摘要
从震害实际情况出发,采用柱铰破坏模式进行了在地震作用下框架发生层倒塌的失效概率分析,并通过基于位移的模型研究了框架结构大震相对于小震的剪力放大系数的数值,进一步研究随着地震作用的加大框架发生层倒塌失效概率的变化情况,探讨了通过提高柱端抗弯强度来降低大震时层倒塌失效概率的方法。
Considering the actual situation of earthquake,the column hinge failure mode is adopted to conduct the failure probability analysis on the frame layer collapse under seismic effect,and the shear amplification coefficient of frame structure that rare earthquake relative to frequent earthquake is studied through the mode based on displacement.Further exploration is made on the change of frame layer collapse＇s failure probability responding to the increase of seismic effect.The method is discussed to lower the failure probability of layer collapse in rare earthquake by improving bending strength of column ends.
出处
《工程抗震与加固改造》
北大核心
2013年第6期36-40,共5页
Earthquake Resistant Engineering and Retrofitting
关键词
柱铰模式
层倒塌
失效概率
剪力放大系数
column hinge mode
layer collapse
failure probability
shear amplification coefficient
