Hot spot stresses in rectangular hollow section connections with vent and drain holes under branch axial load

支管轴向载荷作用下带通风孔和排水孔的矩形空心型材连接的热点应力

• 批准号: 530994-2018
• 负责人: Sun, Min
• 金额: $ 1.82万
• 依托单位: University of Victoria
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=666200
• 关键词: Hot; spot; stresses; rectangular; hollow

For hot-dip galvanizing of welded tubular trusses, holes to allow for filling, venting and drainage must be**specified. Since these holes will inevitably change the stress distribution at the joint location under loading, the**current method for determination of hot spot stresses for fatigue design does not apply. Falcon Galvanizing has**identified the need for research in this field. This research will generate formulae and charts for engineers to**determine the hot spot stresses in such connections with ease. The findings from the six-month project will**help the company propose improved fabrication specification to guide engineers and other specifiers to ensure**the intended service lives of galvanized tubular steel structures.

对于焊接管桁架的热浸镀锌，必须 ** 规定用于填充、通风和排水的孔。由于这些孔将不可避免地改变载荷作用下接头位置的应力分布，因此 ** 目前用于疲劳设计的热点应力确定方法不适用。Falcon Galvanizing已经确定了在这一领域进行研究的必要性。这项研究将产生公式和图表，为工程师 ** 确定热点应力在这样的连接容易。这个为期六个月的项目的结果将 ** 帮助该公司提出改进的制造规范，以指导工程师和其他指定人员确保 ** 镀锌钢管结构的预期使用寿命。