Seismic analysis of high-speed railway bridge with prestressed reinforced concrete I-beam

In this study, non-linear dynamic analysis is obtained considering condition together train with seismic loads and separately on a railway bridge. The bridge used in the analysis is a railway bridge built with prestressed concrete I-beams. Bridge is a two-span that each of the spans is 20 m. A new computer software was written using the finite elements method for the analysis. SAP2000 is used to check the accuracy of the software. Lead rubber elastomeric bearings are used in the analysis. Artificial earthquake acceleration records produced using graphics acceleration spectrum proposed by DLH is used for seismic load. LM71 load rolling stock selected to train dynamic load and the bridge is considered to effect the situation over the two lanes. In analyzes displacement-time graphics with elastomeric bearings belonging to the force-displacement graph are compared with each other and in this way the effects of earthquakes on the bridge has been examined.