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基于位移的FRP加固混凝土框架抗震设计

, PP. 176-181

Keywords: 钢筋混凝土框架,基于性能的抗震设计,FRP,加固,目标侧向刚度

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Abstract:

以目标侧向刚度为控制指标,提出了FRP加固钢筋混凝土框架基于位移的抗震加固设计方法。该方法可以针对既有框架柱、梁构件进行准确的FRP抗震加固设计。给出了FRP加固钢筋混凝土构件屈服前、后两阶段的截面刚度计算公式,并对比了计算值与试验值,验证了公式的准确性。建立了屈服前、后两阶段的框架侧向刚度公式。利用目标侧向刚度与结构分析商业软件,可以进行FRP加固钢筋混凝土框架结构的静力弹塑性分析。算例表明,该算法是可行的。

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