近场速度脉冲地震下摩擦摆式(FPS)支座的隔震特性分析
摘要
随着公路桥梁的建设和隔震技术的发展,近断层隔震桥梁的抗震性能研究十分必要。该文以一座4跨连续梁桥为例,通过非线性时程的方法,探讨了连续梁桥在近场地震作用下桥梁的减隔震特性及参数变化规律,分析研究结果表明:采用隔震技术后,在近场地震作用下仍具有有效的减震效果;墩底弯矩随支座半径的增加而减小,支座位移随支座半径的增加而增加;存在某个特定的摩擦系数μ使墩底弯矩最小,墩顶支座位移随摩擦系数μ的增加而减小,一定程度不太敏感。
引文
[1]Cheng-Cheng Chen,Ching-Tung Huang,Rwey-HuaCheng Van Jeng.Preliminary Investigation of Damage toNear Fault Buildings of the 1999Chi-Chi Earthquake[J].Earthquke Engineering and Engineering Seismology,2000,2(1):79-92.
[2]江辉,朱晞.近断层强震速度脉冲效应及连续梁桥减隔震特性分析[J].中国安全科学学报,2003(12).
[3]魏红一,逯宗典,王志强.近场简支梁铅芯橡胶支座隔震特性分析[J].同济大学学报,2010(1).
[4]Nicos Makris,shih-Po Chang.Effect of Damping Mech-anisms on the response of Seismically Isolated Structures[R].PEER Report 1998/06,Pacific Earthquake Engi-neering Research Center,College of Engineering,Uni-versity of California,Berkeley,November,1998.
[5]Jerry Shen,Meng-hao Tsai,Kuo-Chun Chang,GeorgeC.lee.Performance of a Seimically Isolated Bridge underNear-Fault Earthquake Ground Motions[J].Journal ofStructural Engineering,June 2004:861-868.
[6]范立础,王志强.桥梁减隔震设计[M].北京:人民交通出版社,2001.
[7]邹宏德,蓝宗建.FPS动力参数对新型巨型框架减隔振结构抗震性能的影响[J].湖南城市学院学报:自然科学版,2005(3).
[2]江辉,朱晞.近断层强震速度脉冲效应及连续梁桥减隔震特性分析[J].中国安全科学学报,2003(12).
[3]魏红一,逯宗典,王志强.近场简支梁铅芯橡胶支座隔震特性分析[J].同济大学学报,2010(1).
[4]Nicos Makris,shih-Po Chang.Effect of Damping Mech-anisms on the response of Seismically Isolated Structures[R].PEER Report 1998/06,Pacific Earthquake Engi-neering Research Center,College of Engineering,Uni-versity of California,Berkeley,November,1998.
[5]Jerry Shen,Meng-hao Tsai,Kuo-Chun Chang,GeorgeC.lee.Performance of a Seimically Isolated Bridge underNear-Fault Earthquake Ground Motions[J].Journal ofStructural Engineering,June 2004:861-868.
[6]范立础,王志强.桥梁减隔震设计[M].北京:人民交通出版社,2001.
[7]邹宏德,蓝宗建.FPS动力参数对新型巨型框架减隔振结构抗震性能的影响[J].湖南城市学院学报:自然科学版,2005(3).
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