Development of Seismic Design Guidelines for Steel Building Systems in Canada

加拿大钢结构建筑系统抗震设计指南的制定

• 批准号: 542514-2019
• 负责人: Yang, Tony
• 金额: $ 2.62万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development 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=720666
• 关键词: Development; Seismic; Design; Guidelines; Steel

Steel building systems (SBS) are optimized structural systems composed by lightweight tapered steel elements that are fast and easy to build. SBS are a competitive structural typology that have significant non-residential low-rise construction market shares in North America. Currently, SBS are not considered as a pre-qualified seismic force resisting system (SFRS) in Canada (CSA, 2014; NRCC, 2015). Seismic design of the SBS is currently based on engineering experiences and SBS are typically designed using the procedure outlined for conventional constructions in Canada. To overcome this issue, the Canadian Steel Sheet Building Institute (CSSBI) has continuously invested in research to understand the seismic response of SBS. For the past 3 years, CSSBI and researchers at the University of British Columbia (UBC) have worked together to reduce the knowledge gap. Results from the research shows the SBS structural components have some energy dissipation capacities, but the performance of the SBS have variable margin of safety against collapse. This NSERC CRD research grant is targeted to utilize the findings from the previous NSERC CRD research to simulate the nonlinear dynamic response of the SBS under seismic loads. In particular, a large range of archetypes will be designed and analyzed using the state-of-the-art finite element models and the seismic performance assessment framework developed in the previous NSERC CRD research. Upon successful completion of the research, robust seismic design guidelines for SBS will be developed for constructions in Canada. This will result to safer and more reliable SBS to be used in Canada and worldwide.

钢结构建筑系统（SBS）是由轻质锥形钢构件组成的优化结构系统，快速且易于建造。SBS是一种具有竞争力的结构类型，在北美的非住宅低层建筑市场占有重要份额。目前，在加拿大，SBS不被视为一种经过资格预审的抗震系统（SFRS）（CSA，2014; NRCC，2015）。SBS的抗震设计目前基于工程经验，SBS通常使用加拿大常规建筑概述的程序进行设计。为了克服这个问题，加拿大钢板建筑研究所（CSSBI）不断投资研究，以了解SBS的地震反应。在过去的3年里，CSSBI和不列颠哥伦比亚省大学（UBC）的研究人员共同努力缩小知识差距。研究结果表明，SBS结构构件具有一定的耗能能力，但其抗倒塌安全裕度是可变的。该NSERC CRD研究补助金旨在利用以前NSERC CRD研究的结果来模拟SBS在地震荷载下的非线性动力响应。特别是，将使用最先进的有限元模型和在以前的NSERC CRD研究中开发的抗震性能评估框架来设计和分析大量原型。在成功完成研究后，将为加拿大的建筑制定SBS的稳健抗震设计指南。这将导致更安全和更可靠的SBS在加拿大和世界各地使用。