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

该学院早期职业发展(CAEREAR)项目的研究目标是弥合有关冷弯型钢抗侧力体系性能的知识空白，该体系使用钢材或木板护套的剪力墙。本研究主要包括三个方面的工作：1)建立一套独特的试验方法，研究冷弯薄壁型钢剪力墙在实际荷载作用下的受力性能，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)在试验数据的基础上，建立了准确的分析模型，对不同保护层材料的冷弯薄壁剪力墙的抗剪强度进行了预测，并根据力学原理和数学模型给出了设计公式。3)开发高性能剪力墙体系的先进设计，提高延性和强度，用于地震区和强风区的低成本建筑。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。冷弯型钢剪力墙被认为是可回收的，与木结构相比具有更好的耐火性能。这项研究还将使冷弯形钢墙在比现在地震和大风地区更高的建筑中使用是可行的。该项目的教育活动，以及动手实验和教具的开发，以及一本综合教材的编写，将有助于改进对研究生和本科生的冷弯薄壁型钢结构教学。这也将促进专业人士对使用这种经济和可持续的建筑方法的兴趣。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。研究成果将通过专业期刊和会议记录上的出版物以及通过一个项目网站传播。

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.