THE EFFECT OF LATERAL CONFIGURATION ON STATIC AND DYNAMIC BEHAVIOUR OF LONG SPAN CABLE SUPPORTED BRIDGES

Long span bridge is the demand of every nation and it could be achieved with use of enhanced materials. With the development of the high strength materials and techniques for analysis of bridge, long span cable supported bridge are introduced. Generally, cable supported bridges comprise both suspension and cable-stayed bridge. Cable supported bridges are flexible in behavior. These flexible systems are susceptible to the dynamic effects of wind and earthquake loads. With increasing span of the bridge the flexibility of the bridge is increasing. Here, attempt is made to improve the rigidity of long span bridge and presented in this research paper. For enhancing the rigidity of the bridge in lateral and vertical directions, different configuration of the cables of long span cable supported bridges is considered in this study. To understand the response of the long span cable supported bridges, modal Time History analysis is carried out in SAP2000 software. The behavior of the cable supported bridges is studied with different configuration of cables in lateral direction. The behavioral response of the bridge is presented in form of a Time Period in lateral and vertical direction for structural members of the bridge.