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

9708627 SAUSE本项目是预制地震结构体系(PRESS)协调研究计划第三阶段的一部分。由国家科学基金资助的PRESS计划有两个目标：(1)开发用于地震区预制混凝土施工的新材料、新概念和新技术；(2)为地震区预制混凝土施工制定全面合理的设计建议。PRESS计划的前两个阶段即将完成。为了实现这些目标，仍需做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PRESS计划早期阶段开发的模型进行分析。PRESS第三阶段计划需要三个部分来实现这些目标：(1)设计研究；(2)分析研究；(3)超级组装测试。Englekirk和Nakaki公司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级组装测试结构进行实验。利大学PRESS第三阶段项目的目标是：(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组合试验结构的这种行为，并对其进行评估；(3)将预测性能与实验性能进行比较，并评估分析预测中使用的模型和方法；以及(4)为预制地震结构系统提出设计建议。将使用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场地特征的地震地面运动。将与设计中预期的原型建筑的性能进行比较，并与五层组合试验结构的试验观测性能进行比较。分析研究将与第三阶段设计研究和超级组装测试仔细协调。

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.