Resilient Connections Between Hard Walls and Steel Frames in Metal Buildings

金属建筑中硬墙和钢框架之间的弹性连接

• 批准号: 1335181
• 负责人: Justin Marshall
• 金额: $ 19.13万
• 依托单位: Auburn University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-09-15 至 2017-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1335181&HistoricalAwards=false
• 关键词: Resilient; Connections; Between; Hard; Walls

This project will pursue research in understanding interaction between light metal building frame and hard masonry wall through energy absorbing and robust connections under seismic and wind loading. Analytical research will be pursued for initial development of connections. Experimental research will be conducted in the laboratory for viable connections that are configured to transfer wind loads as well as absorb energy to enhance seismic performance. The goal is to develop connections in masonry walls that will work with the metal frame to enhance resistance of the system under multiple hazards. An industrial advisory group will assist in selecting connections for their practicality in construction. The light frame metal buildings are widely used for industrial and commercial buildings; improving resiliency of these buildings will reduce economic losses in hazards.The research will be accomplished through a series of research tasks that include analytical modeling, experimental testing, development of a design methodology, and evaluation of system performance in multiple hazards. The first task will be to determine connection demands between stiff and flexible elements for seismic and wind events through analytical modeling. The second task will quantify the requisite strength, energy dissipation and connection deformation demands required to achieve enhanced performance. The third task will be design, analysis and comparative evaluation of energy dissipation and robustness of connections through nonlinear finite element analysis. Experimental testing of connections with high performance potential while being economical and constructible will follow. The final task will be assessment of building system for energy absorption capacity and robustness under wind and seismic loading. The education and outreach components include high school students attending Engineering Day, college students mentoring high school students and targeted outreach to professional practice.

该项目将通过在地震和风载下吸收和稳健的连接来了解轻型金属建筑框架和硬砌体壁之间的相互作用的研究。将进行分析研究以进行连接的初步发展。实验研究将在实验室中进行可行连接，这些连接配置为传递风荷载以及吸收能量以增强地震性能。目的是开发砌体墙中的连接，这些连接将与金属框架一起使用，以增强系统在多种危险下的阻力。一个工业咨询小组将协助选择建筑实用性的连接。轻型金属建筑被广泛用于工业和商业建筑。这些建筑物的弹性提高将减少危害的经济损失。研究将通过一系列研究任务来完成，包括分析建模，实验测试，设计方法的开发以及对多种危险中系统性能的评估。第一个任务是通过分析建模来确定地震和风事件的僵硬和灵活元素之间的连接需求。第二个任务将量化实现增强性能所需的必要强度，能量耗散和连接变形需求。第三个任务将是通过非线性有限元分析对能量耗散和鲁棒性的设计，分析和比较评估。具有高性能潜力的连接的实验测试，而经济和可构造将随后进行。最终任务将是对风和地震负荷下的能量吸收能力和鲁棒性的建筑系统评估。教育和外展成分包括参加工程学日的高中生，指导高中生的大学生以及针对专业实践的宣传。