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

这个项目有两个总体目标：(a)发展钢筋混凝土结构扭转-平动响应的基本实验数据，以检验理论和改进非线性行为的数值模型；(b)寻求相对简单的表示方法设计应用的问题。实验工作的结果将通过使用非线性和修正的线性模型来表示观察到的行为来实现目标的研究来评估。将研究影响耦合结构响应的动力相互作用和材料相互作用。实验涉及一个特别设计的试样，它可以围绕其水平轴和垂直轴自由旋转。围绕Y和X的旋转趋势受到钢筋混凝土梁的抵制。惯性力相对于纵轴是偏心的。试样配置和相关的实验设置允许质量、刚度和强度从试样到试样的独立变化。研究将包括八个试件的地震模拟试验，以研究地震运动类型、刚度、以及扭转-平移联合响应的强度。该项目的目标是理论和实验的交叉点，通过刻意设计简单的测试装置，测试现有的理论，并使直接的动态建模成为可能。

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.