方形多铅芯橡胶支座减振性能试验分析及其工程应用
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摘要
在对比一般铅芯橡胶支座受力性能的基础上,阐述了方形多铅芯橡胶支座的减振特点,并利用具体试验对其受力性能进行研究,得出与理论计算值相吻合的结果。以一座6跨连续刚构组合体系梁桥为实例,利用有限元分析软件计算其地震响应,得出具体软件数据,分析验证方形多铅芯橡胶支座的实际工程减震效果。研究结果表明,方形多铅芯橡胶支座竖向性能和水平性能很稳定,是理想桥梁结构的减震装置,在工程实践中应予以适当采用。
On the basis of comparing the mechanical properties between general leadcore rubber bearing and square multi-leadcore rubber bearing,the damping characteristics of square multi-leadcore rubber bearing were expatiated,its mechanical property was studied by specific experiments,and the result which is almost identical as theoretical result was obtained.Taken a six-span continuous rigid-frame composite beam bridge for example,the seismic response was calculated by using finite element software to work out the concrete analytical data for analysing and verifying the damping effect of square multi-leadcore rubber bearing in the practical engineering.The result shows that the vertical and level performances of square multi-leadcore rubber bearing are stable,the bearing is an ideal damping device for bridge structure and could be used in engineering practice.
On the basis of comparing the mechanical properties between general leadcore rubber bearing and square multi-leadcore rubber bearing,the damping characteristics of square multi-leadcore rubber bearing were expatiated,its mechanical property was studied by specific experiments,and the result which is almost identical as theoretical result was obtained.Taken a six-span continuous rigid-frame composite beam bridge for example,the seismic response was calculated by using finite element software to work out the concrete analytical data for analysing and verifying the damping effect of square multi-leadcore rubber bearing in the practical engineering.The result shows that the vertical and level performances of square multi-leadcore rubber bearing are stable,the bearing is an ideal damping device for bridge structure and could be used in engineering practice.
引文
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[11]江宜城,叶志雄,聂肃非,等.方形铅芯橡胶支座力学性能试验研究及隔震桥梁地震响应分析[J].公路交通科技,2007,24(10):94-98.JIANG Yicheng,YE Zhixiong,NIE Sufei.ExperimentalStudy of Mechanical Properties of Square Lead RubberBearing and Seismic Response Analysis of Isolated Bridge[J].Journal of Highway and Transportation Research andDevelopment,2007,24(10):94-98.
[12]国祥明,肖盛燮.对桥梁两种橡胶支座减隔震性能的理论分析[J].重庆交通学院学报,2006,25(5):24-27.GUO Xiangming,XIAO Shengxie.The Theory Analysis ofTwo Kinds of Bridge Rubber Bearing for Isolated Function[J].Journal of Chongqing Jiaotong University,2006,25(5):24-27.
[2]庄军生.桥梁支座[M].北京:中国铁道出版社,2004.ZHUANG Junsheng.Bridge Bearing[M].Beijing:China Railway Publishing House,2004.
[3]吴彬,庄军生.桥梁支座减震、隔震技术[J].铁道建筑,2002(12):13-15.WU Bin,ZHUANG Junsheng.Bridge Bearings Dampingand Isolation Technology[J].Railway Engineering,2002(12):13-15.
[4]陈云信.铅芯橡胶支座的研究现状与展望[J].现代机械,2005(6):79-84.CHEN Yunxin.Studies on Existing and Prospect of LeadRubber Bearing(LRB)[J].Modern Machinery,2005(6):79-84.
[5]朱文正,刘建新.铅销橡胶支座对桥梁抗震性能的影响[J].长安大学学报:自然科学版,2004,24(1):48-51.ZHU Wenzheng,LIU Jianxin.Influence of Lead RubberBearing on Earthquake Resisting Behavior of Bridges[J].Journal of Chang'an University:Natural Science Edition,2004,24(1):48-51.
[6]聂肃非.连续梁桥橡胶铅芯隔震支座的力学性能研究及应用[D].武汉:华中科技大学,2010.NIE Sufei.Research of Mechanical Properties andApplication of LRB in Continuous Beam Bridge[D].Wuhan:Huazhong University of Science and Technology,2010.
[7]焦驰宇,李建中.桥梁新型减隔震支座的研究进展[J].结构工程师,2007,23(3):83-88.JIAO Chiyu,LI Jianzhong.Advances of New-StyleIsolation Bearings in Bridges[J].Structural Engineers,2007,23(3):83-88.
[8]朱玉华,胥玉祥,黄海荣.多铅芯橡胶支座力学性能研究综述[J].低温建筑技术,2010(2):38-40.ZHU Yuhua,XU Yuxiang,HUANG Hairong.Review andOutlook of Research about Multi-lead Rubber BearingsMechanical Property[J].Low Temperature ArchitectureTechnology,2010(2):38-40.
[9]JG118-2000,建筑隔震橡胶支座[S].JG 118-2000,Rubber Isolation Bearing For Buildings[S].
[10]曾攀,闫贵平.隔震桥梁动力特性分析[J].公路交通科技,2001(4):51-54.ZENG Pan,YAN Guiping.Research on DynamicCharacteristics of Isolated Bridges[J].Journal of Highwayand Transportation Research and Development,2001(4):51-54.
[11]江宜城,叶志雄,聂肃非,等.方形铅芯橡胶支座力学性能试验研究及隔震桥梁地震响应分析[J].公路交通科技,2007,24(10):94-98.JIANG Yicheng,YE Zhixiong,NIE Sufei.ExperimentalStudy of Mechanical Properties of Square Lead RubberBearing and Seismic Response Analysis of Isolated Bridge[J].Journal of Highway and Transportation Research andDevelopment,2007,24(10):94-98.
[12]国祥明,肖盛燮.对桥梁两种橡胶支座减隔震性能的理论分析[J].重庆交通学院学报,2006,25(5):24-27.GUO Xiangming,XIAO Shengxie.The Theory Analysis ofTwo Kinds of Bridge Rubber Bearing for Isolated Function[J].Journal of Chongqing Jiaotong University,2006,25(5):24-27.
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