An Experimental Investigation of the Dynamic Torsional- Translational Response of Reinforced Concrete Building Structrues

钢筋混凝土建筑结构动态扭转-平移响应的实验研究

• 批准号: 9023501
• 负责人: Mete Sozen
• 金额: $ 25.69万
• 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: 1991
• 资助国家: 美国
• 起止时间: 1991-01-15 至 1993-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9023501&HistoricalAwards=false
• 关键词: Experimental; Investigation; Dynamic; Torsional; Translational

This project has two overall goals: (a) to develop basic experimental data on the torsional-translational response of reinforced concrete structures in order to test the theory and improve numerical models for nonlinear behavior and (b) to seek relatively simple methods of representing the problem for design applications. Results of the experimental work will be evaluated by studies toward the goals indicated using nonlinear and modified linear models to represent observed behavior. Both dynamic interaction and material interaction affecting the coupled structural response will be investigated. The experiments involve a specially designed specimen which is free to rotate about its horizontal and vertical axes. The tendencies for rotation about Y and X are resisted by reinforced concrete beams. The inertia force is eccentric with respect to the vertical axis. The specimen configuration and the associated experimental setup permits the independent variation of mass, stiffness, and strength from specimen to specimen. Study will include earthquake-simulation testing of eight specimens to investigate the effects of type of earthquake motion, stiffness, and strength on combined torsional-translational response. The project targets at the intersection of theory and experiments, and through deliberately simple design of the test setup, tests existing theories and makes straightforward dynamic modeling possible.

该项目有两个总体目标：（a）开发钢筋混凝土结构扭转平移响应的基本实验数据，以测试理论并改进非线性行为的数值模型；（b）寻求相对简单的方法来表示设计应用的问题。 实验工作的结果将通过使用非线性和修改的线性模型来表示观察到的行为所指示的目标的研究来评估。 将研究影响耦合结构响应的动态相互作用和材料相互作用。 实验涉及一个专门设计的样本，该样本可以绕其水平轴和垂直轴自由旋转。 绕 Y 和 X 的旋转趋势受到钢筋混凝土梁的抵抗。 惯性力相对于垂直轴偏心。 样本配置和相关的实验设置允许样本之间的质量、刚度和强度独立变化。 研究将包括八个样本的地震模拟测试，以研究地震运动类型、刚度和强度对扭转平移组合响应的影响。 该项目的目标是理论与实验的交叉点，并通过刻意简单的测试设置设计，测试现有理论并使简单的动态建模成为可能。