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预应力CFRP布加固混凝土梁受剪分析

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摘要 为开展负载状态下预应力碳纤维布加固低强度混凝土梁斜截面受剪承载力性能的研究,依据配箍率不同设计制作3组共计12根钢筋混凝土梁,每组选择1根非加固钢筋混凝土梁作为对比梁,其余3根预加载至对比梁极限受剪承载力的40%,在持荷状态下利用预应力碳纤维布对试验梁弯剪区段进行加固。完成了12根试验梁单点加载受剪试验,获得了承载力、变形等试验数据。基于实测数据,利用ABAQUS有限元分析软件建立了预应力碳纤维布加固低强度混凝土负载梁的有限元分析模型,经过理论分析,建立了预应力碳纤维布加固低强度混凝土负载梁斜截面受剪承载力计算公式。
出处 《低温建筑技术》 2015年第1期90-93,共4页 Low Temperature Architecture Technology
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