| Title |
Nonlinear Dynamic Response of R/C Structures using Approximate Eigenvalue Method |
| Abstract |
A computational precedure is presented for predicting the nonlinear dynamic response of planer frame R/C structures. In general, the nonlinear response may be computed by direct integration of the equations of motion or by mode superposition. With a specification of the initial conditions, the motion of nonlinear systems can be integrated to produce the response time history. However, the computational effort involved in appling these techniques which requires an update of the instantaneous stiffness can be quite time consuming. The cost and the amount of effort of a nonlinear dynamic analysis using the full system of equations may be prohibitive and practically unfeasible except on powerful computers unless a precedure to reduce the number of freedom is used. Thus an efficient dynamic analysis procedure which does not require the calculation of global stiffness at each time step is proposed. |