible vibration
Extreme asymptotic distribution
Rosenblatt trans form
Monte-Carlo simulation
