Effect of masonry infill on analytical fragility response of RC frame school buildings in high seismic zone

IF 3 Q2 ENGINEERING, CIVIL
Muhammad Waleed Khan, M. Usman, S. Farooq, Muhammad Zain, S. Saleem
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引用次数: 7

Abstract

ABSTRACT This study aims at determining the effect of masonry as an infill on the vulnerability of reinforced concrete frame buildings by using fragility assessment. Refined linear and nonlinear structural models were developed, from data collected through professional surveys, using the PERFORM-3D platform. Nonlinear – static and dynamic – analyses were carried out, for fifteen ground motions, to examine the plastic behavior of the models. Subsequently, the vulnerability was assessed using fragility relationships. The fragility parameters were determined by employing the Maximum Likelihood Method (MLM). The results indicated a decrease in the probability of exceedance for specific damage states of the structures with respect to seismic intensity for masonry infill frames. From fragility curves, it is concluded that although the use of masonry as an infill temporarily enhances the capacity of Reinforced Concrete (RC) Frame buildings as the probability of exceedance for masonry infilled RC frames is significantly reduced due to the increase in the overall stiffness of the structure.
砌体填充对高震区钢筋混凝土框架学校建筑分析脆性响应的影响
摘要本研究旨在通过脆弱性评估来确定砌体作为填充物对钢筋混凝土框架建筑脆弱性的影响。根据专业调查收集的数据,使用PERFORM-3D平台开发了精细的线性和非线性结构模型。对15个地面运动进行了非线性静态和动态分析,以检查模型的塑性行为。随后,利用脆弱性关系对脆弱性进行了评估。脆性参数采用最大似然法(MLM)确定。结果表明,相对于砌体填充框架的地震强度,结构特定损伤状态的超越概率降低。从脆性曲线可以得出结论,尽管使用砌体作为填充物暂时提高了钢筋混凝土(RC)框架建筑的承载力,但由于结构整体刚度的增加,砌体填充RC框架的超越概率显著降低。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
3.90
自引率
9.50%
发文量
24
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