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Dynamic performance evaluation of straight and curved cable-stayed bridges

Dynamic performance evaluation of straight and curved cable-stayed bridges Cable-stayed bridges with straight and curved deck geometry are studied for their free vibration response. A study on cable-stayed bridges with a single pylon with equal side spans is presented in this paper. Three-dimensional geometries of cable-stayed bridges with spans 120–240 m, A-shaped and H-shaped pylon are numerically investigated using FEM software ANSYS. Further response of straight bridges under El Centro earthquake loading is presented using dynamic time history analysis and the results are studied for different geometries. The effect of induced curvature in decks introduces coupling of different modes even at their initial phases whereas the modes are quite distinct in straight bridges. Under El Centro load time history bending stress, shear stress distribution in decks is studied for different geometries of straight bridges which gives the typical behaviour pattern of load sharing among the components of the cable-stayed bridge. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bridge Structures IOS Press

Dynamic performance evaluation of straight and curved cable-stayed bridges

Bhagwat, M.; Sasmal, S.; Novák, B.; Upadhyay, A.
Bridge Structures , Volume 5 (2) – Jan 1, 2009
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Publisher
IOS Press
Copyright
Copyright © 2009 by IOS Press, Inc
ISSN
1573-2487
eISSN
1744-8999
DOI
10.1080/15732480903142450
Publisher site
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Abstract

Cable-stayed bridges with straight and curved deck geometry are studied for their free vibration response. A study on cable-stayed bridges with a single pylon with equal side spans is presented in this paper. Three-dimensional geometries of cable-stayed bridges with spans 120–240 m, A-shaped and H-shaped pylon are numerically investigated using FEM software ANSYS. Further response of straight bridges under El Centro earthquake loading is presented using dynamic time history analysis and the results are studied for different geometries. The effect of induced curvature in decks introduces coupling of different modes even at their initial phases whereas the modes are quite distinct in straight bridges. Under El Centro load time history bending stress, shear stress distribution in decks is studied for different geometries of straight bridges which gives the typical behaviour pattern of load sharing among the components of the cable-stayed bridge.

Journal

Bridge Structures – IOS Press

Published: Jan 1, 2009

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