Evaluation, Prevention and Mitigation of Pounding Effects in Building Structures

摘要

Pounding between inelastic structures is investigated using an energy approach. Acomprehensive state of the art review is first presented. The main characteristics of the pounding problem are identified and formulated in terms of energy. A Pseudo Energy Radius concept is introduced to study: (1) the minimum gap size to avoid pounding; (2) the amplifications due to pounding; and (3) the evaluation of different pounding mitigation techniques, including the use of supplemental damping devices and shock absorbers. The formulations presented are then summarized to provide structural engineers with simple design/evaluation procedures to solve pounding problems. Building code considerations for pounding are also reviewed.