[1]王浩,杨敏,陶天友,等.大跨度四塔悬索桥动力特性参数敏感性分析[J].东南大学学报(自然科学版),2016,46(3):559-564.[doi:10.3969/j.issn.1001-0505.2016.03.017]
 Wang Hao,Yang Min,Tao Tianyou,et al.Parameter sensitivity analysis on dynamic characteristics of long-span quadruple-tower suspension bridge[J].Journal of Southeast University (Natural Science Edition),2016,46(3):559-564.[doi:10.3969/j.issn.1001-0505.2016.03.017]
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大跨度四塔悬索桥动力特性参数敏感性分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
46
期数:
2016年第3期
页码:
559-564
栏目:
交通运输工程
出版日期:
2016-05-20

文章信息/Info

Title:
Parameter sensitivity analysis on dynamic characteristics of long-span quadruple-tower suspension bridge
作者:
王浩杨敏陶天友李爱群
东南大学混凝土及预应力混凝土结构教育部重点实验室, 南京 210096
Author(s):
Wang Hao Yang Min Tao Tianyou Li Aiqun
Key Laboratory of Concrete and Prestressed Concrete Structure of Ministry of Education, Southeast University, Nanjing 210096, China
关键词:
四塔悬索桥 动力特性 参数敏感性 有限元分析
Keywords:
quadruple-tower suspension bridge dynamic characteristic parameter sensitivity finite element analysis
分类号:
U448
DOI:
10.3969/j.issn.1001-0505.2016.03.017
摘要:
为了深入研究大跨度多塔悬索桥的动力特性,基于ANSYS软件建立了某大跨度四塔悬索桥的三维有限元模型,采用Block Lanczos法进行模态分析,以获得该桥的自振频率和振型,并分析了主缆矢跨比、恒载集度、主梁刚度以及中塔刚度等结构关键参数对其动力特性的影响.结果表明:该桥基频为0.071 71 Hz,对应振型为主梁一阶正对称侧弯;增大矢跨比有利于提高大桥颤振性能;随着恒载集度的增加,结构各阶自振频率均有不同程度的下降;增大主梁横向和扭转刚度可分别提高主梁侧弯和扭转频率,而增大主梁竖弯刚度对主梁竖弯频率影响较小;主梁一阶竖弯频率随着中塔纵向刚度的增大而显著提高.研究结果可为大跨度多塔悬索桥的结构设计与动力分析提供参考.
Abstract:
To investigate the dynamic characteristics of long-span multi-tower suspension bridges, the three-dimensional finite element model for a long-span quadruple-tower suspension bridge is established by ANSYS. Modal analysis is carried out by using the Block Lanczos method to obtain the natural frequencies and the mode shapes of the bridge. And the effects of the key structural parameters, including the sag-to-span ratio, the dead load, the stiffness of the main girder, and the rigidity of the mid-pylon, on the dynamic characteristics are analyzed. The results indicate that the fundamental frequency of the bridge is 0.071 71 Hz and the corresponding vibration mode is the first symmetric lateral bending mode of the main girder. The increase of the sag-to-span ratio can improve the flutter performance. With the increase of the dead load, the natural frequencies decrease with different degrees. When the lateral stiffness and the torsional stiffness of the main girder increase, the lateral vibration frequencies and the torsional vibration frequencies increase, respectively. However, the vertical stiffness of the main girder has little influence on the vertical vibration frequencies. The first vertical vibration frequency increases significantly with the increase of the longitudinal rigidity of the mid-pylon. The research results can provide reference for the structural design and dynamic analysis of long-span multi-pylon suspension bridges.

