Design of braced tall-mass timber building

支撑大质量木结构建筑设计

• 批准号: 522347-2017
• 负责人: Tesfamariam, Solomon
• 金额: $ 1.82万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=640334
• 关键词: Design; braced; tall; mass; timber

The rapid growth of Canadians urban population and the associated environmental concerns are partlyinfluencing city planners and construction stakeholders to consider "Sustainable Urbanization" alternatives.The sustainable urbanization has emerged as a viable solution towards smart and liveable cities that areresilient and environmentally friendly. In 2015, the National Building Code of Canada has raised the heightlimits on timber frame construction from 4 to 6 storeys. As of 2017, the tallest tall-wood building, is an18-story Brock Commons student residency at the University of British Columbia (UBC). The primary lateralload resisting element, for wind and earthquake loads, is two concrete shear walls. This type of system isknown as hybrid building. Even though light timber frame construction is limited to 6-storey, with theintroduction of mass-timber buildings, coupled with innovative bracing system, in this proposal, it isenvisioned to extend the height to 30-story timber building and develop relevant design guideline. The bracingentails use of dampers and energy-dissipator connectors. It is envisioned that the design guideline wouldenhance the confidence of architects, structural engineers, owners and contractors, towards tall mass-timberbuildings. In the long term the final outcome of the proposed research would increase the volume of wood inbuildings, which will support the forestry business in Canada and engineers at Nordic in particular by:-maximizing the appropriate use of wood in public and private projects,-Strengthening Canada's capacity to produce high quality wood-based products and building systems, and-accelerating adoption of existing and emerging wood-based products and building systems.

加拿大城市人口的快速增长和相关的环境问题正在部分影响城市规划者和建设利益相关者考虑“可持续城市化”的替代方案。可持续城市化已成为实现智能和宜居城市的可行解决方案，具有弹性和环境友好性。2015年，加拿大国家建筑规范将木结构建筑的高度限制从4层提高到6层。截至2017年，最高的高木建筑是不列颠哥伦比亚省大学（UBC）的18层布洛克·康芒斯学生公寓。对于风荷载和地震荷载，主要的抗侧力单元是两个混凝土剪力墙。这种类型的系统被称为混合建筑。尽管轻型木结构建筑仅限于6层，但随着大量木材建筑的引入，加上创新的支撑系统，在本提案中，预计将高度扩展到30层木材建筑，并制定相关的设计指南。支架使用了阻尼器和耗能器连接器。据设想，设计指南将增强建筑师，结构工程师，业主和承包商的信心，对高层大规模木结构建筑。从长远来看，拟议研究的最终结果将增加建筑物中的木材数量，这将支持加拿大的林业业务，特别是北欧的工程师：-最大限度地在公共和私人项目中适当使用木材，-加强加拿大生产高质量木基产品和建筑系统的能力，以及-加速采用现有和新兴的木基产品和建筑系统。