Seismic Vulnerability assessment of concrete railway bridge using nonlinear analyses

الموضوعات :

Araliya Mosleh ¹ (Department of Civil Eng., Faculty of Engineering, University of Aveiro, 3810-193 Aveiro, Portugal.)
Hamed Hamidi ² (Department of Civil Eng., Babol Noshirvani University of Technology, Iran)
Ahmad Nicknam ³ (Department of Civil Eng., Iran University of Science&Technology, P.O. Box 16765-163, Tehran, Iran)
José Jara ⁴ (Department of Civil Eng., Faculty of Engineering, Universidad Michoacana de San Nicolas de Hidalgo, Morelia, Mexico)
Humberto Varum ⁵ (CONSTRUCT-LESE, Department of Civil Eng., Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal)

تاريخ الإرسال : 03 الأحد , رجب, 1437 تاريخ التأكيد : 15 الإثنين , رمضان, 1437 تاريخ الإصدار : 22 الأربعاء , ربيع الأول, 1446

الکلمات المفتاحية: Nonlinear dynamic analysis, Concrete bridges, Seismic vulnerability, Nonlinear static analysis, Retrofitting,

ملخص المقالة :

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.