Dynamics of a prestressed Timoshenko beam subject to arbitrary external load

摘要: The free vibration and transient wave in a prestressed Rayleigh-Timoshenko beam subject to arbitrary transverse forces are analyzed by the newly developed method of reverberation-ray matrix (MRRM). effects shear deformation rotational inertia taken into consideration. With Fourier transform technique, general solutions with two sets unknown amplitude coefficients obtained transformed domain for an unbonded under action external excitations. From coupling at joints compatibility displacements each member, forced responses various boundary conditions finally evaluated through certain numerical algorithms. Results presented simply-supported either point fixed load or moving load. Good agreement finite element (FEM) is obtained. present work instructive high-speed railway bridge design structural health monitoring.