【摘要】 提出"次中震"的概念,将"小震、次中震、中震、大震"四级地震水准与"轻微破坏、中等破坏、严重破坏、倒塌"四级整体极限状态相对应,提出多级力控制Pushover方法。考虑结构的随机性,将蒙特卡洛模拟法与多级力控制Pushover方法相结合,提出多级力控制随机Pushover方法。将该法应用于钢筋混凝土框架结构,得到结构整体抗震能力易损性曲线。更多还原

【Abstract】 A new concept of "sub-moderate earthquake" is proposed,and then a multi-level force controlled pushover method is put forward,which builds up the corresponding relationships between four levels of seismic fortification (namely,minor,sub-moderate,moderate and major earthquakes) and four levels of global limit states of structures(namely,minor damage,moderate damage,severe damage and collapse).To consider the randomness in structures,a multi-level force controlled random pushover method is put forward,which combines Monte Carlo Simulation method with multi-level force controlled pushover approach.The proposed method is applied to a R.C.frame structure,for which the fragility curves of the global seismic capacity of the structure are obtained.更多还原