CAREER: Comprehensive Research on Cold-Formed Steel Sheathed Shear Walls: Special Detailing, Design, and Innovation

这个教师早期职业发展（Career）项目的研究目标是缩小关于冷弯型钢抗侧力系统行为的知识差距，这些系统使用钢或木板覆盖的剪力墙。研究包括三个主要任务：1)设计一种独特的试验方法，研究冷弯型钢剪力墙在实际荷载条件下的性能，为评估现行规范规定的剪力墙强度提供可靠的试验数据。2)根据实验数据，建立准确的解析模型，预测不同护套材料冷弯型钢剪力墙的抗剪强度，并根据力学原理和数学模型提供设计方程。3)开发高性能剪力墙系统的先进设计，增强延展性和强度，适用于地震和强风地区的低成本建筑。这项研究的结果将为使用冷弯型钢剪力墙的建筑结构的安全和更经济的设计提供简化和改进的方法，众所周知，冷弯型钢剪力墙是可回收的，与木结构相比，它具有更好的防火性能。这项研究还将使在高层建筑中使用冷弯型钢墙变得可行，而不是现在在地震和大风地区使用。该项目的教育活动，包括动手实验、教学辅助工具和综合教材的开发，将改善对研究生和本科生的冷弯钢结构教学。这也将促进使用这种经济和可持续的建筑施工方法的专业兴趣。研究生将通过直接参与项目研究，接受研究方法方面的高级培训。研究结果将通过专业期刊和会议记录的出版物以及通过项目网站传播。

The research objective of this Faculty Early Career Development (CAREER) project is to close the knowledge gaps about the behavior of cold-formed steel lateral force resisting systems that use shear walls sheathed with steel or wood panels. The study includes three major tasks: 1) Configuring a unique testing method designed to investigate the performance of cold-formed steel shear walls under realistic loading conditions to provide reliable experimental data to evaluate the current code prescribed shear wall strengths. 2) Based on the experimental data, establish accurate analytical models to predict the shear strength of cold-formed steel shear walls made with different sheathing materials and to provide design equations based on the principles of mechanics and mathematical models. 3) Develop advanced designs of high-performance shear wall systems with enhanced ductility and strength for low cost building constructions in seismic and strong wind zones. The results of this research will provide simplified and improved methodologies for safe and more economical design of building structures using the cold-formed steel shear walls which are known to be recyclable and provide better fire resistance compared to wood construction. This research will also make it feasible to use the cold-formed steel walls in taller buildings than what has been possible now in seismic and high wind regions. The educational activities of the project with the developments of hands-on experiments and teaching aids and a comprehensive text book will lead to improvements in teaching about the cold-formed steel structures to both graduate and undergraduate students. This will also promote professional interest in the use of this economical and sustainable method of building construction. Graduate students will receive advanced training in research methods through their direct involvement in the project research. The research results will be disseminated through publications in professional journals and conference proceeding as well as through a project website.