Seismic Loss Estimation of Modular Steel Buildings****

模块化钢结构建筑的地震损失估算****

• 批准号: 535754-2018
• 负责人: Mercan, Oya
• 金额: $ 1.82万
• 依托单位: University of Toronto
• 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=659593
• 关键词: Seismic; Loss; Estimation; Modular; Steel

Due to its high strength to weight ratio steel is preferred as the construction material for high rise buildings. During the traditional construction of steel buildings the assembly of all the structural and non-structural components is done on the construction site. On the other hand, modular construction is a relatively new construction technique for steel structures where volumetric modules are fully constructed and finished in a factory, and they are assembled on-site to form a permanent building. This method has gained popularity due to reduced construction time and material waste, and increased quality. The application of modular construction for high-rise buildings is relatively recent around the world; and in Canada the current application of modular steel construction mainly consists of structures that are not more than three-stories in height. High-rise buildings are sensitive to earthquakes due to increased lateral load demand and their ductility and overstrength factors - key parameters for seismic design - depend on the building height. As the height of the modular steel building increases both the reserve of strength and ductility decrease. In the current version of the National Building Code of Canada, these factors are defined according to the seismic force resisting system only. The lack of understanding of the correlation between these two factors and the building height could lead to inadequate designs of high-rise modular steel buildings. Through detailed nonlinear static and dynamic analyses and by developing seismic loss estimation relationships, the proposed research will investigate the key seismic design parameters specifically for modular steel buildings. By combining the design experience of the industry partner and the expertise of University of Toronto's research team in advanced simulation and earthquake engineering, the results of this collaborative research will yield significant benefits for the Canadian modular construction sector.**

由于其高强度重量比，钢优选作为高层建筑的建筑材料。在传统的钢结构建筑施工中，所有结构和非结构部件的组装都是在施工现场完成的。另一方面，模块化建造是一种相对较新的钢结构建造技术，其中体积模块在工厂中完全建造和完成，并在现场组装以形成永久性建筑。这种方法由于减少了施工时间和材料浪费，并提高了质量而受到欢迎。在世界各地，模块化结构在高层建筑中的应用相对较新;在加拿大，目前模块化钢结构的应用主要包括高度不超过三层的结构。高层建筑对地震非常敏感，这是因为其横向荷载需求增加，并且其延性和超强系数（抗震设计的关键参数）取决于建筑物的高度。随着组合式钢结构建筑高度的增加，强度储备和延性储备都降低。在加拿大国家建筑规范的现行版本中，这些系数仅根据抗震系统来定义。对这两个因素与建筑高度之间的相关性缺乏了解可能导致高层模块化钢结构建筑的设计不足。通过详细的非线性静态和动态分析，并通过开发地震损失估计关系，拟议的研究将调查的关键抗震设计参数，特别是模块化钢建筑。通过结合行业合作伙伴的设计经验和多伦多大学研究团队在高级模拟和地震工程方面的专业知识，这项合作研究的结果将为加拿大模块化建筑行业带来重大利益。