吉林大学学报(工学版) ›› 2021, Vol. 51 ›› Issue (4): 1296-1305.doi: 10.13229/j.cnki.jdxbgxb20200387
• 交通运输工程·土木工程 • 上一篇
Xue-ping FAN1,2(),Guang-hong YANG2,Qing-kai XIAO3,Yue-fei LIU1,2
摘要:
为合理分析大跨桥梁主梁的失效概率,考虑到多个控制监测点失效模式的相关性,提出了大跨桥梁主梁失效概率分析的信息融合新方法。利用极值应变信息,引入双变量Pair-Copula模型和R-Vine模型,结合多个控制监测点的功能函数,对监测点失效模式相关性进行最优Regular vine copula(R-Vine Copula)建模分析,融合一次二阶矩(FOSM)方法,进行失效模式相关的大跨桥梁主梁失效概率分析,通过在役桥梁监测数据对本文方法的合理性进行验证,并与其他分析方法进行比较。结果表明,考虑控制监测点失效模式相关性的大跨桥梁主梁失效概率分析的最优R-Vine Copula信息融合方法较为合理。
中图分类号:
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