U.S. Costa Rica Workshop on the Effects on Soils and Structures of the 1990 and 1991 Costa Rican Earthquakes

该项目将组织，召集 和报告， 1991年4月22日，Costa 哥斯达黎加地震。 这次地震 提供了一个独特的机会， 研究结构的性能 坐落在非常柔软和可折叠的 土壤 讲习班打算 研究和鉴定分析， 改造和设计技术， 减轻土壤贫瘠时的损害 条件是存在的。 它侧重于 确定哪些领域 需要研究， 提出切实可行的解决办法 对于现有结构， 强调生命线（桥梁， 水和电力系统， 紧急服务和关键 工业设施）。 的 结果将直接适用于 美国的做法，因为大 美国的一些地区，包括 旧金山弗朗西斯科湾区 密西西比河谷，以及 几个东海岸地震区 很容易受到 如果遇到类似的问题， 强烈的地面震动

The project will organize, convene and report on a workshop on the effects of the April 22, 1991 Costa Rica earthquake. This earthquake presents an unique opportunity to study the performance of structures sited on very soft and liquefiable soils. The workshop intends to study and identify analysis, retrofit, and design techniques to mitigate damage when poor soil conditions exist. It focuses on identifying areas where more research is needed and on recommending practical solutions for existing structures, with emphasis on lifelines (bridges, water and electrical systems, emergency services, and key industrial facilities). The results will be directly applicable to the U.S. practice since large areas of the U.S., including the San Francisco Bay Area, the Mississippi River Valley, and several East Coast seismic regions are potentially vulnerable to similar problems if subjected to strong ground shaking.