Vibration control of a high-rise structural development in downtown Toronto

多伦多市中心高层建筑开发的振动控制

• 批准号: 486047-2015
• 负责人: Mercan, Oya
• 金额: $ 1.82万
• 依托单位: University of Toronto
• 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=585358
• 关键词: Vibration; control; rise; structural; development

High-rise buildings are flexible structures with high sensitivity to dynamic excitation. For these types of buildings, vibration caused by ordinary wind loading may create problems from the viewpoint of serviceability and comfort of the occupants. Tuned liquid dampers (TLDs) are passive vibration absorbers that can be used to control wind-induced vibrations of high rise buildings. They have attracted attention as a result of their low cost, ease of installation and minimal maintenance requirements. Typically, the TLD is a liquid (generally water) filled tank that uses liquid sloshing action to dampen oscillations by tuning the sloshing of the liquid's natural frequency to the system's fundamental oscillation frequency. To enable the efficient design of a TLD, its behaviour and interaction with the structure need to be well understood. Stephenson Engineering is currently engaged as the structural consultants designing the One York Street and 90 Harbour Street Mixed Use Development in downtown Toronto. This development consists of a 35-storey commercial office building and two residential towers of 70 and 66-storeys. In addition to the three towers there is a significant retail/commercial podium and a four level underground parking garage. The control of the vibration of the tall residential towers to ensure the comfort of the occupants is one of the significant challenges on this project. In this collaborative research, the University of Toronto research group will develop a new multi-platform simulation tool to obtain the dynamic response of the Mixed Use Development residential towers equipped with TLDs. The numerical database that will be generated in this collaborative study will enable the efficient design of TLDs as cost-effective and maintenance-free supplemental energy dissipation devices; this will in turn facilitate safe and economical construction of taller structures.

高层建筑物是对动态激发的高灵敏度的柔性结构。对于这些类型的 建筑物，普通风负荷引起的振动可能会从可维修性的角度造成问题 和居住者的舒适。调谐液体阻尼器（TLDS）是被动振动吸收器，可用于 控制风引起的高层建筑物的振动。由于低点，他们引起了人们的关注 成本，易于安装和最少的维护要求。通常，TLD是液体（通常 水）用液体倾斜动作通过调谐液体的晃动来抑制振荡的水箱 系统基本振荡频率的固有频率。为了实现TLD的有效设计， 它的行为和与结构的互动需要充分理解。斯蒂芬森工程目前正在 作为设计One York Street和90 Harbour Street混合用途的结构顾问。 多伦多市中心的开发。该开发项目由35层的商业办公大楼和 两座住宅塔，分别是70层和66层。除了三塔之外，还有一个重要的 零售/商业讲台和四层地下停车场。高大振动的控制 确保居住者舒适的住宅塔是该项目面临的重大挑战之一。在 这项合作研究，多伦多大学研究小组将开发一个新的多平台 仿真工具以获得配备的混合用途开发塔的动态响应 与TLDS。该协作研究将生成的数值数据库将使有效 将TLDs设计为具有成本效益和无维护的补充能量耗散设备；这将在 转弯促进更高的结构的安全和经济结构。