This paper presents a procedure for geometrically nonlinear static and dynamic analysis of cable-stayed bridges subjected to earthquake loading. The 12×12 tangent stiffness matrix and mass matrix of a 3 dimensional beam element with 6 degrees of free...
This paper presents a procedure for geometrically nonlinear static and dynamic analysis of cable-stayed bridges subjected to earthquake loading. The 12×12 tangent stiffness matrix and mass matrix of a 3 dimensional beam element with 6 degrees of freedom at each node are derived from the virtual work theorem and kinetic energy. Also the stiffness matrix of a cable element is derived using the equivalent modulus of elasticity.
Responses of the three types of cable-stayed bridges (H,R,A-type) subjected to the Imperial Valley Earthquake are obtained and compared with each other.
The results show that the cable-stayed bridge with A-type tower gives smaller lateral displacement at the top of the tower but larger axial stress in cables than the other ones.