第38卷第3期 2016年6月
土木建筑与环境工程
Journal of Civil,Architectural &. Environmental Engineering
doi;10.11835/j.issn.1674-4764.2016. 03. 005
Vol. 38 No. 3 Jun.2016
可O
地震序列下拉索模数伸缩缝联间限位分析
王建国，衰万城，高康，党新志
（同济大学土木工程防灾国家重点实验宝，上海200092）
摘要：主震作用下桥梁结构可能已发生联间相对变位，强余震作用将进一步加剧桥架上部结构的碰撞或落梁灾害，以某连续渠桥为例进行地震序列分析，并对比有无拉索模数伸缩缝两种情况下的地震响应，结果表明：拉索模数仲缩缝能够有效限制主余震各阶段联间相对位移，对避免主震后产生联间残余位移的桥案结构在强余震作用下发生碰捶、落巢具有重要意义主同时，拉索模数伸缩缝
使桥梁各联间协同作用，从而墩梁相对位移得到相应的控制，桥墩受力亦有所改善。关键词：地震序列；拉索模数仲缩缝；联间位移
中图分类号：U442.5；TU375
文献标志码：A
文章编号：1674-4764(2016)03-0035-06
CMEJs' effect in limiting relative displacement between girders
withexcitation of seismic sequence
WangJianguo，YuanWancheng，GaoKang，DangXinzhi
(State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, P. R. China)
Abstract:Residual displacement between girders would have occurred after the main shock. And it would get further destroy (like pounding and unseating) with the excitation of aftershocks. Conclusions draw from the comparation on the response of continuous bridge with or without Cablesliding expansion joints(CMEJs) under the excitation of seismic sequence. Relative displacement between girders gets effective restrained during the whole seismic process with the CMEJs which get great meaning for avoiding pounding and unseating. With the contribution of the CMEJs, all the girders work together causing the relative displacement between girder and the pile decreased. And the pier force also gets optimized.
Keywords:Seismic sequencet Cable-sliding modular expansion joints （(CMEJs); relative displacement between girders
收稿日期：2015-12-24
基金项目：国家自然科学基金（51478339、51278376、91315301）；土本工程防灾国家重点实验室基金（SLDRCE14一B
14）；江西省科技计划（20151BBG70064）
作者简介：王建国（1993-），男，主要从事桥梁抗震研，（E-mail)wjgnky@163.com，
袁万城（通信作者），男，教授.博士生导师，博士，（E-mail)yuantongji.edu.cn。
Received:2015-12-24
Foundation item: National Natural Science Foundation of China(No. 51478339,51278376, 91315301); Foundation of State
Key Laboratory for Disaster Reduction in Civil Engineering ( No. SLDRCE14-B-14); Foundation of Scientific Project for Jiangxi Province(No. 20151BBG70064)
Author brief: Wang Jianguo(1993-) ,main interest : aseismic of bridges, (E-mail)wjgnky@ 163. com
Yuan Wancheng(corresponding author) , professor, doctor supervisor, (E-mail) yuan@ tongji. edu, en.