Authors : Seyyed Ashkan Mostajab Aldavat, Amirhosein Gholizadeh Zahmatkesh, Selma Teymouri and Majid Barazandeh Tehrani
Abstract: This study represents static and dynamic analysis of a steel arch bridge with box section. Steel arch bridge due to the axial bearing of the arch as the main part of the axial bearing has an appropriate mechanism to support vertical loads but when subjected to lateral loads such as earthquakes, they show complex behavior due to the irregularity and lack of lateral stiffness, probability of lateral buckling and etc. In this study, a linear static analysis is performed to determine the maximum amount of shift due to gravity loads preliminary, then a modal analysis is done to better understand dynamic behavior and characterize the dynamic characteristics of the bridge. Also a linear time history analysis is performed using single-component and three-component earthquake excitation records. Time history analysis results including the transverse, longitudinal and vertical recording shifts and maximum compressive axial force as well as bearing reactions in three dimensions are compared in single and three-component record mode.
Seyyed Ashkan Mostajab Aldavat, Amirhosein Gholizadeh Zahmatkesh, Selma Teymouri and Majid Barazandeh Tehrani, 2016. An Investigation of the Seismic Response of a Deck-Type Steel Arch Bridge. Journal of Engineering and Applied Sciences, 11: 951-957.