Cable measures to improve structural rigidity of large span three-tower cable-stayed bridge on highspeed railway

Author

Yi, Lunxiong ; Ye, Meixin ; Zhou, De

Author_Institution

Inst. Co., Ltd., China Zhongtie Major Bridge Reconnaissance & Design, Wuhan, China

fYear

2011

fDate

22-24 April 2011

Firstpage

5804

Lastpage

5807

Abstract

Based on Dongting Hu three-tower cable-stayed bridge on high-speed railway, different cable measures to improve structural rigidity were studied by using finite element method (FEM). The results show that it´s effective to adopt stiffening cables between towers to improve the rigidity of the bridge. The ratio of deflection to span (RODTS) with level stiffening cables is the smallest and the total axial force of these level stiffening cables is the biggest compared to other two arrangement modes with inclined and level-inclined stiffening cables respectively. Over lapped strengthening cables can effectively improve the rigidity of the bridge. The RODTS decrease with the increase of the number of the over-lapped strengthening cables. With the increase of the areas of the stay cables, the RODTS decrease approximately linearly.

Keywords

bridges (structures); finite element analysis; railway engineering; axial force; cable measures; finite element method; high speed railway; large span three-tower cable-stayed bridge; level stiffening cables; strengthening cables; structural rigidity; Bridges; Finite element methods; Force; Poles and towers; Rail transportation; Rivers; Structural beams; FEM; cable-stayed bridge; double main spans; high-speed railway; large span; rigidity; three-tower;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5775151

Filename

5775151