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HPFL加固多孔砖砌体抗震性能的试验研究

, PP. 73-80

Keywords: 高性能复合砂浆钢筋网,加固,拟静力试验,抗剪强度,多孔砖砌体

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Abstract:

为了解高性能水泥复合砂浆钢筋网薄层(HPFL)加固对多孔砖砌体抗震性能的加固效果及纵筋数量和加固方式因素的影响,制作了2个对比试件和10个加固试件进行拟静力试验。试验结果表明加固后试件的抗震抗剪承载力得到了显著提高,提高幅度达22.3%~49.4%;变形能力和耗能能力也得到明显的提高。圈梁构造柱条带加固对抗剪承载力的提高稍低于剪刀撑条带加固方式,但对延性和耗能能力的提高却更显著。条带纵筋数量的增加可以有效提高加固效果。根据试验结果和理论分析,拟合了HPFL加固多孔砖砌体抗震抗剪承载力的计算公式,可供工程加固设计时参考使用。

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