Modelling of timber buildings connections

木结构建筑连接建模

• 批准号: 567534-2021
• 负责人: ElDamatty, Ashraf
• 金额: $ 2.19万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2021
• 资助国家: 加拿大
• 起止时间: 2021-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=722523
• 关键词: Modelling; timber; buildings; connections

Wood is a renewable material so its use in construction provides many environmental benefits. However, when used in the construction of medium and high-rise buildings, light frame wood (LFW) systems, typically employed in houses, do not have enough strength to resist the applied environmental loads. An alternative material with advanced mechanical properties that could overcome the limitations of LFW is heavy timber. As the industry's goals shift to construct buildings that are more environmentally friendly, the demand for heavy timber is increasing. The connections between various elements, such as between beams and columns, and between the walls and the floors, are the challenging components of a heavy timber building. Those connections, which are usually made of steel, need to have enough strength and stiffness so timber buildings would achieve satisfactory performance under the loads resulting from strong wind and seismic events. In this proposal, detailed finite element (stress analysis) computer models, which simulate all parts of the connections including the timber components, the steel plates, the fasteners and the interaction between the timber and the steel, will be developed. An outcome of this research will be the development of standard connections that are compatible with different sizes of timber elements and forces that the connections can experience due to various environmental loads acting on timber buildings. Two Ontario companies will contribute to this research; Hassco a Steel Fabrication company and IE Design a Consulting Engineering Firm. A joint venture will be formed between Hassco and IE Design in this application where timber buildings will be designed by IE Design based on the connections produced by Hassco. The research will contribute to the spread of the use of heavy timber in the construction of high-rise buildings replacing concrete and steel. In addition to the environmental benefits, this will provide great advantages for Canada as one of the largest wood producing countries in the world. There is global demand to increase the use of natural materials in construction in order to limit carbon emission. Consequently, this research will be also of great impact internationally.

木材是一种可再生的材料，因此其在建筑中的使用提供了许多环境效益。但是，当用于建造中型和高层建筑时，通常在房屋中使用的轻型木材（LFW）系统没有足够的强度来抵抗所施加的环境负荷。具有高级机械性能可以克服LFW局限性的替代材料是沉重的木材。 随着行业的目标转向建造更环保的建筑物，对重型木材的需求正在增加。各种元素之间的连接，例如梁和柱之间，墙壁和地板之间的连接是重型木材建筑的挑战性组成部分。 这些通常由钢制成的连接需要具有足够的强度和刚度，以便木材建筑在强风和地震事件引起的负载下达到令人满意的性能。在此提案中，将开发详细的有限元（应力分析）计算机模型，该模型将开发出包括木材组件，钢板，紧固件以及木材和钢之间的相互作用，包括木材组件，钢板，紧固件和钢的相互作用。这项研究的结果将是标准连接的开发，这些连接与不同尺寸的木材元素和力量兼容，由于在木材建筑物上作用的各种环境负荷，连接可以体验到这些连接。两家安大略省的公司将为这项研究做出贡献。 Hassco一家钢铁制造公司和IE设计咨询工程公司。在此应用程序中，Hassco和IE设计之间将形成合资企业，其中IE设计将根据Hassco生成的连接设计。这项研究将有助于在建造高层建筑中使用重型木材的使用，以取代混凝土和钢。除了环境福利外，这将为加拿大成为世界上最大的木材生产国之一。为了限制碳排放，全球需求增加了自然材料的使用以限制碳排放。因此，这项研究在国际上也将产生巨大影响。