Seismic Vulnerability assessment of concrete railway bridge using nonlinear analyses

Journal of Structural Engineering and Geo-Techniques

مقاله 6، دوره 6، شماره 2، آذر 2016، صفحه 41-49   

نویسندگان

Araliya Mosleh^{* 1}؛ Hamed Hamidi²؛ Ahmad Nicknam³؛ José Jara⁴؛ Humberto Varum⁵

¹Department of Civil Eng., Faculty of Engineering, University of Aveiro, 3810-193 Aveiro, Portugal.

²Department of Civil Eng., Babol Noshirvani University of Technology, Iran

³Department of Civil Eng., Iran University of Science&Technology, P.O. Box 16765-163, Tehran, Iran

⁴Department of Civil Eng., Faculty of Engineering, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Mexico

⁵CONSTRUCT-LESE, Department of Civil Eng., Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal

چکیده

Bridges, as an essential part of transportation system, play a special role in economy, politic and military all around the world. Serviceability of bridges is of high importance especially in emergencies, helping injured people and proportioning transportation after earthquakes. Earthquake regulation codes, normally suggest linear methods to conduct the analysis, and nonlinear analysis is barely used by practicing engineers. In this paper, we analyze a typical concrete bridge located in Iran and use both nonlinear dynamic and static procedures at two hazard levels. This study compares both methodologies, analyze the results and presents some recommendations to reduce the seismic vulnerability.

کلیدواژه‌ها

Concrete bridges؛ Seismic vulnerability؛ Nonlinear dynamic analysis؛ Nonlinear static analysis؛ Retrofitting