[1] Li Jianhui, Li Aiqun, Yuan Huihui, Li Xiping, et al. Spatial structural analysis of main saddle for single towerspatial cable self-anchored suspension bridge [J]. Journal of Southeast University (English Edition), 2009, 25 (3): 372-375. [doi:10.3969/j.issn.1003-7985.2009.03.018]

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Spatial structural analysis of main saddle for single towerspatial cable self-anchored suspension bridge()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

25

Issue:

2009 3

Page:

372-375

Research Field:

Traffic and Transportation Engineering

Publishing date:

2009-09-30

Info

Title:

Spatial structural analysis of main saddle for single towerspatial cable self-anchored suspension bridge

Author(s):

Li Jianhui¹;  Li Aiqun¹;  Yuan Huihui¹;  Li Xiping²

¹School of Civil Engineering, Southeast University, Nanjing 210096, China
²The Fourth Survey and Design Institute of China Railways, Wuhan 430063, China

Keywords:

self-anchored suspension bridge;  finite element;  main saddle;  spatial cable;  structural design

PACS:

U448.25;U443.38

DOI:

10.3969/j.issn.1003-7985.2009.03.018

Abstract:

Based on the engineering background of the Jiangxinzhou Bridge in Nanjing, issues related to the spatial main saddle of the self-anchored suspension bridge are studied.The refinement finite element model is established by the secondary development technology based on the platform of the general finite element program, and a reasonable load pattern is used in its spatial structural analysis, by which its path of force transference and stress distribution are obtained. Matched with the spatial main cable, the tangency point correction method is also discussed.The results show that the lateral wall stress of the saddle groove is higher than the stress within the wall due to the role of lateral forces in the finished bridge state;the horizontal volume force of the main cable can generate a gradient distributed vertical extrusion pressure on the saddle clamping device and the main saddle body;the geometric nonlinear effect of the self-anchored suspension bridge cable system in the construction process is significant, which can be reflected in the spatial tangent point position of the main cable with the main saddle changes a lot from free cable to finished cable.

References:

[1] Hu Jianhua, Chen Guanxiong, Xiang Jianjun, et al.Design considerations and innovative techniques of Pingsheng Bridge [J].Bridge Construction, 2006(2):28-31.(in Chinese)
[2] Shao Xudong, Deng Jun, Li Lifeng, et al.Cable anchorage structure of self-anchored suspension bridge [J].China Civil Engineering Journal, 2006, 39(7):81-87.(in Chinese)
[3] Qiu Wengliang, Zhang Zhe.Study on nonlinear error adjustment of self-anchored suspension bridge in construction [J].Journal of Highway and Transportation Research and Development, 2005, 22(6):72-74.(in Chinese)
[4] Kim C Y, Lee M J, Chang S P.Nonlinear shape-finding analysisof a self-anchored suspension bridge [J].Eng Struct, 2002, 4(12):1547-1559.
[5] Zhou Yongtao, Li Yiqiang, Tu Jingping, et al.Main cable design and computing of Tianjin Fumin Haihe Bridge [J].Highway, 2006, 12(12):1-4.(in Chinese)
[6] Li Chuanxi, Wang Lei, Liu Guangdong, et al.Separate calculation method on suspension bridge saddle’s position [J].China Journal of Highway and Transport, 2005, 18(1):63-69.(in Chinese)
[7] Luo Xiheng, Xiao Rucheng, Xiang Haifan.Cable shape analysis of suspension bridge with spatial cables [J].Journal of Tongji University:Natural Science Edition, 2004, 32(10):1349-1354.(in Chinese)

Memo

Memo:

Biographies: Li Jianhui(1976—), male, graduate;Li Aiqun(corresponding author), male, doctor, professor, aiqunli@sina.com.cn.
Foundation items: The National High Technology Research and Development Program of China(863 Program)(No.2006AA04Z416), the National Science Fund for Distinguished Young Scholars(No.50725828).
Citation: Li Jianhui, Li Aiqun, Yuan Huihui, et al.Spatial structural analysis of main saddle for single tower spatial cable self-anchored suspension bridge[J].Journal of Southeast University(English Edition), 2009, 25(3):372-375.

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