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拉索摩擦摆支座在曲线梁桥中的抗震分析

DOI: 10.13197/j.eeev.2014.03.41.gaok.006, PP. 41-46

Keywords: 曲线梁桥,拉索摩擦摆支座,弯扭耦合,能力需求比,减震率

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Abstract:

针对曲线梁桥弯扭耦合严重、地震危害明显等特点,提出一种更适于曲线梁桥的减隔震支座-拉索摩擦摆支座。以一座实际城市曲线梁桥为背景,建立曲线梁桥在4种支座下的三维模型,真实模拟了支座处于双向滑动极限工作状态的性能,重点讨论拉索摩擦摆支座在曲线梁桥上的减隔震效果;引入减震率概念,对比了4种模型在5种参数下差异。结果表明此支座能够有效降低曲线梁桥中墩、边墩内力,减小弯扭耦合作用,将墩、梁相对位移限制在设计范围内,且具有较好的能力需求比。通过调整拉索的自由程或摩擦摆的摩擦系数可以得到最优减隔震效果。

References

[1]  陈轶鹏,李文会,白 苹.轨道交通高架桥梁发展方向探讨[J].都市快轨交通,2013,26(4):20-23. CHEN Tiepeng,LI Wenhui,BAI Ping. Discussion on the development direction of rail transit elevated bridges[J]. Urban Rapid Rail Transit,2013,26(4):20-23.(in Chinese)
[2]  Earthquake Engineering Research Institute (EERD). Northridge earthquake reconnaissance report,V01.[R]. Rep.No.95-03,1995,EERI, Oakland, Calif.
[3]  孙治国,王东升,郭 迅,汶川大地震绵竹市回澜立交桥震害调查[J].地震工程与工程振动,2009,29(4):132-138. SUN Zhiguo, WANG Dongsheng, GUO Xun. Damage investigation of Huilan interchange in Mianzhu after Wenchuan earthquake[J].Journal of Earthquake Engineering and Engineering Vibration,2009,29(4):132-138.(in Chinese)
[4]  范立础,李建中. 汶川桥粱震害分析与抗震设计对策[J], 公路.2009(5):122-128. FAN Lichu, LI Jianrzhong. Analysis of the bridges damage in Wenchuan earthquake and seismic design counter measures[J]. Highway,2009(5):122-128(in Chinese)
[5]  ZayasV; LowS; Mahin S A. The FPS earthquake resisting system 1987.
[6]  Zayas V A; Low S S. Seismic isolation of bridges using friction pendulum bearings 1999.
[7]  袁万城, 曹新建,荣肇骏, 拉索减震支座的开发与试验研究[J]. 哈尔滨工程大学学报, 2010, 31(12): 1593-1600. YUAN Wancheng, CAO Xinjian,RONG Zhaojun.Development and experimental study on cable-sliding friction aseismic bearing[J]. Journal of Harbin Engineering University,2010,31(12):1593-1600.(in Chinese)
[8]  WEI Zhenghua,YUAN Wancheng,CAO Xinjian,et al. Seismic performance of continuous girder bridges using cable-sliding friction aseismic bearing[C]// The Twelfth East Asia-Pacific Conference on Structural Engineering and Construction(EASEC-12),China,Hong Kong SAR,2011:26-28.
[9]  JTG/T B02-01-2008公路桥梁抗震设计细则[S]. JTG/T B02-01-2008 Guidelines for Seismic Design of Highway Bridges[S].(in Chinese)
[10]  朱东生,刘世忠,虞庐松. 曲线桥地震反应研究[J]. 中国公路学报,2002,15(3):42-48 ZHU Dongsheng,LIU Shizhong,YU Lusong.Research on seismic response of curved girder bridges[J].China Journal of Highway and Transport,2002,15(3):42-48.(in Chinese)

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