随机时变静力可靠度下的钢筋混凝土短柱风险分析

考虑了钢筋混凝土结构由于荷载因素、环境因素及材料自身因素的影响所带来的抗力随机时变性，采用了指数模型（EFM）近似处理时变抗力的衰减函数，并分别计算出设计基准期T内抗力衰减过程中的风险率。在此基础上，对受静力荷载下的钢筋混凝土短柱进行了风险分析，进而阐明了构件抗力时变性对构件的风险率产生了不可忽视的影响。

Risk Analysis of Reinforced Concrete Short Column Based on Random Time-dependent Static Reliability

Due to the influence of load,environment and material oneself factors,the resistance of reinforced concrete structure is time dependent.The Exponent Function Model(EFM) is used to approximately handle the attenuation function of the random time-dependent structure resistance,and evaluate separately the risk probabilities in the course of resistance attenuation during the design datum duration T.On this basis,a risk analysis is made on the reinforced concrete short column acted upon by a dead load;and then it expounds that the time-dependent property of structure resistance make an influence not to be ignored to the risk probability of element.