Developing A Desktop Platform for Evaluating Tall Building Wind-Induced Loads and Responses

开发用于评估高层建筑风致载荷和响应的桌面平台

• 批准号: 539945-2019
• 负责人: Aboshosha, Haitham
• 金额: $ 1.82万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 财政年份: 2019
• 资助国家: 加拿大
• 起止时间: 2019-01-01 至 2020-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=680458
• 关键词: Developing; Desktop; Platform; Evaluating; Tall

Wind is the main environmental stressor dictating the design of tall buildings. That is because of the tendency of tall buildings to respond dynamically to fluctuating wind forces and undergo significant vibrations. Design codes have several limitations when it comes to the evaluation of tall building wind-induced forces and responses. For example, design codes impose a limitation on the maximum building height, consider specific shape(s) and do not account for the building surrounding configuration.Thornton Tomasetti (TT) typically calls for wind engineering study involving wind tunnel WT testing (since design codes are limited to certain shapes and heights) to be able to quantify those forces and vibrations. The challenge is that the WT process typically requires several weeks/ months to complete which can be very preventive especially in early design stages. The research team at Ryerson University will develop a desktop platform to enable TT to quantify wind-induced response of tall buildings throughout this Engage grant. Such a desktop platform includes two components (i) a simplified structural dynamic analysis code and (ii) an aerodynamic database. The platform will be validated using a wind tunnel experiment to be conducted at Ryerson U. This desktop platform will empower TT to evaluate wind-induced forces and responses of tall buildings more efficiently . This will ultimately lead to more resilient tall buildings with a minimal undesirable effect to wind-related disasters frequently driven by the climate change. The proposed research will lead to the training of 2 HQPs (1 PhD, 1 MASc) in two priority research areas of the Canadian Government (climate change and wind-related disaster mitigation).

风是高层建筑设计的主要环境压力源。这是因为高层建筑往往会对波动的风力做出动态反应，并承受显著的振动。当涉及到高层建筑的风致力和响应的评估时，设计规范有一些限制。例如，设计规范对建筑物的最大高度施加限制，考虑特定的形状，而不考虑建筑物周围的配置。桑顿·托马塞蒂（Thornton Tomasetti）通常呼吁进行风洞WT测试的风工程研究（因为设计规范仅限于特定的形状和高度），以便能够量化这些力和振动。挑战在于，WT过程通常需要几周或几个月才能完成，这可能是非常预防性的，特别是在早期设计阶段。瑞尔森大学（Ryerson University）的研究团队将开发一个桌面平台，使TT能够在参与资助期间量化高层建筑的风致响应。这种桌面平台包括两个部分：(i)简化的结构动力分析代码和（ii）气动数据库。该平台将通过在瑞尔森大学进行的风洞实验进行验证。该桌面平台将使TT能够更有效地评估高层建筑的风致力和响应。这最终将导致更有弹性的高层建筑，对气候变化经常引起的与风有关的灾害的不良影响最小。拟议的研究将导致在加拿大政府的两个优先研究领域（气候变化和与风有关的减灾）培训2名HQPs（1名博士，1名硕士）。