基于楼层响应-损失函数的建筑物地震损失评估研究  

EARTHQUAKE LOSS EVALUATION OF BUILDINGS BASED ON STORY EDP-DV FUNCTIONS

作　　者：贾兆平[1] 吴子燕[1] 王其昂[1] 

机构地区：[1]西北工业大学力学与土木建筑学院,西安710129

出　　处：《工业建筑》2014年第7期51-55,111,共6页Industrial Construction

基　　金：国家自然科学基金项目(51278420);西北工业大学基础研究基金项目(JCY20130125);西北工业大学研究生创业种子基金资助项目(Z2014114)

摘　　要：为简化传统基于性能的地震损失评估流程,提出基于楼层响应-损失函数的建筑物地震损失评估方法。该方法考虑结构地震响应参数的随机性,通过增量动力分析得到在给定地震强度水平下,楼层响应的分布函数;由经验数据得到的构件响应易损性函数和损失函数建立楼层响应-损失函数,省略损伤分析且以楼层而非构件为计算单位来简化损失评估过程;将前述楼层响应的分布函数与楼层响应-损失函数结合,不需要划分结构性能水平而建立建筑物地震强度-经济损失曲线。数值算例证明,该方法作为建筑物抗震性能量化方法是可行和合理的。In order to simplify the performance-based earthquake loss evaluation process , the paper puts forward the method of earthquake loss evaluation of buildings based on story engineering demand parameter -decision variable （ EDP-DV） functions .Firstly, when considering the randomness of seismic response parameters , it can be achieved the distribution functions of story response parameters with the intensity measure given through incremental dynamic analysis .Meanwhile , the fragility functions are combined with loss functions to establish story EDP-DV functions .On this occasion , the damage measures are omitted and the storey not component is made to be a unit of account to simplify the earthquake loss evaluation process .Lastly, the relational function is established which is between seismic intensity and the buildings ’ economic loss by combing the distribution functions of story response with story EDP-DV functions.It is no need for dividing performance levels .The numerical example shows that the proposed method is feasible and reasonable to quantify the building ’ s seismic performance .

关 键 词：基于性能 地震损失评估 楼层响应-损失函数 分布函数 增量动力分析 

分 类 号：TU352.11[建筑科学—结构工程]