砼框架结构在小震下失效及相关性分析

An Analysis of Failures and Failure Dependencies of the RC Frame Structures

采用Pushover方法,通过大量的MonteCarlo随机模拟分析,研究了框架结构在地震作用下的失效相关性问题,得出了在小震和强柱弱梁情况下框架梁的失效规律及相关性规律.分析了在小震和强柱弱梁情况下框架结构的可能失效部位,指出在小震和强柱弱梁情况下,各约束之间失效相关性是可以忽略不计的,从而验证了"在小震下框架结构截面约束失效服从失效独立性假设"这一结论的正确性.

By means of the Pushover method and the Monte Carlo random analysis, This paper andyzes the lapse relativity problem of frame construction under earthquake.Some failure and failure dependency rules of the RC frame beams under the small earthquakes are obtained. And the possible positions of frame beams under small earthquakes are pointed out.It indicates that the lapse relativity of between constraints can be neglected. It is validated that the failure dependencies hypothesis that the section restrictions of the RC frame obey the failure independency is correct. 