Review of Design Thickness Requirements for ASTM A500 HSS in Canada

加拿大 ASTM A500 HSS 设计厚度要求审查

• 批准号: 576991-2022
• 负责人: Tousignant, KyleK
• 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: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=749147
• 关键词: Review; Design; Thickness; Requirements; ASTM

The principal options for cold-formed hollow structural sections (HSS) in Canada are product manufactured to CSA G40 and ASTM A500. For CSA G40 HSS, a design wall thickness equal to the nominal thickness of the section is used for design; however, for ASTM A500 HSS, the Canadian Institute of Steel Construction (CISC) stipulates that a design wall thickness equal to 0.9 times the nominal thickness must be used. The design wall thickness requirement for ASTM A500 HSS was first introduced in 1974 and has been unchanged for nearly a half century. Over that same time period, methods of HSS production, material grades, sizes, and quality control procedures have evolved. The primary objective of this research is to conduct a systematic review of the design thickness requirement for ASTM A500 HSS in Canada. This review is expected to provide insight that will help increase the economy of structures (by reducing material requirements), encourage the use of ASTM A500 HSS, and improve the competitiveness of domestically produced steel.

在加拿大，冷弯空心结构型材（HSS）的主要选择是根据CSA G40和ASTM A500制造的产品。对于CSA G40 HSS，设计壁厚等于截面的标称厚度;但是，对于ASTM A500 HSS，加拿大钢结构协会（CISC）规定，必须使用等于标称厚度0.9倍的设计壁厚。ASTM A500高速钢的设计壁厚要求于1974年首次引入，近半个世纪来一直保持不变。在同一时期，高速钢的生产方法、材料等级、尺寸和质量控制程序也在不断发展。本研究的主要目的是对加拿大ASTM A500高速钢的设计厚度要求进行系统的审查。本次审查预计将提供有助于提高结构经济性（通过降低材料要求）的见解，鼓励使用ASTM A500 HSS，并提高国产钢的竞争力。