[1]季翔,张永亮,周友权,等.高速铁路大跨连续梁桥减震方案比较[J].高速铁路技术,2023,14(06):94-100.[doi:10.12098/j.issn.1674-8247.2023.06.018]
JI Xiang,ZHANG Yongliang,ZHOU Youquan,et al.Comparison of Vibration Reduction Schemes for Large-span Continuous Girder Bridge on High-speed Railway[J].HIGH SPEED RAILWAY TECHNOLOGY,2023,14(06):94-100.[doi:10.12098/j.issn.1674-8247.2023.06.018]
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高速铁路大跨连续梁桥减震方案比较()
《高速铁路技术》[ISSN:1674-8247/CN:51-1730/U]
- 卷:
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14卷
- 期数:
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2023年06期
- 页码:
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94-100
- 栏目:
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勘察设计
- 出版日期:
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2023-12-30
文章信息/Info
- Title:
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Comparison of Vibration Reduction Schemes for Large-span Continuous Girder Bridge on High-speed Railway
- 文章编号:
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1674-8247(2023)06-0094-07
- 作者:
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季翔1; 张永亮1; 周友权2; 陈兴冲1
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1.兰州交通大学,兰州 730070;2.中铁第一勘察设计院集团有限公司,西安 710043
- Author(s):
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JI Xiang1; ZHANG Yongliang1; ZHOU Youquan2; CHEN Xingchong1
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1.Lanzhou Jiaotong University ,Lanzhou 730070 ,China;2.China Railway First Survey and Design Institute Group Co. ,Ltd. ,Xi’an 710043 ,China
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- 关键词:
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铁路连续梁桥; 减震效果; 动力时程分析; 阻尼器; Lock-up装置
- Keywords:
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continuous girder railway bridge; vibration reduction effect; dynamic time history analysis; damper; lock-up device
- 分类号:
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U442.55
- DOI:
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10.12098/j.issn.1674-8247.2023.06.018
- 文献标志码:
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A
- 摘要:
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以某高速铁路(60+100+60)m大跨连续梁桥为研究对象,引入阻尼器和速度锁定器(Lock-up)减震装置,通过有限元软件建立减震体系模型,采用非线性动力时程法研究分析两种减震装置、4种布置方案在不同墩高下结构内力的分布规律及减震效果。研究结果表明:(1)在10~40m墩高内,阻尼器减震方案下墩底内力减震率随墩高增加而增大,整体布置方案下固定墩底减震率为37.1%~56.9%,较局部布置方案高出10%~18%;(2)Lock-up装置是以增大活动墩底内力来降低连续梁固定墩底内力的,且受墩高影响显著;(3)从各墩内力总和来看,阻尼器方案下各墩底内力总和减震率为17.1%~52.1%,而Lock-up方案仅当墩高大于30m时各墩底内力总和才低于抗震体系;(4)对于墩高相对较矮的三跨铁路连续梁,阻尼器的减震效果明显优于Lock-up装置。
- Abstract:
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For a large-span(60 + 100 + 60)m continuous girder bridge on a high-speed railway as the object of this study,the dampers and lock-up devices were introduced for vibration reduction. Then a vibration reduction system model was established through finite element software,and the nonlinear dynamic time-history method was used to analyze the distribution patterns of structural internal forces under different pier heights and vibration reduction effects for the two vibration reduction devices and four deployment schemes. The study results show:(1)Within a pier height of 10 ~ 40 m, the vibration reduction rate of the base of the pier with dampers increases with the height of the pier. The vibration reduction rate of the fixed pier base under the overall layout scheme is 37. 1% ~ 56. 9%,which is 10% ~18% higher than that under the partial arrangement scheme. (2)The lock-up devices reduce the internal force of the fixed pier base at the expense of increasing the internal force of the active pier base,and it is significantly affected by the pier height. (3)From the perspective of the total internal force of each pier,the vibration reduction rate of the total internal force at the base of each pier with damper is 17. 1% ~ 52. 1%,while the total internal force at the base of each pier with lock-up device only falls below the seismic system when the pier height is greater than 30 m. (4)For three-span continuous girder railway bridge with relatively low pier height,the damper has a noticeably better vibration reduction effect than the lock-up device.
参考文献/References:
[1] 汤虎,李建中. 连续梁桥固定墩减震设计方法研究[J]. 土木工程学报,2011,44(12):64-72. TANG Hu,LI Jianzhong. Study of Earthquake-reduction Design for the Fixed Pier of Continuous Bridges[J]. China Civil Engineering Journal,2011,44(12):64-72.
[2] 李侠. 长联大跨连续梁桥减隔震设计方案比选[J]. 铁道建筑, 2014,54(6):43-46. LI Xia. Comparison and Selection of Seismic Reduction and Isolation Design Schemes for Long-span Continuous Beam Bridges[J]. Railway Engineering,2014,54(6):43-46.
