"PRESSS Phase III: Analytical Predictions of Five-Story Precast Superassemblage Test Structure Performance"

9708627 Sause本项目是预制抗震结构体系（PRESSS）协调研究计划的第三阶段的一部分。PRESSS项目由美国国家科学基金会资助，有两个目标：(1)为地震带预制混凝土建筑开发新材料、新概念和新技术；(2)对地震带预制混凝土结构提出全面合理的设计建议。PRESSS计划的前两个阶段已接近完成。为了实现这些目标，他剩下的工作是根据初步设计建议对大型预制结构设计进行测试，并使用PRESSS计划早期阶段开发的模型进行分析。PRESSS第三阶段计划需要三个组成部分来实现这些目标：(1)设计研究；(2)分析研究；(3)超组合试验。Englekirk and Nakaki, Inc.和华盛顿大学将进行设计研究，利大学将进行分析研究，加州大学圣地亚哥分校将对五层超组合测试结构进行实验。PRESSS第三阶段项目的利大学组成部分的目标是：(1)使用非线性静力分析来预测原型建筑的单调和循环侧向力位移行为，并使用非线性动力分析来评估五层超组合试验结构的这种行为，并评估其行为；(3)对预测性能与实验性能进行比较，并对分析预测中使用的模型和方法进行评估；(4)提出预制抗震结构体系的设计建议。将使用在利哈伊开发的预制结构的分析模型。动力分析将使用一组代表利哈伊不同地点特征的地震地面运动数据。将与设计中预期的原型建筑的性能进行比较，并与实验观察到的五层超组合测试结构的性能进行比较。分析研究将与第三阶段设计研究和超装配试验密切协调。

9708627 Sause This project is part of the third phase of a coordinated program of research on Precast Seismic Structural Systems (PRESSS). The PRESSS program, funded by the National Science Foundation has two goals: (1) to develop new materials, concepts, and technologies for precast concrete construction in seismic zones; and (2) to develop comprehensive and rational design recommendations for precast concrete construction in seismic zones. The first two phases of the PRESSS program are near completion. He remaining work to be done to achieve these objectives is the testing of a large-scale precast structure design according to preliminary design recommendations and analyzed using models developed in the earlier phases of PRESSS program. The PRESSS Phase III program requires three components to achieve these objectives: (1) design studies; (2) analytical studies; and (3) superassemblage tests. Englekirk and Nakaki, Inc. and the University of Washington will conduct design studies, Leigh University will conduct analytical studies, and the University of California, San Diego will conduct experiments on the five story superassembage test structure. The objectives of the Leigh University component this project of the PRESSS Phase III program are: (1) to use nonlinear static analysis to predict the monotonic and cyclic lateral force displacement behavior of prototype buildings, and to assess this behavior of the five-story superassemblage test structure using nonlinear dynamic analysis, and assess the behavior; (3) to compare the predicted performance and the experimental performance and assess the models and methods used in the analytical prediction; and (4) to develop design recommendations for precast seismic structural systems. Analytical models of precast structures developed at Lehigh will be used. The dynamic analysis will use a set of earthquake ground motions representing various site characteristics compiled at Lehigh. Comparisons with the performance of the prototype buildings anticipated in design, and with the experimentally observed performance of the five-story superassemblage test structure will be made. The analytical studies will be carefully coordinated with the Phase III design studies and superassemblage tests.