全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

LRB支座选取及其对连续梁桥减隔震效果的影响

DOI: 10.13197/j.eeev.2015.05.85.chenzj.013, PP. 85-91

Keywords: 铅芯橡胶支座,减隔震,桥梁抗震

Full-Text   Cite this paper   Add to My Lib

Abstract:

本文以桥梁上部结构自重等荷载引起的墩台处支座反力为考虑因素,通过选择合适的铅芯橡胶支座并进行了一系列的数值分析,使桥梁结构减隔震效果达到最佳。基于大型有限元软件MidasCivil建立某三跨连续梁桥,采用动力时程分析方法,初选了六组支座作为研究对象,以墩底内力、支座内力、支座滞回耗能特性、墩顶加速度、主梁观测点加速度等为主要考虑因素,对铅芯橡胶支座的减隔震效果进行了分析。结果表明,当选取桥台处LRB支座竖向承载力约为支座反力的1.12倍,桥墩处LRB支座竖向承载力约为支座反力的1.10倍,且所有LRB支座铅芯屈服力约为梁体自重的0.056倍时,减隔震效果最佳。

References

[1]  周 云, 徐 彤, 周福霖. 抗震与减震结构的能量分析方法研究与应用[J]. 地震工程与工程振动, 1999, 04:133-139. ZHOU Yun, XU Tong, ZHOU Fulin. Research and development of structural seismic design based on energy method[J]. Earthquake Engineering and Engineering Dynamics, 1999, 04:133-139.(in Chinese)
[2]  王克海, 孙永红, 韦 韩, 等. 汶川地震后对我国结构工程抗震的几点思考[J]. 公路交通科技, 2008, 11:54-59. WANG Kehai, SUN Yonghong, WEI Han. Comments on seismic strengthening for structural engineering in China after wenchuan earthquake[J]. Journal of Highway and Transportation Research and Development, 2008, 11:54-59.(in Chinese)
[3]  JIANG Lizhong, CHEN Lingkun, LIU Peng, et al. Study on seismic isolation of high-speed bridge fabricated lead rubber bearing[C]//Proceedings of the 6th International Conference on Physical and Numerical Simulation of Materials Processing, 2010.
[4]  杜修力, 韩 强, 刘文光, 等. 方形多铅芯橡胶支座力学性能研究[J]. 地震工程与工程振动, 2006, 02:125-130. DU Xiuli, HAN Qiang, LIU Wenguang, et al. Study on the mechanical properties of square multi lead rubber bearing [J]. Earthquake Engineering and Engineering Dynamics, 2006, 02:125-130.(in Chinese)
[5]  江宜城, 聂肃非, 叶志雄, 等. 多铅芯橡胶隔震支座非线性力学性能试验研究及其显式有限元分析[J]. 工程力学, 2008, 07:11-17. JIANG Yicheng, NIE Sufei, YE Zhixiong. Experimental study on mechanical properties of multi-lead rubber bearing and its explicit finite element analysis[J]. Engineering Mechanics, 2008, 07:11-17.(in Chinese)
[6]  刘文光, 周福霖, 庄学真, 等. 大直径夹层橡胶隔震装置力学性能试验研究[J]. 世界地震工程, 1999, 15(1):62-68+87. LIU Wenguang, ZHOU Fulin, ZHUANG Xuezhen. Experimental study of mechanical properties of large diameter sandwich rubber seismic isolation device[J]. World Earthquake Engineering, 1999, 15(1):62-68+87.(in Chinese)
[7]  韩 强, 刘文光, 杜修力. 橡胶支座压缩剪切变形状态的竖向性能试验研究[J]. 华东公路, 2005, 01:44-47. HAN Qiang, LIU Wenguang, DU Xiuli. Experimental study on the performance of rubber bearing shear deformation states on vertical compression[J]. East China Highway, 2005, 01:44-47.(in Chinese)
[8]  谢礼立, 马玉宏. 现代抗震设计理论的发展过程[J]. 国际地震动态, 2003, 10:1-8. XIE Lili, MA Yuhong. Development of modern seismic design theory[J]. Recent Developments in World Seismology, 2003, 10:1-8.(in Chinese)
[9]  WEI Lushun, ZHOU Fulin, TAN Ping. Research and application on three-dimensional seismic and vibration isolation for building[J]. Journal of Harbin Institute of Technology, 2011, 01:62-66.

Full-Text

comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133

WeChat 1538708413