A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pylon Shape Analysis of Cable-Stayed Bridges
Abstract Behavior of cable-stayed bridge is of great importance as the influence of moving loads, seismic, and wind forces on the cable-stayed bridge mainly depends on its characteristic behavior. The structure is of nonlinear nature and highly indeterminate. The analysis demands various elements of cable-stayed bridge to be modeled properly so as to represent the actual behavior of structures as close as possible. In the present work, various aspects of cable-stayed bridge are modeled using SAP-2000 software. The work is started with the basic model of two spanned symmetrical cable-stayed bridge. The analysis was done by taking six different pylon shapes for dead load and live load conditions as per IRC-6 2010. Then, the pylon shape which is having better responses is suggested. After this, a parametric study was conducted. The basic factors which affect the design of cable-stayed bridges are shape and stiffness of towers, areas of cables. In this study, it is intended to study the effect of shape of pylons, cable areas with different cable layouts on the response of cable-stayed bridges. Further modal analysis is carried out to determine the fundamental natural frequencies of bridges with different pylon shapes. The study is then extended for unsymmetrical cable-stayed bridges also, and appropriate pylon shape is suggested.
Pylon Shape Analysis of Cable-Stayed Bridges
Abstract Behavior of cable-stayed bridge is of great importance as the influence of moving loads, seismic, and wind forces on the cable-stayed bridge mainly depends on its characteristic behavior. The structure is of nonlinear nature and highly indeterminate. The analysis demands various elements of cable-stayed bridge to be modeled properly so as to represent the actual behavior of structures as close as possible. In the present work, various aspects of cable-stayed bridge are modeled using SAP-2000 software. The work is started with the basic model of two spanned symmetrical cable-stayed bridge. The analysis was done by taking six different pylon shapes for dead load and live load conditions as per IRC-6 2010. Then, the pylon shape which is having better responses is suggested. After this, a parametric study was conducted. The basic factors which affect the design of cable-stayed bridges are shape and stiffness of towers, areas of cables. In this study, it is intended to study the effect of shape of pylons, cable areas with different cable layouts on the response of cable-stayed bridges. Further modal analysis is carried out to determine the fundamental natural frequencies of bridges with different pylon shapes. The study is then extended for unsymmetrical cable-stayed bridges also, and appropriate pylon shape is suggested.
Pylon Shape Analysis of Cable-Stayed Bridges
Sharath, R. (author) / Ingle, R. K. (author)
2018-08-02
12 pages
Article/Chapter (Book)
Electronic Resource
English
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