首层架空带填充墙框架在大震下的失效概率分析  

Failure Probability Analysis of Frame Structure with First Floor Open and Infilled Walls under Rare Earthquake

作　　者：程志辉[1] 廖芮[1] 

机构地区：[1]华南理工大学建筑设计研究院,广州510641

出　　处：《广东土木与建筑》2017年第6期11-15,共5页Guangdong Architecture Civil Engineering

摘　　要：从震害实际情况出发,采用柱端脆性剪切破坏模式研究了地震作用下首层架空带填充墙框架发生层倒塌的失效概率,通过基于位移的设计方法计算研究了首层架空带填充墙框架结构大震对于小震的剪力放大系数,然后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,探讨了通过提高支柱抗剪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 brittle shear failure mode is adopted to study the failure probability on frame structure with first floor open and infilled walls＇ layer collapse under seismic effect,and the shear amplification coefficient of frame structure with first floor open and infilled walls that rare earthquake relative to frequent earthquake is calculated 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 shear strength of columns.

关 键 词：首层架空带填充墙框架 脆性剪切破坏模式 失效概率 剪力放大系数 

分 类 号：TU375.4[建筑科学—结构工程]