Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic Reliability Analysis of Three-Dimensional Harp Type Cable Stayed Bridge
Cable-stayed bridges are getting popularity because they are economical for longer spans. The cable-stayed bridge is nonlinear and highly indeterminate. So, it is required that the various elements should be modelled properly to represent the actual behaviour of structure as close as possible. In this study, modelling of two spanned symmetrical cable-stayed bridge with H-type pylon and its validation using modal analysis in SAP2000. In the present work, the First order second moment (FOSM) method is used for seismic reliability analysis. The seismic reliability analysis of the bridge deck and tower was done with or without vehicular loading when subjected to El-Centro time history in longitudinal and transverse directions. In the present work, the parametric studies were conducted to study the effect of different parameters such as a change in pylon shape (Four types of pylons are considered), uniform phase lag of ground acceleration and shear wave velocity on seismic reliability. The study reveals that the greater the phase lag, greater is the reliability of the bridge. It also reveals that change in pylon shape has no influence on the reliability of the deck but it has more influence on reliability of tower in which it has been found that inverted Y-shape pylon has maximum reliability. The seismic reliability of both bridge deck and tower was found to be minimum for the soil having minimum shear wave velocity.
Seismic Reliability Analysis of Three-Dimensional Harp Type Cable Stayed Bridge
Cable-stayed bridges are getting popularity because they are economical for longer spans. The cable-stayed bridge is nonlinear and highly indeterminate. So, it is required that the various elements should be modelled properly to represent the actual behaviour of structure as close as possible. In this study, modelling of two spanned symmetrical cable-stayed bridge with H-type pylon and its validation using modal analysis in SAP2000. In the present work, the First order second moment (FOSM) method is used for seismic reliability analysis. The seismic reliability analysis of the bridge deck and tower was done with or without vehicular loading when subjected to El-Centro time history in longitudinal and transverse directions. In the present work, the parametric studies were conducted to study the effect of different parameters such as a change in pylon shape (Four types of pylons are considered), uniform phase lag of ground acceleration and shear wave velocity on seismic reliability. The study reveals that the greater the phase lag, greater is the reliability of the bridge. It also reveals that change in pylon shape has no influence on the reliability of the deck but it has more influence on reliability of tower in which it has been found that inverted Y-shape pylon has maximum reliability. The seismic reliability of both bridge deck and tower was found to be minimum for the soil having minimum shear wave velocity.
Seismic Reliability Analysis of Three-Dimensional Harp Type Cable Stayed Bridge
Structural Integrity
Fonseca de Oliveira Correia, José António (Herausgeber:in) / Choudhury, Satyabrata (Herausgeber:in) / Dutta, Subhrajit (Herausgeber:in) / Saraswat, Harish (Autor:in) / Ahmad, Shakeel (Autor:in) / Khan, Rehan Ahmad (Autor:in)
International Conference on Advances in Structural Mechanics and Applications ; 2021 ; Silchar, India
Advances in Structural Mechanics and Applications ; Kapitel: 1 ; 1-16
Structural Integrity ; 26
15.07.2022
16 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Seismic analysis of PC cable-stayed bridge
| British Library Online Contents | 2005
Analysis on Reasonable Structure of Main Girder of Harp Shaped Cable-Stayed Bridge without Backstays
| British Library Conference Proceedings | 2011
Analysis on Reasonable Structure of Main Girder of Harp Shaped Cable-Stayed Bridge without Backstays
| Trans Tech Publications | 2011
Seismic Study of A Cable-Stayed Bridge
| British Library Conference Proceedings | 1994