Analysis and Design Guidelines for Buildings Subjected to Pounding Based on the Damage Observed from 1989 Loma Prieta Earthquake

这是1989年10月洛马普列塔地震后的一个调查项目，旨在从这次破坏性事件中吸取教训。本项目的重点是在实际损伤观测的基础上，研究相邻结构相互冲击的影响。目标是：(1)调查发生撞击的频率和类型，(2)分析评估撞击对几座观察到撞击造成结构破坏的建筑物的影响，(3)调查撞击的不利影响，(4)为工程师减轻冲击损伤提供指导。预期研究结果：对观测到的撞击损伤进行了总结，并对实际观测到的撞击损伤进行了分析研究，提出了一种针对遭受撞击的建筑物的建模程序和设计方法。以及一种减轻对现有相邻建筑的冲击破坏的方法。该研究将有助于更好地理解冲击现象和减轻冲击损伤的适当方法。

This is a post Loma Prieta earthquake (Oct. 1989) investigation project in learning from this damaging event. The focus of this project is to study the effects of pounding of adjacent structures against each other based on the actual damage observations. The objectives are: (1) to survey the frequency and types of pounding that occurred, (2) to evaluate analytically the effects of pounding on several buildings that had observed structural damage from pounding, (3) to investigate the adverse effects of pounding, and (4) to provide engineers with guidance to mitigate the damage from pounding. The expected research results: a summary of observed damage due to pounding, and analytical investigation to correlate with actual observed pounding damage, a proposed modeling procedure and a design method for buildings subjected to pounding, and a method of mitigating pounding damage on existing adjacent buildings. This study will lead to a better understanding of the phenomena and proper ways to mitigate the damages in connection with pounding.