新型多功能桥梁滑移-减隔震支座性能试验

发布时间：2018-05-28 08:08

本文选题：多功能滑移-减隔震支座 + 力学特性　；参考：《建筑科学与工程学报》2014年04期

【摘要】：针对传统桥梁减隔震支座性能单一,无法满足正常使用荷载及地震极端荷载等不同工况的现状,设计了一种新型多功能滑移-减隔震支座,通过理论分析与有限元模拟相结合的方式建立了该多功能支座的剪切性能曲线,并阐述了该曲线的力学特性及各个关键点的意义。在此基础上,进行了压缩性能、剪切性能及其相关性试验。结果表明:新型多功能滑移-减隔震支座能够达到预期目标,可同时满足桥梁在正常使用阶段的滑移和地震作用下的耗能要求;支座剪切性能曲线的有限元分析结果与试验结果吻合良好,有限元分析得到的剪切性能曲线可有效描述其力学行为;所得结论为后续桥梁减隔震设计及动力时程分析提供了参考。
[Abstract]:In view of the fact that the performance of the traditional bridge isolation bearing is single, it can not meet the status of different working conditions such as normal load and earthquake extreme load, a new type of multi function sliding isolation bearing is designed. The shear performance curve of the multi-function support is established by the combination of theoretical analysis and finite element simulation, and the curve is expounded. On the basis of this, the compressive properties, shear properties and their correlation tests are carried out. The results show that the new multi-functional sliding isolation bearing can reach the expected goal, and can meet the requirements of the bridge's energy consumption under the sliding and ground shock at the normal use stage, and the shear performance curve of the support. The results of the finite element analysis are in good agreement with the experimental results. The shear performance curves obtained by the finite element analysis can effectively describe the mechanical behavior. The conclusions provide a reference for the subsequent bridge isolation design and the dynamic time history analysis.
【作者单位】：东南大学混凝土及预应力混凝土结构教育部重点实验室;中国十七冶集团有限公司;
【基金】：教育部新世纪优秀人才支持计划项目(NCET-13-0128) 中央高校基本科研业务费专项资金项目(2242012R30002) 桥梁工程结构动力学国家重点实验室开放基金项目(201302)
【分类号】：U442.55;U443.36

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