Development of Canadian seismic design procedures for precast shear wall buildings

加拿大预制剪力墙建筑抗震设计程序的发展

• 批准号: 571579-2021
• 负责人: Tobber, LisaL
• 金额: $ 3.41万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=743789
• 关键词: Development; Canadian; seismic; design; procedures

Precast concrete shear walls show potential for addressing some of Canada's urgent housing and commercial building demands with high quality and highly durable construction methods that are quick to assemble on site. However, there is a lack of knowledge about the seismic design of these systems in Canada, and there are no explicit seismic design provisions for precast concrete buildings in Canadian building codes. In this Alliance-Accelerate project, UBC researchers partner with the Canadian Precast/Prestressed Concrete Institute (CPCI) to address this urgent need. CPCI is a not-for-profit that is widely considered the leading authority in Canada for precast concrete design. Over the next four years, four graduate students will be trained in the seismic design, assessment, and development of precast concrete shear wall buildings. The overarching goal of this Alliance-Accelerate project is to develop scientifically-backed seismic design guidelines for Canadian precast concrete shear wall buildings. To achieve this goal, comprehensive numerical models will be developed to study the dynamic response of a range of precast concrete shear wall buildings. Using this comprehensive numerical study, the following objectives will be accomplished: 1) assess current state of practice and recommend restrictions in design, 2) improve current state of practice with new recommended design provisions, and 3) propose (i.e., develop design requirements for) a new precast concrete shear wall system for high-seismic regions. The research outcomes will be detailed design guidelines that can be used to propose changes to the building code, including precast-specific design guidelines, resulting in immediate, significant, and widespread impact. CPCI will be instrumental in ensuring the research outcomes of this project are sufficiently practical to meet the needs of the Canadian industry. With the need for high-performance systems with affordable construction costs, this research also provides an opportunity for precast concrete shear walls to be a seismic force-resisting system of choice and result in higher performance buildings constructed in Canada.

预制混凝土剪力墙显示出解决加拿大一些紧迫的住房和商业建筑需求的潜力，具有高质量和高度耐用的施工方法，可在现场快速组装。然而，加拿大对这些系统的抗震设计缺乏了解，加拿大建筑规范中没有明确的预制混凝土建筑抗震设计规定。在这个联盟加速项目中，UBC的研究人员与加拿大预制/预应力混凝土研究所（CPCI）合作，以解决这一迫切需求。CPCI是一个非营利组织，被广泛认为是加拿大预制混凝土设计的主要权威。在接下来的四年里，四名研究生将接受预制混凝土剪力墙建筑的抗震设计、评估和开发方面的培训。 该联盟加速项目的首要目标是为加拿大预制混凝土剪力墙建筑制定科学支持的抗震设计指南。为了实现这一目标，将开发全面的数值模型来研究一系列预制混凝土剪力墙建筑物的动态响应。利用这一全面的数值研究，将实现以下目标：1）评估目前的实践状态并建议设计限制，2）通过新的建议设计规定改善目前的实践状态，3）提出（即，为高地震区的新型预制混凝土剪力墙系统制定设计要求。研究成果将是详细的设计指南，可用于对建筑规范提出修改建议，包括预制具体的设计指南，从而产生直接，重大和广泛的影响。CPCI将有助于确保该项目的研究成果足够实用，以满足加拿大工业的需求。 由于需要高性能的系统，可负担的建设成本，这项研究也提供了一个机会，预制混凝土剪力墙是一个抗震系统的选择，并导致在加拿大建造的更高性能的建筑物。