Seismic Behavior and Design of Hybrid Wall Systems

9870927摘要本研究的重点是通过详细的非弹性动力分析，更好地了解混合墙系统的地震反应。 将考虑两种类型的混合墙系统，a）由实心或穿孔钢筋混凝土剪力墙和钢框架组成的结构系统，以及B）由钢梁耦合剪力墙和钢框架组成的结构系统。 调查包括三个相互关联的组成部分。 第一部分将集中于开发现有的有限元程序，以包括能够模拟墙板复杂行为的墙有限元。 第二部分涉及一些原型混合墙系统的设计使用目前现有的规定。 第三部分涉及使用开发的分析工具进行大量非弹性动态分析。 分析将集中在1）确定耦合剪力墙之间的最佳耦合程度，2）阐明剪力墙和弯矩框架之间的相互作用，3）建立用于确定墙和框架中的力分布的设计导向方法，3）建立用于确定墙和框架中的力分布的设计导向方法，4）评估目前推荐的混合墙系统及其构件的设计规定。本项目最重要的成果之一将是确定不同地震荷载水平和不同结构行为极限状态的性能指标。 这些数据将是非常宝贵的未来发展的性能为基础的设计标准的混合墙系统。该项目的支持下，第四年的竞争倡议NSF 94-154。

9870927AbstractThis research will focus on developing a better understanding of the seismic response of hybrid wall systems through detailed inelastic dynamic analyses. Two types of hybrid wall systems will be considered, a) structural systems comprised of solid or perforated reinforced concrete shear walls and steel moment frames, and b) structural systems comprised of steel-girder-coupled shear walls and steel moment frames. The investigation includes three interrelated components. The first component will focus on development of and existing finite element program to include wall finite elements capable of simulating the complex behavior of wall panels. The second part involves the design of a number of prototype hybrid wall systems using currently existing provisions. The third component involves conducting a large number of inelastic dynamic analyses using the developed analytical tools. The analyses will concentrate on 1) identifying the optimal degree of coupling between coupled shear walls, 2) shedding more light on the interaction between shear walls and moment frames, 3) establishing design oriented methods for determining the distribution of forces in the walls and frames, 3) establishing design oriented methods for determining the distribution of forces in the walls and frames, and 4) assessing currently recommended provisions for the design of hybrid wall systems and their components.One of the most important products of this project will be the determination of performance measures for different levels of earthquake loading and for different limit states of structural behavior. This data will be invaluable for the future development of performance based designed criteria for hybrid wall systems.This project is supported under the 4th year competition of initiative NSF 94-154.