Seismic behaviour of tall reinforced masonry shear walls

高配筋砌体剪力墙的抗震性能

• 批准号: 552325-2020
• 负责人: Yang, Tony
• 金额: $ 7.14万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=703312
• 关键词: Seismic; behaviour; tall; reinforced; masonry

Reinforced masonry (RM) has been used in Canada for more than 50 years, mostly for construction of low- and medium-rise buildings. The National Building Code of Canada 2015 (NBC 2015) permits the use of Ductile Shear Wall class for tall masonry buildings, but the height limit was set to 60 m (approximately 20 storeys) at sites characterized by moderate seismic hazard index (0.75 or less), and to 40 m (approximately 13 storeys) for high seismic hazard sites (seismic hazard index higher than 0.75). Although the NBC 2015 permits application of ductile RM wall class for construction of tall buildings in Canada, with the height limits comparable to buildings with RC shear walls, actual field applications of these buildings are still very limited. Only a few tall (20+ storey high) RM buildings have been constructed in Canada to date, mostly at sites with low to moderate seismic hazard. Limited field applications of tall buildings in Canada can be partially attributed to a scarce database of past experimental research studies on the subject. The proposed project will examine seismic response of Tall Reinforced Masonry (TRM) shear walls for field applications in Canada with opportunities to export this knowledge to other countries. The proposal includes a robust experimental and analytical research program which will be carried out at the University of British Columbia, Vancouver campus. Seismic response of TRM shear wall specimens characterized by high aspect ratios (in the range from 7.0 to 25.0) will be examined at the material, structural component, and structural system level. A hybrid experimental and numerical simulation will be performed at the system level to study seismic response of TRM buildings subjected to earthquake excitation. This is believed to be the first application of hybrid technology on TRM wall structures on a global scale. The experimental program proposed in this project will provide much needed experimental evidence related to seismic performance of TRM shear walls which is required for developers, architects, and engineers engaged in design and construction of tall buildings. The guidelines resulting from the experimental and analytical studies will provide required tools for design engineers who currently do not have adequate training related to design of tall masonry buildings.

加拿大砌体（RM）已在加拿大使用了50多年，主要用于建造中型和中层建筑。 《加拿大国家建筑法典》 2015年（NBC 2015）允许使用延性剪切墙类用于高层砌体建筑物，但高度极限设置为以中等地震危险指数（0.75或更少）为特征的地点（大约20层）（约为0.75）（0.75），而高于Seismic seismic seiSISMIC Hakard Sites（SEEMIC HAIMASSICSISEX）（大约13层）。 尽管NBC 2015允许将延性RM墙类应用于加拿大建造高建筑物，其高度限制与带有RC剪切墙的建筑物相当，但这些建筑物的实际现场应用仍然非常有限。迄今为止，在加拿大建造了只有几个高高的RM建筑物，主要是在低至中等地震危险的地点。加拿大高层建筑物的现场应用有限，可以部分归因于过去对该主题的实验研究的稀缺数据库。 拟议的项目将检查加拿大高的钢筋砌体（TRM）剪力墙的地震反应，并有机会将这些知识出口到其他国家。该提案包括一项强大的实验和分析研究计划，该计划将在不列颠哥伦比亚大学温哥华校园进行。 TRM剪切壁标本的地震反应以高纵横比的特征（在7.0到25.0范围内）将在材料，结构组件和结构系统水平上进行检查。将在系统级别进行杂交实验和数值模拟，以研究受到地震激发的TRM建筑物的地震反应。据信这是混合技术在全球范围内在TRM墙结构上的第一个应用。该项目中提出的实验计划将提供与TRM剪力墙的地震性能有关的急需的实验证据，这是开发人员，建筑师和工程师从事高层建筑的设计和建设所必需的。实验和分析研究产生的指南将为目前没有与高层砖石设计有关的足够培训的设计工程师提供所需的工具。