The Dynamic Performance of Single-Tower Self-Anchored Suspension Bridges with Spatial Cable
The main cables of the single tower spatial cable suspension bridge are directly anchored in the stiffening girder. And the main cables are spatial. So there are obvious differences in dynamic characteristics between it and earth-anchored suspension bridges or plane cable ones. In this paper, a nonlinear finite element model about Dagu River Channel Bridge of Qindao Bay Bridge was established to analyze it's dynamic characteristics. The calculating results show that the modes of the bridge are rational and dense. The main cable anchored in the stiffening beam ends, so that the integral stiffness of the suspension bridge decreases and the natural period becomes longer. The bridge tower is single-pole tower whose lateral stiffness is weaken, so the transverse vibration of the tower appears earlier. There are five cable vibrations in the first ten modes, mainly due to low horizontal stiffness by smaller cable horizontal space.
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Supplemental Notes:
- Copyright © 2011 ASCE
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Wang, Yutian
- Jiang, Fuxiang
- Ma, Zongzhi
- Hao, Minglei
- Meng, Lingbo
- Kou, Hailei
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Conference:
- Third International Conference on Transportation Engineering (ICTE)
- Location: Chengdu , China
- Date: 2011-7-23 to 2011-7-25
- Publication Date: 2011
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 2110-2115
- Monograph Title: ICTE 2011
Subject/Index Terms
- TRT Terms: Anchorages; Bridge towers; Cables; Finite element method; Stiffness; Suspension bridges; Vibration
- Geographic Terms: China
- Subject Areas: Bridges and other structures; Highways; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 01446115
- Record Type: Publication
- ISBN: 9780784411841
- Files: TRIS, ASCE
- Created Date: Sep 14 2012 11:15AM