基于新型波纹管连接构造的预制拼装桥墩地震破坏机理的试验研究  

Experimental study on the seismic performance of a new connection design for precast bridge pier

作　　者：屈宏雅 肖纬 李田田 QU Hongya;XIAO Wei;LI Tiantian(Department of Bridge Engineering,Tongji University,Shanghai 200092,China;Shanghai Municipal Engineering Design Institute(Group)Co.,Ltd.,Shanghai 200092,China;Shanghai Typhoon Institute of China Meteorological Administration,Shanghai 200092,China)

机构地区：[1]同济大学土木工程学院桥梁工程系,上海200092 [2]上海市政工程设计研究总院(集团)有限公司,上海200092 [3]中国气象局上海台风研究所,上海200030

出　　处：《地震工程与工程振动》2020年第5期193-198,共6页Earthquake Engineering and Engineering Dynamics

基　　金：上海市2020年度“科技创新行动计划”自然科学基金面上项目(20ZR1461400)。

摘　　要：预制拼装桥梁在近年来获得了越来越多的关注,但连接构造的创新性上略显不足。本研究提出了一种新型的预制拼装桥墩连接构造,该连接构造对波纹管的材料及尺寸进行了重新设计并在连接处设置凹槽,以增加连接的强度与可靠性。通过两阶段的试验对连接构造的性能以及桥墩的地震破坏机理进行研究,并与现浇构件进行对比。实验结果表明,新型的连接构造能够保持较好的整体性,预制拼装桥墩与现浇桥墩的地震破坏机理与抗震性能类似。Precast bridges have drawn more attentions in recent years,while new designs are still in stagnant.In this study,a new connection design of the precast bridge is proposed,which consists of a new grouted corrugated steel duct design and a shallow recess.The new connection is then tested and verified by the pullout test of the duct design and the quasi-static test of the column specimens.It is concluded that the precast bridge column retains the seismic behavior and damage progressionsimilar tothe cast-in-place reference,and the connection region remains almost intact during the quasi-static test.

关 键 词：预制拼装 桥墩 灌浆波纹管 抗震设计 地震损伤 拉拔试验 拟静力试验 

分 类 号：U443.22[建筑科学—桥梁与隧道工程]