Seismic Behavior of Steel Moment-Resisting Frames with Composite Reinforced Concrete Infill Walls

本文进行了一个为期三年的试验和分析研究项目，以研究地震作用下带复合钢筋混凝土（RC）填充墙的抗弯钢框架的设计和性能。 该计划包括一系列的两个两层，一个海湾框架实验，循环剪切连接器实验，和一个全面的分析工作。 在钢框架-RC填充物体系中，钢梁和柱作为边界构件，抵抗地震倾覆引起的格沃特荷载和轴力，而RC填充物作为腹板，抵抗剪切。 本文将进行三分之一缩尺二层单跨框架的模拟地震荷载试验，以确定钢框架-RC填充墙组合墙体系的抗震性能。 将确定由钢框架和RC填充物提供给系统的强度和刚度的比例。 将对完全约束（弯矩）梁柱连接和部分约束进行测试。 此外，还将对连接件样本进行循环剪切试验，以量化循环剪切和轴向拉伸下剪力钉的强度。 数据分析加上线性和非线性分析的钢框架钢筋混凝土填充子组件将有助于建立分析和设计建议。 框架测试的实验观察结果，以及迄今为止进行的类似系统的所有现有实验数据，这些数据主要包括RC填充物的简单计算模型的几何形状、拓扑结构和本构特性（例如，有效的压缩支柱或膜元件）。 这是一个由NSF-94-154“复合材料和混合结构”研究计划第二年计划支持的项目。

A three-year experimental and analytical research program is undertaken to study the design and behavior of steel moment-resisting frames with composites reinforced concrete (RC) infill walls subjected to seismic excitations. The program includes a series of two two-story, one-bay frame experiments, cyclic shear connector experiments, and a comprehensive analytical effort. In the steel frame-RC infill system, the steel beams and columns act as boundary members resisting gavotte loads and axial forces from seismic overturning, while the RC infills serve as webs resisting shear. Simulated seismic load testing of one-third scale, two-story, one-bay frames will be conducted to determine the seismic behavior of steel frame-RC infill composite wall systems. The proportions of strength and stiffness provided to the system by the steel frame and the RC infills will be determined. Fully-restrained (moment) beam-to-column connections partially-restrained will be tested. In addition, cyclic shear tests of connector specimens to quantify the strength of shear studs under cyclic shear and axial tension will also be tested. Data analysis coupled with linear and nonlinear analysis of steel frame-RC infill subassemblages will serve to establish analysis and design recommendations. Experimental observations from the frame tests, coupled with all existing experimental data on similar systems conducted to date which consist mainly of geometry, topology, and constitutive properties of simple computational models for the RC infills (e.g., effective compression struts or membrane elements). This is a project supported under the second year program of research initiative `Composite and Hybrid Structures`, NSF-94-154.