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Wind Load on Building Guardrails

建筑护栏上的风荷载

基本信息

批准号：
523563-2018
负责人：
Cheng, Shaohong
金额：
$ 1.82万
依托单位：
University of Windsor
依托单位国家：
加拿大
项目类别：
Engage Grants Program
财政年份：
2018
资助国家：
加拿大
起止时间：
2018-01-01 至 2019-12-31
项目状态：
已结题

来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=647462
关键词：
Wind Load Building Guardrails

项目摘要

Using larger format glass infill panels as building guardrails becomes more popular in recent design and construction of high-rise**buildings. For this kind of guardrails, wind load is an important component of the design load. However, no clear quantification is**available for the magnitude of the wind load acting on a guardrails, neither has any systematic on-site measurement or wind tunnel**study been performed to collect such information. Besides, there is no Canadian standard specifically deals with the design,**material or performance requirements for guardrails used in and around buildings. The current design approach adopted by Greco**and other designers is to assume that the wind-induced pressure on the guardrail is the same as the cladding pressure. This**would result in a much conservative design of larger, thicker and thus heavier glass infill panels which would add unnecessary**self-weight and cost to the building. To improve the structural efficiency of the building guardrail systems designed by Greco and**increase the competitiveness of the company in the market, the proposed project aims at conducting a comprehensive wind tunnel**study dedicated to quantify wind load on building guardrails. The wind-induced pressure on typical high-rise building balcony**models will be measured. The impact of various important parameters, including the size, the configuration, the supporting**condition and the installation location of the balcony, as well as the speed and the direction of the oncoming wind, on the**magnitude of the wind load on the balcony model will be investigated.

在最近高层建筑的设计和施工中，使用更大尺寸的玻璃填充面板作为建筑护栏变得越来越流行。对于这种护栏，风荷载是设计荷载的重要组成部分。然而，作用在护栏上的风荷载的大小**没有明确的量化，也没有任何系统的现场测量或风洞研究**来收集这些信息。此外，加拿大没有专门针对建筑物内和周围使用的护栏的设计、**材料或性能要求的标准。Greco**和其他设计师目前采用的设计方法是假设护栏上的风致压力与覆层压力相同。这**将导致更大、更厚、更重的玻璃填充面板的保守设计，这将增加建筑物不必要的**自重和成本。为了提高Greco设计的建筑物护栏系统的结构效率，并**增加该公司在市场上的竞争力，拟议的项目旨在进行一项全面的风洞**研究，致力于量化建筑物护栏上的风荷载。将测量典型高层建筑阳台**模型上的风致压力。研究了阳台的尺寸、配置、支撑条件和安装位置等重要参数，以及迎面风速和风向对阳台模型风荷载大小的影响。