Dynamic Response of Precast Concrete Frames (PRESSS)

预制混凝土框架的动态响应 (PRESSS)

• 批准号: 9307666
• 负责人: Daniel Abrams
• 金额: $ 18万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-08-01 至 1996-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9307666&HistoricalAwards=false
• 关键词: Dynamic; Response; Precast; Concrete; Frames

9307666 Abrams The project will investigate the use of existing analytical models for determining nonlinear dynamic response of precast concrete frame systems with ductile connections. Computational models developed previously within the PRESSS program will be verified by correlating computed response with measured response of three reduced scale structures. Each of the reduced scale frame systems will be constructed using frame connection details derived from full scale PRESSS experiments. Test structures will be subjected to an array of light, moderate and strong simulated earthquake motions using the Illinois shaking table. Hysteresis relations for reduced scale frame connections will be characterized for input to computational models based on results of a supplemental series of proposed static tests. In addition to verifying numerical models, dynamic response of the physical models will be used to suggest simplified analytical procedures for calculating dynamic response. Results of these simplified procedures will then be correlated with response computed with more complex models for verification. In addition, response computed using simplified models will be correlated with measured dynamic response of an actual precast frame building subjected to an earthquake. Once developed, the simplified analytical methods will be used to examine system response for various frame systems in different U.S. seismic zones with different site characteristics. This study will be h) 0*0*0* done with the purpose of extrapolating large scale component test data to design of frame structural systems across the nation. ***

9307666 Abrams 该项目将研究现有分析模型的使用，以确定具有延性连接的预制混凝土框架系统的非线性动态响应。 先前在 PRESSS 计划中开发的计算模型将通过将计算响应与三个缩小比例结构的测量响应相关联来进行验证。 每个缩小比例的框架系统都将使用从全尺寸 PRESSS 实验中获得的框架连接细节来构建。 测试结构将使用伊利诺伊州振动台进行一系列轻度、中度和强烈的模拟地震运动。 缩小比例框架连接的滞后关系将根据所提出的一系列补充静态测试的结果来表征，以便输入到计算模型中。 除了验证数值模型之外，物理模型的动态响应还将用于建议计算动态响应的简化分析程序。 然后，这些简化程序的结果将与用更复杂的模型计算的响应相关联以进行验证。 此外，使用简化模型计算的响应将与实际预制框架建筑遭受地震时测量的动态响应相关联。 一旦开发出来，简化的分析方法将用于检查美国不同地震带不同场地特征的各种框架系统的系统响应。 这项研究将 h) 0*0*0* 完成，目的是将大规模组件测试数据外推到全国框架结构系统的设计。 ***