Limited ductility moment resisting frames with RHS columns

带 RHS 柱的有限延展性力矩抵抗框架

• 批准号: 567124-2021
• 负责人: Tousignant, Kyle
• 金额: $ 1.46万
• 依托单位: Dalhousie University
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=722500
• 关键词: Limited; ductility; moment; resisting; frames

Physical testing and analytical studies have been conducted over the last 25 years to develop steel moment connections and column splices for ductile and moderately ductile moment resisting frames (MRFs); however, research on connections for limited ductility (Type LD) MRFs - which are less expensive and easier to fabricate - has lagged. This glaring lack of attention has left a large part of the Canadian steel market, in regions of low and moderate seismicity, underserved.The primary objective of this research to develop non-proprietary, pre-qualified moment connections for Type LD MRFs, and improved design methods for field-bolted RHS-to-RHS column splices, that are effective (i.e., that meet code requirements) and easy to fabricate. This research is expected to make Type LD MRFs a more attractive and efficient building system, to keep Canada's (approximately) 4-billion-dollar steel industry competitive.

在过去的25年里，已经进行了物理试验和分析研究，以开发用于延性和中等延性抗弯框架(MRF)的钢弯矩连接和柱拼接；然而，针对有限延性(LD型)MRF的连接的研究一直滞后，这种连接更便宜，更容易制造。这项研究的主要目标是开发LD型MRF的非专有、预认证的弯矩连接，并改进现场螺栓RHS-RHS柱拼接的设计方法，有效(即，满足规范要求)和易于制造的设计方法。这项研究有望使LD型MRF成为一种更具吸引力和效率的建筑系统，以保持加拿大(约)40亿美元的钢铁行业的竞争力。