HAZUS相容的钢筋混凝土框架结构地震易损性分析  

HAZUS-COMPATIBLE SEISMIC FRAGILITY ANALYSIS FOR RC FRAME STRUCTURES

作　　者：于晓辉[1] 吕大刚[1] 

机构地区：[1]哈尔滨工业大学,结构工程灾变与控制教育部重点实验室,哈尔滨150090

出　　处：《工程力学》2016年第3期152-160,共9页Engineering Mechanics

基　　金：国家自然科学基金项目(51378162,51408155);国家科技支撑计划课题项目(2013BAJ08B01);黑龙江省博士后面上基金项目(LBH-Z14114);中国高校基本科研业务费专项资金项目(HIT.NSRIF.2015099);中国博士后科学基金面上项目(2014M551251)

摘　　要：HAZUS作为一款多灾害损失评估软件,在世界范围内得到了广泛应用。确定结构的地震易损性函数是HAZUS软件进行地震损失评估的关键。然而,现有的传统地震易损性分析结果无法满足HAZUS的格式要求。为此,该文提出一种与HAZUS相容的地震易损性分析的简化方法,该方法直接利用传统的地震易损性分析结果,通过能力谱方法确定地震动记录的谱位移作为其参数,转化得到满足HAZUS格式要求的地震易损性结果。为说明该文提出的方法,选择4个不同高度的钢筋混凝土框架结构作为算例,并将该文方法的分析结果与HAZUS软件提供的地震易损性曲线进行对比。结果表明:由于分析方法和分析对象的不同,HAZUS相容的地震易损性结果与HAZUS软件所提供的地震易损性结果之间存在较为明显的差异。As a kind of multi-disaster loss assessment software, HAZUS is world-widely used. Determining the seismic fragility functions of structures is the key issue of HAZUS to conduct seismic loss assessment. However, traditional seismic fragility results cannot match the format requirement of HAZUS. In light of this, this paper presents a simplified approach to derive the HAZUS-compatible seismic fragility curves. This method directly uses the traditional seismic fragility results and transforms them to the HAZUS format through employing the capacity-diagram method to determine parameters in terms of spectral displacements for used ground motion records. To illustrate the proposed method, four RC frame structures of various heights are selected as study cases, and the results by the proposed method and those by the HAZUS-provided fragility curves are compared. Results show that the HAZUS-compatible seismic fragility results have significant difference from HAZUS-provided seismic fragility curves since they adopt different analysis methods and face to different study objectives.

关 键 词：地震易损性 HAZUS 钢筋混凝土框架结构 地震损失 能力谱方法 

分 类 号：TU375.4[建筑科学—结构工程]