Failure and correlation analysis of concrete frame structure under small earthquake

Pushover method;  frame structure;  failure correlation;  Stochastic simulation

Using the Pushover method, through a large number of Monte Carlo stochastic simulation analysis, the failure correlation problem of frame structure under earthquake action was studied, and the failure law and correlation law of frame beam under the conditions of small earthquake and strong column and weak beam were obtained. The possible failure parts of the frame structure under the condition of small earthquake and strong column and weak beam are analyzed, and it is pointed out that the failure correlation between the constraints is negligible in the case of small earthquake and strong column and weak beam, which verifies the correctness of the conclusion that "the failure of the cross-section constraint of the frame structure under the small earthquake obeys the assumption of failure independence".