Development of innovative approaches for ensuring cost-effective global robustness of steel structures

开发创新方法，确保钢结构具有成本效益的全球稳健性

基本信息

批准号：
239020-2010
负责人：
Driver, Robert
金额：
$ 3.06万
依托单位：
University of Alberta
依托单位国家：
加拿大
项目类别：
Discovery Grants Program - Individual
财政年份：
2019
资助国家：
加拿大
起止时间：
2019-01-01 至 2020-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=688449
关键词：
Development innovative approaches ensuring cost

项目摘要

Fortunately, structural collapse is a rare event, but it can happen due to a variety of potential triggers. "Progressive collapse" scenarios result in the extent of collapse within a structure being grossly disproportionate to the magnitude of the event that initiated it. This phenomenon has been observed in high-profile events such as the collapse of the Alfred P. Murrah Federal Building in Oklahoma City. Although cases of this magnitude are relatively rare, progressive collapse events that are less publicised also occur.This research will develop new ways of designing steel structures economically in a way that will increase their resistance to progressive collapse failures, should localised damage be imparted due to accidental or intentional explosion, impact, extreme environmental loading (such as earthquakes or tornado/hurricane damage), structural deficiency, or any other unexpected, but extreme, event. The research will involve large-scale testing of structural components, as well as computer simulations of structures that mimic global structural behaviour in the damaged state.Arising from this research program will be specific design guidance that will maximise structural integrity and robustness of steel structures, while keeping economics as a key consideration. These guidelines will be recommended for implementation into design codes and standards within Canada and internationally in order to prevent progressive collapse from occurring as a result of localised structural damage.

幸运的是，结构倒塌是一种罕见的事件，但它可能由于各种潜在的触发因素而发生。 “渐进式倒塌”情景会导致结构内倒塌的程度与引发倒塌的事件的严重程度严重不成比例。这种现象在俄克拉荷马城阿尔弗雷德·P·默拉联邦大楼倒塌等备受瞩目的事件中得到了观察。尽管这种规模的案例相对罕见，但较少公开的渐进式倒塌事件也时有发生。这项研究将开发经济地设计钢结构的新方法，以提高钢结构对渐进式倒塌破坏的抵抗力，以防因局部损坏而造成钢结构损坏。意外或故意爆炸、撞击、极端环境载荷（例如地震或龙卷风/飓风损坏）、结构缺陷或任何其他意外但极端的事件。该研究将涉及结构部件的大规模测试，以及模拟受损状态下整体结构行为的结构的计算机模拟。该研究计划将提供具体的设计指导，最大限度地提高钢结构的结构完整性和坚固性，同时将经济性作为关键考虑因素。这些指南将被建议在加拿大和国际上的设计规范和标准中实施，以防止局部结构损坏导致逐渐倒塌。