Development of Seismic Design Guidelines for Steel Building Systems in Canada

钢结构建筑体系（SBS）是由轻质锥形钢构件组成的优化结构体系，具有快速和易于建造的特点。SBS是一种具有竞争力的结构类型，在北美具有重要的非住宅低层建筑市场份额。目前，SBS在加拿大并未被视为预合格的抗震力体系（SFRS） （CSA, 2014； NRCC, 2015）。SBS的抗震设计目前基于工程经验，SBS的设计通常使用加拿大传统建筑的程序。为了克服这个问题，加拿大钢板建筑研究所（CSSBI）不断投入研究，以了解SBS的地震反应。在过去的三年里，CSSBI和英属哥伦比亚大学（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。这项NSERC CRD研究资助旨在利用以前NSERC CRD研究的结果来模拟地震荷载下SBS的非线性动力响应。特别是，将使用最先进的有限元模型和以前NSERC CRD研究中开发的抗震性能评估框架设计和分析大范围的原型。在成功完成研究后，SBS的坚固抗震设计指南将用于加拿大的建筑。这将导致在加拿大和世界范围内使用更安全、更可靠的SBS。

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.