桥梁高阻尼隔震橡胶支座性能试验研究
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摘要
高阻尼隔震橡胶支座是一种具有耗能性能的新型隔震支座,已经开始应用于桥梁减隔震控制中。为了研究这种新型隔震支座的滞回性能,选取用于某高速公路桥梁的高阻尼隔震支座进行竖向压缩和水平剪切加载试验研究,研究其竖向压应力、水平极限剪切应变、加载频率及加载次数对滞回性能的影响。研究结果表明:高阻尼隔震橡胶支座的滞回曲线较为饱满,耗能效果较好,且多次循环加载后其耗能能力未出现降低的趋势;加载频率对于支座的等效刚度和等效阻尼有一定的影响。
High damping seismic islolaton rubber bearings( HDRBS) as a new kind of isolation rubber with the good performance of consuming energy have been used in bridge seismic isolation control recently. In order to study the hysterertic behavior of this new kind of isolation rubber,high damping seismic islolaton rubber bearings used in a highway bridge were taken as objects in vertical compression and horizontal shear loading tests. The effects of vertical stress,horizontal ultimate shear strain,loading frequency and loading times on hysteretic properties were investigated. The results show that the hysteretic curve of HDRBS is rather plump,describing good energy comsuming character and after repeated cyclic loading the performance of consuming energy does not appear decreasing trend. In addition loading frequency has some effect on the equivalent bearing stiffness and equivalent damping ratio.
引文
[1]杜修力,韩强,李忠献,等.5.12汶川地震中山区公路桥梁震害及启示[J].北京工业大学学报,2008,34(12):1270-1279.DU Xiu-li,HAN-Qiang,LI Zhong-xian,et al.The seismic damage of bridges in the 2008 wenchuan earthquake and lessons form its damage[J].Journal of Beijing University of Technology,2008,34(12):1270-1279.
    [2]范立础,王志强.桥梁减隔震设计[M].北京:人民交通出版社,2001.
    [3]周锡元,闫维明,杨润林.建筑结构的隔震、减震和振动控制[J].建筑结构学报,2002,23(2):2-12.ZHOU Xi-yuan,YAN Wei-ming,YANG Run-lin.Seismic base isolation,energy dissipation and vibration control of building structures[J].Journal of Building Structures,2002,23(2):2-12.
    [4]苏经宇,曾德民.我国建筑结构隔震技术的研究和应用[J].地震工程与工程振动,2001,21(4):94-101.SU Jing-yu,ZENG De-min.Research and Application of Seismic Isolation of Buildings in China[J].Earthquake Engineering and Engineering Vibration,2001,21(4):94-101.
    [5]侯宝隆.日本隔震技术的新发展与控震技术的实际应用[J].工业建筑,2000,30(11):74-78.HOU Bao-long.New developments of Japan's isolation technology and the practical application of earthquake control industrial construction[J].Industrial Construction,2000,30(4):94-101.
    [6]杨迪雄,李刚,程耿东.隔震结构的研究概况和主要问题[J].力学进展,2003,33(3):302-312.YANG Di-xiong,LI Gang,CHENG Geng-dong.Research overview and key issues of isolated structures[J].Advances in Mechanics,2003,33(3):302-312.
    [7]吴应雄,王兆樑,祁皑,等.叠层橡胶支座与抗风支座组合隔震反应分析[J].振动与冲击,2014,33(5):149-154.WU Ying-xiong,WANG Zhao-liang,QI Ai,et al.Response analysis for a compound isolation structure consisting of laminated rubber bearings and wind-resistant supports[J].Journal of Vibration and Shock,2014,33(5):149-154.
    [8]袁涌,朱宏平,道资铭.高阻尼橡胶隔震支座的力学性能及隔震效果研究[J].工程抗震与加固改造,2008,30(3):16-20.YUAN Yong,ZHU Hong-ping,DAO Zi-ming.Experimental study on characteristics and isolator effect of high-damping rubber bearing[J].Earthquake Resitant Engineering and Retrofitting,2008,30(3):16-20.
    [9]Zonta D,Zandonini R,Bortot F.A reliability-based bridge management concept[J].Structure and Infrastructure Engineering,2007,3(3):215-235.
    [10]Li V O K,Silvester J A.Performance analysis of networks with unreliable components[J].IEEE Transactions on Communications,1984,32(10):1105-1110.
    [11]JT/T 842-2012公路桥梁高阻尼隔震橡胶支座[S].
    [12]GB/T 20688.1-2007橡胶支座[S].2007.

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