Engineering Research Equipment Grant: Renovation and Up- grading of the Earthquake Simulator Capability

这是一笔设备赠款，用于升级和提高加州大学伯克利分校地震工程研究中心地震模拟器(振动台)设施的能力。20英尺。X 20英尺该振动台于1972年建成并开始运行，至今仍是美国最大的振动台之一。自从伯克利分校以及美国和世界各地的其他大学的教职员工进行研究以来，这个设施几乎一直在使用，由咨询公司的工程师提供，并为行业、公司和政府机构提供服务。虽然振动台仍在使用，但到1985年，很明显，该设施急需翻新。1986年，加利福尼亚州和国家科学基金会拨出资金，用于翻修这一设施，并探讨是否有可能在谈判桌上增加缺少的第三个跨国运动部分。这些拨款中设想的大部分翻修和改善工作已经完成。认识到在地震地面运动可能具有的三个跨国组成部分中实现表的同时能力的重要性，加州大学伯克利分校已拨出额外资金，用于设计、建造和安装必要的改造，以增加现有的电力。这一行动将有助于必要地将目前的液压油能力提升到目前能力的两倍左右。第三个跨国组成部分的增加将使对三维测试结构对多方向激励的响应进行综合分析和实验研究成为可能。该项目将把国家地震工程实验研究能力提升到一个新的水平，取得更高的潜在成果。

This is an equipment grant to upgrade and improve the capability of the earthquake simulator (shaking table) facility at the Earthquake Engineering Research Center of the University of California at Berkeley. The 20 ft. x 20 ft. shaking table that was completed, and began its operation, in 1972 is still one of the largest in the United States. This facility has been in use virtually continuously since its construction for research performed by faculty members at Berkeley and at other universities throughout the U.S. and the world, by engineers from consulting firms, and for services to industry, corporations and government agencies. Although the shaking table continues to be used, by 1985 it became evident that the facility was in serious need of renovation. In 1986 the State of California and the National Science Foundation allocated funds for the renovation of this facility as well as to explore the possibility of adding the missing third transnational component of motion to the table. Most of the renovation and improvement work contemplated in these allocations has been completed. In recognition of the importance of implementing simultaneous capability for the table in the three transnational components that a seismic ground motion can have, the University of California at Berkeley has allocated additional funds for the design, construction and installation of the modifications necessary to increase the existing electrical power. This action will provide support for the necessary upgrading of the present hydraulic fluid capacity to about twice the current capacity. The addition of the third transnational component will permit conducting integrated analytical and experimental research on the response of three-dimensional test structures to multi- directional excitations. This project will elevate the nation's earthquake engineering experimental research capability to a new level of higher potential achievements.