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，研究人员一直对木质剪力墙的性能感兴趣。然而，重点主要是建立提供不同结构细节的墙壁的能力。为了达到这个目的，包括一个按住以抵抗墙壁上的倾覆力矩，并确保在墙壁之前按住不会失效，这通常就足够了。研究缺乏的地方是建立一个清晰的认识，即当负载施加到墙壁上时，特别是当使用不同的压紧装置时，墙壁是如何挠曲的。