Development of aerodynamic database via CFD and wind tunnel testing: Application for the performance based wind design of high-rise wood-based buildings

通过CFD和风洞测试开发空气动力学数据库：在高层木结构建筑基于性能的风设计中的应用

• 批准号: 491067-2015
• 负责人: Bitsuamlak, Girma
• 金额: $ 1.82万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=586746
• 关键词: Development; aerodynamic; database; via; CFD

The ever increasing urban intensification in major Canadian cities is driving architects, owners, insurers, and municipalities to increase the use of taller wood-based buildings. A recent study conducted by the Canadian Wood Council on the life cycle assessment of buildings suggested to increase wood buildings in the current urban texture to improve its sustainability and reduce its carbon foot print. Therefore, the new National Building Code of Canada increased the height limit on wood frame buildings from four to six stories. However, recent projects around the world showed the use of "mass-timber" to exceed the code based height limitations, and makes tall timber buildings reality and technically possible. To make this initiative practical and rational for designers, a robust design guideline is needed. One of the anticipated challenge for wood-based structures is their light weight and that may make them vulnerable to strong wind. In addition wood-based structural systems are complex and require detail wind performance analysis. One of the important step towards addressing these challenges is the generation of detailed wind loads for selected building shapes. These wind loads preferably should be very detailed in their temporal and spatial distribution to enable complex dynamic analysis of these new wood-based structures. To this end, this project will produce aerodynamic data-base via computational fluid dynamics based computer models and wind tunnel based experiments. Timber is one of the most sustainable material with a low carbon foot print, its wider use will directly contribute to the green economy of Canada, thus enabling Canada achieve its goal of limiting the carbon foot print.

加拿大主要城市的城市集约化程度不断提高，这促使建筑师、业主、保险公司和市政当局增加对高层木结构建筑的使用。加拿大木材委员会最近进行了一项关于建筑生命周期评估的研究，建议在当前的城市肌体中增加木结构建筑，以提高其可持续性并减少其碳足迹。因此，新的加拿大国家建筑规范将木结构建筑的高度限制从四层增加到六层。然而，最近世界各地的项目表明，“大量木材”的使用超越了基于规范的高度限制，使高层木结构建筑成为现实和技术上的可能。为了使这一倡议对设计师来说实用和合理，需要一个强大的设计指南。对木质结构的预期挑战之一