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Seismic vulnerability of masonry infilled reinforced concrete frame structures

机译：砌体填充钢筋混凝土框架结构的地震易损性

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Despite intense worldwide research in the area of masonry infilled frame structures during the past half a century, displacement-based non-linear analyses of masonry infilled frames with explicit consideration of infill panels as structural elements is far from common practice in earthquake resistant design of such structures. The displacements are of particular interest from the viewpoint of performance-based design (PBD), the emerging paradigm for the next generation of standard codes of practice for earthquake resistant design. The present paper is based on an analytical study of the seismic performance and vulnerability of typical planar masonry infilled reinforced concrete (R/C) frames considering the effect of distribution of masonry infill panels over the elevation of the R/C frame using rational displacement based analysis methods such as non-linear dynamic time-history analysis based on realistic and efficient hysteretic models of the structural elements. The results of the displacement-based analyses are used to develop seismic vulnerability curves in probabilistic terms for the populations of typical medium-rise masonry infilled reinforced concrete (R/C) framed buildings. The proposed seismic vulnerability curves are termed as fragility curves in the present study that provide useful tools for predicting life and economic losses in the event of a future earthquake.
机译：尽管在过去半个世纪中在砌体填充框架结构领域进行了广泛的研究，但基于位移的非线性分析对砌体填充框架进行了明确考虑，将填充面板作为结构要素，这远非这种抗震设计的常规做法。结构。从基于性能的设计（PBD）的角度来看，位移是特别有趣的，基于性能的设计（PBD）是下一代抗震设计标准操作规范的新兴范例。本文基于对典型平面砖石填充钢筋混凝土（R / C）框架的抗震性能和脆弱性的分析研究，并考虑了基于合理位移的砖石填充面板在R / C框架高度上的分布影响分析方法，例如基于真实有效的结构要素滞后模型的非线性动态时程分析。基于位移的分析结果可用于概率性地绘制典型的中层砌体填充钢筋混凝土（R / C）框架建筑群的地震易损性曲线。拟议的地震易损性曲线在本研究中称为易碎性曲线，为预测未来地震时的生命和经济损失提供有用的工具。

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