参考文献/References:

[1] 张劲泉,曲兆乐,宋建永,等.多塔连跨悬索桥综述[J].公路交通科技,2011,28(9):30-45,52. DOI:10.3969/j.issn.1002-0268.2011.09.006.
  Zhang Jinquan, Qu Zhaole, Song Jianyong, et al. Overview of multi-pylon multi-span suspension bridge[J]. Journal of Highway and Transportation Research and Development, 2011, 28(9): 30-45,52. DOI:10.3969/j.issn.1002-0268.2011.09.006.(in Chinese)
[2] Clemente P, Nicolosi G, Raithel A. Preliminary design of very long-span suspension bridges[J]. Engineering Structures, 2000, 22(12): 1699-1706. DOI:10.1016/s0141-0296(99)00112-1.
[3] 周云岗,肖汝诚.大跨径三塔缆索承重桥力学与经济性能[J].同济大学学报(自然科学版),2012,40(7):982-991. DOI:10.3969/j.issn.0253-374x.2012.07.004.
  Zhou Yungang, Xiao Rucheng. Economic and mechanical properties of large span three-tower cable supported bridges[J]. Journal of Tongji University(Natural Science), 2012, 40(7): 982-991. DOI:10.3969/j.issn.0253-374x.2012.07.004.(in Chinese)
[4] Gimsing N J, Georgakis C T. Cable supported bridges: Concept and design[M]. 3rd ed. Chichester, UK: John Wiley & Sons, 2012: 239-248.
[5] 陈艾荣,陈文明.多跨悬索桥的性能[C]//中国公路学会桥梁和结构工程学会2001年桥梁学术讨论会.北京,2001:561-566.
[6] Yoshida O, Okuda M, Moriya T. Structural characteristics and applicability of four-span suspension bridge[J]. Journal of Bridge Engineering, 2004, 9(5): 453-463.
[7] Wang H, Zou K, Li A, et al. Parameter effects on the dynamic characteristics of a super-long-span triple-tower suspension bridge[J]. Journal of Zhejiang University Science A, 2010, 11(5): 305-316.
[8] 王浩,程怀宇,陶天友,等.结构关键参数对三塔悬索桥动力特性的影响[J].振动、测试与诊断,2014,34(2):261-267. DOI:10.3969/j.issn.1004-6801.2014.02.010.
  Wang Hao, Cheng Huaiyu, Tao Tianyou, et al. Influence of key structural parameters on dynamic charateristics of a tripe-tower suspension bridge [J]. Journal of Vibration, Measurement & Diagnosis, 2014, 34(2): 261-267. DOI:10.3969/j.issn.1004-6801.2014.02.010.(in Chinese)
[9] Ernst H J. Der e-modul von seilen unter berücksichtigung des durchhanges[J]. Der Bauingenieur, 1965, 40(2): 52-55.
[10] Wang H, Tao T, Zhou R, et al. Parameter sensitivity study on flutter stability of a long-span triple-tower suspension bridge[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2014, 128: 12-21. DOI:10.1016/j.jweia.2014.03.004.
[11] 葛耀君.大跨度悬索桥抗风[M].北京:人民交通出版社,2011:237-250.
[12] 房贞政,张超,陈永健.三塔自锚式悬索桥动力特性及影响参数分析[J].地震工程与工程振动,2010,30(4):97-102.
  Fang Zhenzheng, Zhang Chao, Chen Yongjian. Dynamic characteristics analysis and parametric study of self-anchored suspension bridge with three towers[J]. Earthquake Engineering and Engineering Vibration, 2010, 30(4): 97-102.(in Chinese)
[13] 王浩,陶天友,郭彤,等.基于实测与规范风谱的三塔悬索桥抖振性能对比[J].东南大学学报(自然科学版),2013,43(5):986-992. DOI:10.3969/j.issn.1001-0505.2013.05.015.
  Wang Hao, Tao Tianyou, Guo Tong, et al. Comparable study on buffeting performance of triple-tower suspension bridge based on measured wind spectrum and specification wind spectrum[J]. Journal of Southeast University(Natural Science Edition), 2013, 43(5): 986-992. DOI:10.3969/j.issn.1001-0505.2013.05.015.(in Chinese)

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备注/Memo

备注/Memo:
收稿日期: 2015-10-06.
作者简介: 王浩(1980—),男,博士,研究员,博士生导师,wanghao1980@seu.edu.cn.
基金项目: 国家自然科学基金资助项目(51378111,51578151).
引用本文: 王浩,杨敏,陶天友,等.大跨度四塔悬索桥动力特性参数敏感性分析[J].东南大学学报(自然科学版),2016,46(3):559-564. DOI:10.3969/j.issn.1001-0505.2016.03.017.
更新日期/Last Update: 2016-05-20