太平庄大桥E2地震作用分析及抗震性能评价  

The Analysis and Seismic Performance Evaluation of E2 Earthquake Action for Taipingzhuang Bridge

作　　者：马涛 

机构地区：[1]山西省交通规划勘察设计院,山西太原030006

出　　处：《山西交通科技》2017年第5期46-50,共5页Shanxi Science & Technology of Transportation

摘　　要：结合山西省平定到阳曲高速公路太平庄大桥的工程设计实例,采用有限元分析程序Midas Civil,选取空间梁单元建立动力计算模型。采用多振型反应谱法分析该桥受E2地震作用在顺桥及横桥向产生的动力反应,并对桥墩进行了抗震性能评价。由分析结果可知E2地震作用下按能力保护构件设计的盖梁抗弯强度、桩基抗弯强度不满足要求;部分桥墩塑性铰区域抗剪能力不满足E2地震作用要求。Combined with the engineering design examples of Taipingzhuang Bridge, using the finite element analysis program Midas Civil, this paper selected the spacial beam elements to establish the dynamic calculation model. Using multi mode response spectrum method, it analyzed the dynamic response produced by E2 earthquake action of the bridge in longitudinal and transverse direction, and also carried out the seismic performance evaluation of bridge pier.

关 键 词：E2地震作用 反应谱法 能力保护构件 

分 类 号：U442.55[建筑科学—桥梁与隧道工程]