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

关注木剪力墙的性能已经是研究人员多年的兴趣。然而，重点主要是建立墙的能力，提供不同的施工细节。为此，应包括一个压紧装置，以抵抗墙壁上的倾覆力矩，并确保在墙壁通常足够之前压紧装置不会失效。研究所缺乏的是建立一个清晰的理解，当负载施加到墙上时，特别是当使用不同的压紧装置时，墙是如何偏转的。 该项目旨在开发分析和设计方法来计算压紧变形特性。这将导致更优化和更安全的设计。测试将在渥太华大学结构实验室进行，该实验室专门用于测试木剪力墙系统。测试将包括不同水平的墙壁纵横比，层数和重力荷载的影响。将开发分析和数值（有限元）模型，并使用实验结果进行验证。 对连接件和剪力墙构件在横向荷载作用下的性能有了更好的理解，为辛普森强拉杆带来了许多好处，在满足结构需求的同时，为设计和开发更有效的连接件开辟了新的视野。对连接器行为的更多研究将导致更多的发展，这将扩大市场，并提供更多的就业机会，从而增加公司的整体利润

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