Closed-form dynamic stability criterion for elastic-plastic structures under near-fault ground motions
A dynamic stability criterion for Swaging Punch elastic-plastic structures under near-fault ground motions is derived in closed-form.A negative post-yield stiffness is treated in order to consider the P-delta effect.The double impulse is used as a substitute of the fling-step near-fault ground motion.Since only the free-vibration appears under such