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1 概述随着我国水利建设事业的不断发展 ,已存水利工程的维修、加固和改造任务日益繁重。对已存水工结构进行维修、加固和改造需要对已存水工结构的可靠性进行分析和鉴定。结构的可靠性在可靠度理论中用可靠指标 β来表示 ,其计算公式是建立在结构的抗力、荷载效应和功能函数?
1 Overview With the continuous development of water conservancy construction in China, the tasks of maintenance, reinforcement and reconstruction of existing water conservancy projects are becoming more and more heavy. It is necessary to analyze and identify the reliability of existing hydraulic structures for maintenance, reinforcement and reconstruction of existing hydraulic structures. The reliability of the structure is expressed in terms of the reliability index β in the reliability theory. The calculation formula is based on the structure resistance, load effect and function.