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首页> 外文期刊>Frontiers in Built Environment >Seismic Collapse Risk Assessment of Code-Conforming RC Moment Resisting Frame Buildings Designed With 2014 Canadian Standard Association Standard A23.3
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Seismic Collapse Risk Assessment of Code-Conforming RC Moment Resisting Frame Buildings Designed With 2014 Canadian Standard Association Standard A23.3

机译：根据2014年加拿大标准协会标准A23.3设计的符合规范的RC抗弯框架房屋的地震倒塌风险评估

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This paper presents collapse risk assessment of code-conforming reinforced concrete moment resisting frame (RC MRF) buildings located in Vancouver, Canada. This assessment investigates the three- and six-storey of regular RC MRF building systems, with and without unreinforced masonry infill wall, representing low- to mid-rise structures. These buildings are designed according to the current National Building Code of Canada and detailed based on the 2014 Canadian Standards Association A23.3 standard provision for high seismic regions. Two different ductility classes of seismic building design, namely ductile and moderately ductile, are considered to identify the capability, equality and/or difference of the seismic performance of these designed buildings. Nonlinear dynamic analysis is applied in the performance-based seismic assessment procedures to assess the collapse response of structural for the set of 50 pair ground motion records. Next, the seismic fragility curves are developed through incremental dynamic analysis. Finally, mean annual frequency of collapse is calculated through combination of fragility curve and hazard curve. The results indicate that the bare RC buildings are vulnerable to earthquake-induced collapse when the number of the story increased. The presence of the URM infill walls significantly influence the collapse behavior of the frame structure. Compared to moderately ductile MRF buildings, ductile MRF buildings show a better collapse performance, is strongly influenced by the capacity of the building system.
机译：本文介绍了位于加拿大温哥华的符合规范的钢筋混凝土抗弯框架（RC MRF）建筑物的倒塌风险评估。该评估调查了三层和六层的常规RC MRF建筑系统，有无钢筋砌体填充墙，分别代表中低层建筑。这些建筑物是根据加拿大现行的《国家建筑规范》设计的，并根据2014年加拿大标准协会针对高地震地区的A23.3标准进行了详细设计。考虑了地震建筑设计的两种不同的延性类别，即延性和中度延性，以识别这些设计建筑物的抗震性能的能力，相等性和/或差异性。在基于性能的地震评估程序中应用了非线性动力分析，以评估结构对50对地面运动记录的倒塌响应。接下来，通过增量动力分析得出地震脆性曲线。最后，结合脆性曲线和危险曲线计算出年平均倒塌频率。结果表明，随着楼层数量的增加，裸露的RC建筑物容易遭受地震引起的倒塌。 URM填充壁的存在会显着影响框架结构的倒塌行为。与中等延性的MRF建筑物相比，延性的MRF建筑物表现出更好的倒塌性能，并且受建筑系统容量的强烈影响。

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