| 利用非线性分析预测CFRP加固管状钢梁的弯矩-曲率曲线 |
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| 摘 要： | 近年来,外部粘贴纤维聚合物加劲(FRP)经常应用于钢结构加固中。研究了中空圆形钢梁粘贴碳纤维布加固(CFRP)的非线性性能。考虑了CFRP数量、纤维构造、胶粘剂用量和材料非线性的影响。介绍了CFRP加固管状钢梁的截面弯矩-曲率曲线。利用数值分析结果,阐述了纤维的加固作用,并且数值分析结果与试验结果较好地吻合。
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| 关 键 词： | 碳纤维 管状钢梁 材料非线性 受弯 加固 |
Non-Linear Analysis to Predict the Moment-Curvature Response of CFRP-Strengthened Steel CHS Tubular Beams |
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| Abstract: | External bonding of fibre reinforced polymer (FRP) composites has emerged as a popular technique for strengthening steel structures in recent years. In this study, the non-linear behaviour of circular hollow steel beams bonded with thin carbon FRP sheets was investigated theoretically by including the effect of the amount of CFRP reinforcement, fibre configuration, fibre and adhesive volume fractions and material non-linearity. This paper presents a cross-sectional analysis for the moment–curvature response of CFRP-reinforced steel tubular beams. Numerical results are presented to illustrate the strengthening effect of fibre composites, and are shown to be in reasonable agreement with previous experimental data. |
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| Keywords: | CFRP Steel tubular beam Material non-linearity Bending Strengthening |
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