摘要
在线弹性有限元法基础上将荷载与抗力作为随机变量,根据单元可靠指标计算公式编制了可靠度计算程序。通过对混凝土重力坝单元可靠度计算,分析了混凝土重力坝坝体可靠度分布规律、破损位置及失效概率。结果表明,该方法是混凝土重力坝安全评价的一种行之有效的方法。
Load and resistance are taken as stochastic variable and the program about reliability calculation is compiled based on linear elastic finite element method and formula for reliability index. Through the calculation of element reliability on concrete gravity dam. The probable failure position, probability and distribution features are also analyzed. The results show that this method is an effective way for safety assessment of concrete gravity dam,
出处
《水电能源科学》
北大核心
2009年第5期72-74,共3页
Water Resources and Power
基金
河南省科技创新杰出人才计划基金资助项目(094200510011)
河南省高校杰出科研人才创新工程基金资助项目(2006KYCX013)
关键词
混凝土重力坝
可靠度
随机有限元法
随机变量
极限状态
concrete gravity dam
reliability
stochastic finite element method
stochastic variable
limited state
