PRESS Phase III Design Studies

9710735斯坦顿本项目涉及地震区预制混凝土结构系统的设计。 三个相互关联的研究是由不同的小组进行的，涵盖了大型预制混凝土结构的设计、实验室测试和分析。 该项目涉及设计，加州大学圣地亚哥分校正在进行大规模测试，利哈伊大学计划执行分析计划。 完整测试计划的总体目标是： o为预制混凝土提供设计建议 抗震框架系统， 证明抗震性能适合于 大多数地震严重地区可以通过预制 混凝土框架系统， o使用预制构件的完整超级装配， 研究行为的特征，这些特征不是在 静定梁柱节点 迄今为止已经测试过的样本。 研究中的任务包括测试结构的设计、测量和预测行为的有限比较以及最终设计建议的起草。 测试程序将提供所需的最后步骤，以使工程师和代码编写者获得所需的信息，以正式确定适当的设计规则并允许这种形式的构造。 将产生巨大的效益。 主要的是，将证明预制混凝土具有良好的抗震性能，并将制定适用于规范的设计规则。 当钢框架在其传统形式中被发现缺乏抗震性时，设计师在选择框架系统时几乎没有选择。 开发一种可行的备选方案有可能扩大设计备选方案的范围，提高性能，减少施工时间和成本。 ***

9710735 Stanton This project is concerned with the design of precast concrete structural systems for seismic regions. Three linked studies are by separate groups, covering the design, laboratory testing and analysis of a large scale precast concrete structure. This project addresses the design, the University of California at San Diego is conducting large-scale testing and Lehigh University plans to perform a program of analysis. The overall goals of the complete testing program are to: o provide design recommendations for precast concrete seismic framing systems, o demonstrate that seismic performance suitable for the most severe seismic regions can be provided by precast concrete framing systems, o use the complete superassemblage of precast elements to investigate features of behavior that are not induced in the statically determinate bean-column connection specimens that have been tested to date. The tasks in the study cover the design of the test structure, limited comparisons of measured and predicted behavior and drafting of the final design recommendations. The testing program will provide the final steps needed to equip engineers and code-writers with the information that they need to formalize suitable design rules and to permit this form of construction. Significant benefits will accrue. The primary ones are that excellent seismic performance will be demonstrated to be available from precast concrete and that design rules suitable for inclusion in a code will be developed. At a time when steel moment frames have, in their traditional form, been found wanting in seismic resistance, designers have few options in choosing a framing system. Development of a viable alternative has the potential for broadening the range of design alternatives, improving performance and reducing construction time and cost. ***