钢筋混凝土柱在随机荷载作用下的可靠性分析

本文利用可靠度理论的概率公式，并在结构失效概率计算技术的基础上，探讨了承受多种连续可变作用荷载过程的钢筋混凝土柱失效概率的计算技术，其具体方法是采用分段连续线性化极限状态方程，对非线性问题进行简化，这种方法可减少砼结构非线性分析的计算工作。对偏心受压的钢筋砼柱进行实例典型分析表明，采用线性化和高斯过程，得出的远交率的简单计算方法是可行的，并显示了作用荷载及其效应和结构抗力的随机性质。

Failure Probabiliy of Reinforced Concrete Cloums under Stochastic Loads

Based on the reliablity theory,a Method of Calculating the failure probability of the reinforced concrete Colums under the combined actions of bending moment and axial force when the applied laods are time-variant processes are presented.This method is to simplify the non linear frnction by piece linearization of the limit state equation and the use of Gaussian processes.An example is given to illustrate the Opproach,which shows the feasibility to simplify the calculation of the ontorossing rate and shows the stochastic feature feature of the bending moment and axial froce for the reinforced concrete colums.