Please wait a minute...
ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2010, Vol. 11 Issue (5): 305-316    DOI: 10.1631/jzus.A0900496
Mechanics and Civil Engineering     
Parameter effects on the dynamic characteristics of a super-long-span triple-tower suspension bridge
Hao Wang, Ke-guan Zou, Ai-qun Li, Chang-ke Jiao
College of Civil Engineering, Southeast University, Nanjing 210096, China
Download:     PDF (0 KB)     
Export: BibTeX | EndNote (RIS)      

Abstract  A 3D finite element model for the Taizhou Yangtze River Bridge, the first triple-tower long-span suspension bridge in China, is established based on the nonlinear finite element software ABAQUS, and the dynamic characteristics of the bridge are analyzed using the LANCZOS eigenvalue solution method. The study focuses on the effects of the vertical, lateral and torsional stiffness of the steel box girder, the rigid central buckle and the elastic restraints connecting the towers and the steel box girder on the dynamic characteristics of the triple-tower suspension bridge. Our results show that, in general, the dynamic characteristics of the triple-tower suspension bridge are similar to those of two-tower suspension bridges. The vertical, lateral and torsional stiffness of the steel box girder have different effects on the dynamic characteristics of triple-tower suspension bridges. The elastic restraints have a more significant effect on the dynamic characteristics than the central buckle, and decreasing the stiffness of the elastic restraints results in the appearance of a longitudinal floating vibration mode of the bridge. Also, rigid central buckles have a greater influence on the dynamic characteristics of triple-tower suspension bridges than on those of two-tower suspension bridges. The results obtained could serve as a valuable numerical reference for analyzing and designing super-long-span triple-tower suspension bridges.

Key words： Suspension bridge      Taizhou Bridge      Triple-tower      Dynamic characteristics      Super-long-span     
Received: 12 August 2009      Published: 27 April 2010
CLC:  U448.25  
Service
E-mail this article
Add to my bookshelf
Add to citation manager
E-mail Alert
RSS
Articles by authors
Hao Wang
Ke-guan Zou
Ai-qun Li
Chang-ke Jiao
Cite this article:

Hao Wang, Ke-guan Zou, Ai-qun Li, Chang-ke Jiao. Parameter effects on the dynamic characteristics of a super-long-span triple-tower suspension bridge. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2010, 11(5): 305-316.

URL:

http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A0900496     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2010/V11/I5/305

[1] Xue-ming Shao, Jun Wan, Da-wei Chen, Hong-bing Xiong. Aerodynamic modeling and stability analysis of a high-speed train under strong rain and crosswind conditions[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2011, 12(12): 964-970.
[2] Hao Wang, Ai-qun Li, Chang-ke Jiao, Xing-ping Li. Characteristics of strong winds at the Runyang Suspension Bridge based on field tests from 2005 to 2008[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2010, 11(7): 465-476.
[3] Ping FANG, Qi-peng LI, Fan DING. A current-differential-based method for improving dynamic characteristics of electromagnetic actuators[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2009, 10(9): 1241-1244.
[4] Guo-fu ZHAI, Qi-ya WANG, Wan-bin REN. Research on electromagnetic relay’s dynamic characteristics disturbed by uniform static magnetic field[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(4): 577-582.
[5] Zhang Xin-jun. Advanced aerostatic analysis of long-span suspension bridges[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(3 ): 23-.
[6] ZHANG Xin-jun, SUN Bing-nan, XIANG Hai-fan. Three-dimensional nonlinear flutter analysis of long-span suspension bridges during erection[J]. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2003, 4(1): 21-27.