Investigating the deflection due to hold-down systems in light frame wood shear walls

研究轻框架木剪力墙中压紧系统引起的偏转

• 批准号: 491571-2015
• 负责人: Doudak, Ghasan
• 金额: $ 1.82万
• 依托单位: University of Ottawa
• 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=586974
• 关键词: Investigating; deflection; due; hold; down

Focusing on the behaviour of wood shear walls has been an interest to researchers for many years. However, the focus has mainly been on establishing the capacity of the walls provided different construction detailing. For this purpose including a hold-down to resist the overturning moment on the wall and ensuring that the hold down does not fail before the wall is typically sufficient. Where research has lacked is in establishing a clear understanding of how the wall deflect when load is applied to it, especially when different hold-down devices are used. The proposed project aims to develop analysis and design methods to calculate the hold-down deflection characteristics. This will lead to a more optimized and safer design. Tests will be conducted at University of Ottawa Structural lab with a setup built specifically to test wood shearwall systems. The testing will include varying levels of wall aspect ratio, number of storeys and effect of gravity loads. Analytical and numerical (Finite element) models will be developed and validated using the experimental results. Better understanding of behaviour of connectors and shear wall elements under lateral load brings many benefits to Simpson Strong-Tie by opening new horizons in designing and developing more efficient connectors while meeting the structural needs. More research on connectors' behaviour will lead to more development, which expands the market, and provides more job opportunities, and as a result increases the company's overall profit

多年来，专注于木剪墙的行为一直是研究人员的兴趣。但是，重点主要是建立墙壁的容量提供了不同的构造细节。为此，包括固定限制，以抵抗墙上的倾覆时刻，并确保在墙壁通常足够之前不会失败。缺乏研究的地方是对将负载施加到其上时的墙壁偏转方式，尤其是在使用不同的固定设备时。 拟议的项目旨在开发分析和设计方法来计算固定偏转特征。这将导致更优化，更安全的设计。测试将在渥太华大学结构实验室进行，其设置专门用于测试木剪墙系统。该测试将包括不同水平的墙纵横比，楼层数量和重力负载的影响。将使用实验结果开发和验证分析和数值（有限元）模型。 通过在满足结构需求的同时，在设计和开发更有效的连接器方面打开新的视野，可以更好地理解横向负载下的连接器和剪力墙元素为Simpson Strong-tie带来许多好处。有关连接器行为的更多研究将导致更多的发展，从而扩大市场，并提供更多的就业机会，从而增加了公司的整体利润