高烈度区新型减隔震连续梁桥的抗震性能

发布时间：2018-03-30 08:14

本文选题：新型减隔震支座　切入点：连续梁桥　出处：《东南大学学报(自然科学版)》2014年04期

【摘要】：在满足支座耗能能力的同时,兼顾其在桥梁运营期间的变形适应能力,研发了一种新型多功能减隔震支座.以地处地震高烈度区的太白大桥为研究对象,基于实测参数分析了时域内新型支座用于该连续梁桥的减震效果,并分别与传统非隔震体系、摩擦滑移支座隔震、铅芯橡胶支座隔震等措施的减震效果进行了对比.结果表明,新型减隔震支座具有较好的综合使用效果,对桥梁在环境作用下的变形适应能力较强,并且可以满足桥梁在强震下的耗能需求,保证了桥梁的安全性.
[Abstract]:In order to meet the energy dissipation capacity of the bearing and the deformation adaptability of the bridge during the operation period, a new type of multi-function isolation bearing is developed. The Taibai Bridge, which is located in the high seismic intensity area, is taken as the research object. Based on the measured parameters, the shock absorption effect of the new bearing used in this continuous beam bridge in time domain is analyzed, and the results are compared with those of the traditional non-isolation system, friction slip bearing isolation, lead rubber bearing isolation and so on. The results show that the vibration absorption effect of the new type of bearing in the time-domain is compared with that of the traditional non-isolation system, the friction slip bearing isolation and the lead-rubber bearing isolation. The new type of isolation bearing has better comprehensive application effect, better adaptability to the deformation of the bridge under the action of the environment, and can meet the energy demand of the bridge under the strong earthquake, thus ensuring the safety of the bridge.
【作者单位】：东南大学土木工程学院;东南大学混凝土及预应力混凝土结构教育部重点实验室;
【基金】：国家自然科学基金资助项目(51278104) 教育部新世纪优秀人才支持计划资助项目(NCET-13-0128) 中央高校基本科研业务费优秀青年教师专项资金资助项目(2242012R30002) 招商局重庆交通科研设计院有限公司桥梁工程结构动力学国家重点实验室开放基金资助项目(201302)
【分类号】：U443.36;U442.55

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