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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。
In recent years, externally bonded fiber polymer reinforcement (FRP) is often used in steel reinforcement. The nonlinear performance of hollow circular steel beam bonded with carbon fiber reinforced plastic (CFRP) was studied. The effects of the amount of CFRP, the fiber construction, the amount of adhesive, and the material nonlinearities are taken into account. The moment-curvature curves of CFRP reinforced tubular steel beams are introduced. Using the numerical analysis results, the reinforcement effect of the fiber is expounded, and the numerical analysis results are in good agreement with the experimental results.