In this study, static and dynamic analyses of fiber reinforced polymer (FRP) composite suspension bridges are investigated. Bosporus Suspension Bridge is selected for application. The real bridge model which composes of steel is also analysed. The results of analyses calculated for FRP and steel materials are compared with each other. The self-weight of the bridge is considered in the static analyses. Geometrical non-linearity and P-Δ effects are taken into consideration in the analyses. In dynamic analyses, time history method is used. Yarımca Petrochemistry Institution acceleration records of 1999 Kocaeli Earthquake are utilized as ground motion. Based on the steel material cross-sectional areas, the cross-sectional areas for FRP composites are determined by the Equivalent-Stiffness and Equivalent-Strength methods. The results show that FRP composite materials are feasible for suspension bridges because of the light weight, high elasticity modulus, high strength in comparison with the self weight, high stiffness, damping ratio and the resistance of environmental conditions etc.
Key Words: Suspension Bridge, Fiber Reinforced Polymer (FRP) Composite, Steel, Static Analysis, Dynamic Analysis, Equivalent-Stiffness, Equivalent-Strength