HORIZONTAL VIBRATION FOR SHEAR WALL—SHEAR WALL ON FLEXIBLE SUPPORT—WALLED FRAME COOPERATING SYSTEM WITH STEPPED CROSS—SECTION BY ODE SOLVER

In this paper, firstly the cooperating system of shear wall, shear wall on flexible support and walled frame with stepped cross—section are simplified as a Timoshenko canti—lever beam on continuouselastic foundation with spring supports at the bottom end. Equations of horizontal vibration have been derived. Secondly, using the ODE (Ordinary Differential Equation) Solver, which is a program developed for solving various ODE, the fore five vibration frequencies and vibration modes have been obtained.