Lock-up装置的作用机理与分析模型
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摘要
为探讨Lock-up装置的分析模型,介绍了其构造、阐述了其作用机理,给出了Lock-up装置阻尼力的力学模型并提出了相应的数值模拟方法。基于某铁路桥梁,建立全桥有限空间模型,采用文中提出的模拟方法进行了Lock-up装置的减震性能分析,通过与常用的刚性连杆或主从约束模拟方法的比较,明确了刚性连杆模拟方法的适用条件。结果表明,Lock-up装置的地震作用过程比较复杂,当Lock-up装置能够激发出极大的阻尼力时,文中的模拟方法与常用的刚性连杆或主从约束模拟方法结果非常接近,通常情况按刚性连杆或主从约束模拟方法得到的结果偏大。
The configurations and mechanism of a lock-up device( LUD) are presented for investigating its analytical model. Mechanical model of damping force for LUD is given,and the corresponding numerical simulation method is proposed. Based on a railway bridge,the finite element model of the bridge is established. The seismic performance analysis is performed by using the above-mentioned simulation method for LUD. Applicable conditions for rigid rods or master-slave constraints method are defined by comparing with the common methods such as rigid rods or master-slave constraints. The results showed that the seismic process of LUD is quite complicated. When the LUD can inspire great damping force,the seismic results by the simulation method proposed in this paper are very close to the conventional rigid rods or master-slave constraints. Usually,the results obtained from rigid rods or master-slave constraints are too large.
The configurations and mechanism of a lock-up device( LUD) are presented for investigating its analytical model. Mechanical model of damping force for LUD is given,and the corresponding numerical simulation method is proposed. Based on a railway bridge,the finite element model of the bridge is established. The seismic performance analysis is performed by using the above-mentioned simulation method for LUD. Applicable conditions for rigid rods or master-slave constraints method are defined by comparing with the common methods such as rigid rods or master-slave constraints. The results showed that the seismic process of LUD is quite complicated. When the LUD can inspire great damping force,the seismic results by the simulation method proposed in this paper are very close to the conventional rigid rods or master-slave constraints. Usually,the results obtained from rigid rods or master-slave constraints are too large.
引文
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[2]EN 1998-2,Eurocode 8-design of structures for earthquake resistance-Part 2:Bridges[S].[S.l.],2005.
[3]PATEL D J.Value of shock transmission units for Mumbai Bridge[C]//Proceedings of the Institution of Civil Engineers.Mumbai,India,2004:203-212.
[4]王磊,刘寒冰,吴斌喧,等.新型地震结构保护系统的大跨径桥梁抗震分析[J].哈尔滨工业大学学报,2004,36(12):1665-1668.WANG Lei,LIU Hanbing,WU Binxuan,et al.Seismic response analysis for long span bridge with new earthquake protective system[J].Journal of Harbin Institute of Technology,2004,36(12):1665-1668.
[5]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.
[6]曾武华,孙海朋,卓卫东.早期大跨径连续梁桥改造中的抗震方案比选[J].福州大学学报:自然科学版,2013,41(4):505-509.ZENG Wuhua,SUN Haipeng,ZHUO Weidong.Seismic scheme comparison in reconstruction design of an early longspan continuous girder bridge[J].Journal of Fuzhou University:Natural Science Edition,2013,41(4):505-509.
[7]DION C,BOUAANANI N,TREMBLAY R,et al.Realtime dynamic substructuring testing of viscous seismic protective devices for bridge structures[J].Engineering Structures,2011,33(12):3351-3363.
[8]陈永祁,耿瑞琦,马良喆.桥梁用液体黏滞阻尼器的减振设计和类型选择[J].土木工程学报,2007,40(7):55-61.CHEN Yongqi,GENG Ruiqi,MA Liangzhe.Design and selection of fluid viscous devices for shock control of bridges[J].China Civil Engineering Journal,2007,40(7):55-61.
[9]BROWN W M,RAY N,MANDAL A.Tech Star lock-up devices&anti-seismic expansion joints in Southern Asia[C]//IABSE-JSCE Joint Conference on Advances in Bridge Engineering-II.Dhaka,Bangladesh,2010:360-365.
[10]康斯坦丁诺.桥梁地震保护系统[M].陈永祁,马良喆,译.北京:中国铁道出版社,2012:218-224.
[11]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.
[12]陈永祁.桥梁工程液体黏滞阻尼器设计与施工[M].北京:中国铁道出版社,2012:46-54.
