Dynamic analysis of T-Beam bridge superstructure

Generally, structures are subjected to two types of load: static and dynamic. However, the majority of civil engineering structures are designed with the assumption that all applied loads are static. The effect of dynamic load is not considered because the structure is rarely subjected to dynamic loads; more so, its consideration in analysis makes the solution more complicated and time consuming. This feature of neglecting the dynamic forces may sometimes become the cause of disaster, particularly in the case of earthquake. Nowadays, there is a growing interest in the process of designing structures capable to withstand dynamic loads, particularly, earthquake-induced load. This is needed to be done, because, in present scenario where earthquakes are occurring frequently, dynamic force cannot be neglected. Therefore it is proposed to do "dynamic analysis of bridge deck" for various span of bridge by varying no. of longitudinal girders. The detailed study is carried out for "TBeam Bridge", for two lane and four lane of spans 15m, 20m, 25m, 30m, 35m using IRC class A loading. For analysis SAP2000 software is used. Finally, to envelope the serviceability, the bridge responses are obtained.