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

职业：冷弯型钢外套剪力墙的综合研究：特殊细节、设计和创新

• 批准号: 0955189
• 负责人: Cheng Yu
• 金额: $ 40万
• 依托单位: University of North Texas
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2016-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0955189&HistoricalAwards=false
• 关键词: CAREER; Comprehensive; Research; Cold; Formed

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.

该教师早期职业发展（CAREER）项目的研究目标是缩小有关冷弯型钢抗侧力系统行为的知识差距，该系统使用钢或木板覆盖的剪力墙。本研究主要包括三个方面的工作：1）建立了一套独特的冷弯薄壁型钢剪力墙试验方法，用于研究冷弯薄壁型钢剪力墙在实际荷载条件下的性能，为现行规范规定的剪力墙强度评估提供可靠的试验数据。2)以试验数据为基础，建立准确的分析模型，预测不同覆板材料的冷弯薄壁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公式。3)开发先进的高性能剪力墙系统设计，增强延性和强度，用于地震和强风地区的低成本建筑结构。这项研究的结果将提供简化和改进的方法，安全和更经济的设计使用冷弯型钢剪力墙的建筑结构，这是已知的可回收利用，并提供更好的耐火性能相比，木结构。 这项研究还将使冷弯薄壁型钢墙在更高的建筑物中使用成为可能，而不是现在在地震和大风地区。该项目的教育活动与实践实验和教学辅助工具以及综合教材的开发将改善研究生和本科生的冷弯型钢结构教学。 这也将促进专业人员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获得研究方法的高级培训。研究结果将通过专业期刊和会议记录上的出版物以及项目网站传播。