[3] 上官萍,马海滨,卓卫东. 多跨RC连续梁桥抗震与减隔震设计方案比选[J]. 福州大学学报(自然科学版),2013,41(4):677-681. SHANGGUAN Ping,MA Haibin,ZHUO Weidong. Seismic and Isolation Design Schemes Comparison for a Multi-span Continuous RC Girder Bridge[J]. Journal of Fuzhou University (Natural Science Edition),2013,41(4):677-681.
[4] 冯亚成. 高速铁路大跨连续梁桥减隔震方案讨论[J]. 地震研究, 2015,38(1):167-172,182. FENG Yacheng. Discussion on Seismic Mitigation and Isolation Schemes for High-speed Railway Large-span Continuous Girder Bridges[J]. Journal of Seismological Research,2015,38(1):167-172,182.
[5] 彭天波,李建中,范立础. 双曲面球型减隔震支座的开发及应用[J]. 同济大学学报(自然科学版),2007,35(2):176-180. PENG Tianbo,LI Jianzhong,FAN Lichu. Development and Application of Double Spherical Aseismic Bearing[J]. Journal of Tongji University (Natural Science),2007,35(2):176-180.
[6] 颜志华,马良喆,陈永祁. 速度锁定装置在津秦客运专线减震设计中的应用[J]. 桥梁建设,2014,44(1):95-100. YAN Zhihua,MA Liangzhe,CHEN Yongqi. Applying of Speed Lock-up Devices to Seismic Mitigation Design of a Continuous Girder Bridge on Tianjin-Qinhuangdao Passenger Dedicated Railway[J]. Bridge Construction,2014,44(1):95-100.
[7] 毛玉东,李建中. 大跨连续梁桥纵向减震机理和减震效果分析[J]. 同济大学学报(自然科学版),2016,44(2):185-191. MAO Yudong,LI Jianzhong. Analysis of Seismic Mitigation Mechanism and Effect on Longitudinal Direction of Long-span Continuous Bridges[J]. Journal of Tongji University (Natural Science),2016,44(2):185-191.
[8] 吴陶晶,李建中,管仲国. 减隔震装置作用机理及其在大跨度连续梁桥中的应用[J]. 结构工程师,2009,25(4):102-107. WU Taojing,LI Jianzhong,GUAN Zhongguo. Mechanism of Seismic Isolation Devices and Applications in a Long-span Continuous Bridge [J]. Structural Engineers,2009,25(4):102-107.
[9] 夏修身,崔靓波,陈兴冲,等. 长联大跨连续梁桥隔震技术应用研究[J]. 桥梁建设,2015,45(4):39-45. XIA Xiushen,CUI Liangbo,CHEN Xingchong,et al. Study of Application of Seismic Isolation Techniques for Long Span and Long Unit Continuous Beam Bridge[J]. Bridge Construction,2015,45(4):39-45.
[10]?张永亮,陈兴冲,颜志华. Lock-up装置在连续梁桥上的减震性能研究[J]. 世界地震工程,2010,26(2):48-52. ZHANG Yongliang,CHEN Xingchong,YAN Zhihua. Research on Seismic Reduction Performance of Lock-up Device Applied to Continuous Girder Bridge[J]. World Earthquake Engineering, 2010,26(2):48-52.
[11]?秦煜,杨超华,吴多,等. 速度锁定器理论模型及铁路桥梁抗震适用性分析[J]. 高速铁路技术,2018,9(2):5-8,32. QIN Yu,YANG Chaohua,WU Duo,et al. Theoretical Model of Lock-up Device and Applicability Analysis of Seismic Design of Railway Bridge[J]. High Speed Railway Technology,2018,9(2):5-8, 32.
[12]?王志强,葛继平. 粘滞阻尼器和Lock-up装置在连续梁桥抗震中应用[J]. 石家庄铁道学院学报,2006,19(1):5-9. WANG Zhiqiang,GE Jiping. Application of Viscous Damper and Lock-up Devices in the Seismic Design of Continuous Girder Bridges [J]. Journal of Shijiazhuang Railway Institute,2006,19(1):5-9.
[13]?宋子威,蔡小培. 粘滞性阻尼器在高速铁路长联大跨连续梁中的应用[J]. 清华大学学报(自然科学版),2012,52(8):1102-1105. SONG Ziwei,CAI Xiaopei. Application of Viscous Damper Devices in the Seismic Design of Long Span and Long Unit Continuous Girder Bridges on High Speed Railway[J]. Journal of Tsinghua University (Science and Technology),2012,52(8):1102-1105.
备注/Memo
- 备注/Memo:
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收稿日期:2022-10-18
作者简介:季翔(1995-),男,硕士研究生。引文格式:季翔,张永亮,周友权,等. 高速铁路大跨连续梁桥减震方案比较[J] .高速铁路技术,2023,14(6):94?-100.
更新日期/Last Update:
2023-12-30