胶接缝连接的节段拼装桥墩抗震分析模型  

Seismic Analytical Model of Segmental Bridge Column with Match-cast Epoxy Joints

作　　者：葛继平[1] 刘丰[1] 魏红一[1] 王志强[1] 

机构地区：[1]同济大学桥梁工程系,上海200092

出　　处：《武汉理工大学学报（交通科学与工程版）》2009年第5期880-883,共4页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学基金项目资助(批准号:50508032)

摘　　要：采用胶接缝连接的节段拼装预应力混凝土桥墩在地震荷载作用下会在接缝区域张开,出现不连续的现象.采用常规纤维模型分析方法对这一现象进行了有限元分析.计算结果与试验结果的对比表明,建议的用素混凝土短柱模拟胶接缝的方法,可以比较准确地预测低周反复荷载作用下采用胶接缝连接的节段拼装预应力混凝土桥墩的滞回特征.The match-cast epoxy joints of segmental bridge column will crack and open concentrating on the joints under earthquake loading, forming the nature discontinuities in the structure. The mechanical behavior of that was modeled with fiber element method. The comparison between the calculated results and the experimental results showed that, the method of considering the match-cast epoxy joints as the layer of plain concrete can accurately predict the hysterestic properties of segmental bridge column with match-cast epoxy joints and used in the parametic analysis and mechanism study.

关 键 词：无粘结预应力筋 胶接缝 预制拼装桥墩 非线性有限元分析 滞回性能 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]