[13]聂利英,李建中,胡世德,等.西堠门大桥3种梁端约束体系比较[J].桥梁建设,2006(6):73-75.NIE Liying,LI Jianzhong,HU Shide,et al.Comparison of three kinds of girder end constraint systems for Xihoumen Bridge[J].Bridge Construction,2006(6):73-75.
[14]CASTELLANO M G,COLATO G P,INFANTI S.Use of viscous dampers and shock transmission units in the seismic protection of buildings[C]//13th World Conference on Earthquake Engineering.Vancouver,Canada,2004:2172.
[15]叶爱君,范立础.附加阻尼器对大跨度斜拉桥的减震效果[J].同济大学学报:自然科学版,2006,34(7):859-863.YE Aijun,FAN Lichu.Seismic response reduction of a super-long-span cable-stayed bridge by adding dampers[J].Journal of Tongji University:Natural Science Edition,2006,34(7):859-863.
[16]GB50111-2006铁路工程抗震设计规范[S].北京:中国计划出版社,2009.
[2]EN 1998-2,Eurocode 8-design of structures for earthquake resistance-Part 2:Bridges[S].[S.l.],2005.
[3]PATEL D J.Value of shock transmission units for Mumbai Bridge[C]//Proceedings of the Institution of Civil Engineers.Mumbai,India,2004:203-212.
[4]王磊,刘寒冰,吴斌喧,等.新型地震结构保护系统的大跨径桥梁抗震分析[J].哈尔滨工业大学学报,2004,36(12):1665-1668.WANG Lei,LIU Hanbing,WU Binxuan,et al.Seismic response analysis for long span bridge with new earthquake protective system[J].Journal of Harbin Institute of Technology,2004,36(12):1665-1668.
[5]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.
[6]曾武华,孙海朋,卓卫东.早期大跨径连续梁桥改造中的抗震方案比选[J].福州大学学报:自然科学版,2013,41(4):505-509.ZENG Wuhua,SUN Haipeng,ZHUO Weidong.Seismic scheme comparison in reconstruction design of an early longspan continuous girder bridge[J].Journal of Fuzhou University:Natural Science Edition,2013,41(4):505-509.
[7]DION C,BOUAANANI N,TREMBLAY R,et al.Realtime dynamic substructuring testing of viscous seismic protective devices for bridge structures[J].Engineering Structures,2011,33(12):3351-3363.
[8]陈永祁,耿瑞琦,马良喆.桥梁用液体黏滞阻尼器的减振设计和类型选择[J].土木工程学报,2007,40(7):55-61.CHEN Yongqi,GENG Ruiqi,MA Liangzhe.Design and selection of fluid viscous devices for shock control of bridges[J].China Civil Engineering Journal,2007,40(7):55-61.
[9]BROWN W M,RAY N,MANDAL A.Tech Star lock-up devices&anti-seismic expansion joints in Southern Asia[C]//IABSE-JSCE Joint Conference on Advances in Bridge Engineering-II.Dhaka,Bangladesh,2010:360-365.
[10]康斯坦丁诺.桥梁地震保护系统[M].陈永祁,马良喆,译.北京:中国铁道出版社,2012:218-224.
[11]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.
[12]陈永祁.桥梁工程液体黏滞阻尼器设计与施工[M].北京:中国铁道出版社,2012:46-54.
[13]聂利英,李建中,胡世德,等.西堠门大桥3种梁端约束体系比较[J].桥梁建设,2006(6):73-75.NIE Liying,LI Jianzhong,HU Shide,et al.Comparison of three kinds of girder end constraint systems for Xihoumen Bridge[J].Bridge Construction,2006(6):73-75.
[14]CASTELLANO M G,COLATO G P,INFANTI S.Use of viscous dampers and shock transmission units in the seismic protection of buildings[C]//13th World Conference on Earthquake Engineering.Vancouver,Canada,2004:2172.
[15]叶爱君,范立础.附加阻尼器对大跨度斜拉桥的减震效果[J].同济大学学报:自然科学版,2006,34(7):859-863.YE Aijun,FAN Lichu.Seismic response reduction of a super-long-span cable-stayed bridge by adding dampers[J].Journal of Tongji University:Natural Science Edition,2006,34(7):859-863.
[16]GB50111-2006铁路工程抗震设计规范[S].北京:中国计划出版社,2009.
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