Seismic performance evaluation of steel building systems in Canada

加拿大钢结构建筑系统的抗震性能评估

• 批准号: 490887-2015
• 负责人: Yang, Tony
• 金额: $ 2.19万
• 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: 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=669209
• 关键词: Seismic; performance; evaluation; steel; building

Steel Building Systems (SBS) are prevalent in low-rise construction in North America. They account for approximately 50% of the total non-residential low-rise construction. SBS are cost effective, durable, expedited for construction scheduling, easy to expand and fully customizable for owners' needs. They are built in a variety of locations with a wide range of applications. In Canada, the National Building Code of Canada (NBCC) (NRCC, 2010) and handbook of steel construction (CSA-S16, 2009) do not consider SBS as one of the pre-qualified seismic force resisting systems. Designers typically follow the American design code (ASCE 7, 2010) where the buildings are designed as Ordinary Moment Resisting Frame. The design approach for Ordinary Moment Resisting Frame requires the member to remain compact, hence able to achieve stable energy dissipation. However, most SBS use non-compact structural members. The ability of using non-compact members as part of the Ordinary Moment Resisting Frame has not been verified analytically or experimentally. This leads to a knowledge gap for the seismic design of SBS in Canada. The proposed research will investigate the seismic design approaches for SBS in Canada. Nonlinear time history dynamic analyses of building systems will be carried out following an approach adopted from the Federal Emergency Management Agency (FEMA) P695 Quantification of Building Seismic Performance Factors (FEMA, 2009). Input earthquake records will be scaled to the site specific uniform hazard spectra for four representative cities in Canada, namely Vancouver, Calgary, Quebec City, and Halifax. The outcome of the research will provide a detailed understanding of the seismic performance of SBS in Canada. The analysis results will be further used to develop robust seismic design guidelines for SBS in high seismic zones in Canada and worldwide.

钢制建筑系统（SB）在北美的低层建筑中普遍存在。他们约占非住宅低层建筑总数的50％。 SB具有成本效益，耐用，加快施工计划，易于扩展和完全可满足所有者需求。它们是在各种应用程序中建造的。在加拿大，《加拿大国家建筑法典》（NBCC）（NRCC，2010年）和钢结构手册（CSA-S16，2009）并不认为SBs是抵抗资格的抗震力抵抗系统之一。设计师通常遵循美国设计代码（ASCE 7，2010），其中建筑物被设计为普通瞬间框架。普通力矩框架的设计方法要求成员保持紧凑，因此能够实现稳定的能量耗散。但是，大多数SB都使用非压缩结构成员。使用非压缩构件作为普通矩抗帧的一部分的能力尚未在分析或实验中验证。这导致了加拿大SBS的地震设计的知识差距。拟议的研究将调查加拿大SBS的地震设计方法。在联邦紧急事务管理局（FEMA）P695量化建筑地震绩效因素（FEMA，2009年）采用的方法之后，将进行建筑系统的非线性时间历史动态分析。对于加拿大，即温哥华，卡尔加里，魁北克市和哈利法克斯的四个代表性城市的特定统一危险光谱，输入地震记录将缩放到特定地点统一危险光谱。该研究的结果将详细了解加拿大SBS的地震性能。该分析结果将进一步用于制定加拿大和全球高地震区域中SB的强大地震设计指南。