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该项目将研究使用现有的分析模型来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。 以前在“媒体程序”中开发的计算模型将通过将计算的响应与三个降低规模结构的响应相关联，可以验证。 每个简化的比例尺帧系统将使用从全尺度压榨实验得出的框架连接详细信息构建。 测试结构将使用伊利诺伊州摇晃的桌子进行一系列光，中等和强大的模拟地震运动。 基于补充一系列建议的静态测试的结果，将对计算模型的输入进行缩小框架连接的磁滞关系。 除了验证数值模型外，物理模型的动态响应还将用于建议简化的分析程序来计算动态响应。 然后，这些简化过程的结果将与使用更复杂的模型计算的响应相关。 此外，使用简化模型计算的响应将与经受地震的实际预制框架构建的测量动态响应相关。 一旦开发，简化的分析方法将用于检查具有不同位置特征的不同美国地震区域中各种框架系统的系统响应。 这项研究将是H）0*0*0*完成的目的是将大规模组件测试数据推送到全国框架结构系统的设计。 ***