Flexural-Shear Base Mechanisms and Distributed Damping Systems for Combined Wind Efficiency and Seismic Resilience of High-Rise Buildings

弯曲剪力基座机构和分布式阻尼系统，实现高层建筑的风效和抗震能力相结合

• 批准号: 261367-2013
• 负责人: Christopoulos, Constantin
• 金额: $ 2.55万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 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=636503
• 关键词: Flexural; Shear; Base; Mechanisms; Distributed

Urbanization in Canada and across the world has resulted in a dramatic increase in the demand for high-rise buildings. Current structural systems and design strategies result in high-rise buildings that are inefficient with respect to controlling wind-induced vibrations, and are expected to sustain considerable damage after an earthquake. This research is focused on developing a new approach for the design of high-rise buildings where all critical elements are modular engineered systems that provide effective damping for both wind and earthquake loading and allow for the rapid inspection and repair of the structure immediately after an earthquake. The research will define these innovative structural systems for tall buildings, enhance the understanding of the theoretical dynamics of self-centering flexural-shear base systems with coupling damping elements, develop new simulation methodologies for predicting their dynamic response, and will result in a comprehensive integrated wind and earthquake performance based design methodology. This research will not only allow Canadian engineers to use these new systems in their designs in Canada but will also give Canadian consultants and contractors an edge to compete on the world scene for the design and construction of some of the world's tallest buildings.

加拿大和世界各地的城市化导致对高层建筑的需求急剧增加。目前的结构体系和设计策略导致高层建筑在控制风致振动方面效率低下，并且预计在地震后会遭受相当大的破坏。这项研究的重点是开发一种新的高层建筑设计方法，其中所有关键元素都是模块化工程系统，为风和地震荷载提供有效的阻尼，并允许在地震后立即对结构进行快速检查和维修。该研究将定义这些创新的高层建筑结构系统，提高对具有耦合阻尼元件的自定心弯剪基础系统的理论动力学的理解，开发新的模拟方法来预测其动态响应，并将导致一个全面的综合风和地震性能为基础的设计方法。这项研究不仅将使加拿大工程师在加拿大的设计中使用这些新系统，而且还将使加拿大顾问和承包商在世界舞台上竞争一些世界上最高建筑的设计和建造方面具有优势。