【摘要】 为了改善单角钢的受压承载能力和滞回特性，提出一种装配式组装、工程应用便捷且加固效果显著的角钢防屈曲加固措施。基于加载试验和数值模拟，研究防屈曲加固措施的受压承载性能和滞回行为，评估防屈曲加固措施的加固效果。结果表明，有限元模型能够准确地模拟防屈曲加固措施的承载能力和变形模式；防屈曲加固措施能够显著提高单角钢的受压承载力，加固效果达20%以上；防屈曲加固措施有效改善了单角钢的滞回特性，受压承载力显著提高且刚度退化程度降低，进一步验证了防屈曲加固措施的有效性。更多还原

【Abstract】 In order to improve the compression bearing capacity and hysteretic characteristics of single angle steel,an anti-buckling reinforcement method for angle steel was proposed,which is assembled,convenient for engineering applications and has a significant reinforcement effect.Based on the loading test and numerical simulation,the compression bearing performance and hysteretic behavior of the anti-buckling reinforcement method were studied,and the reinforcement effect of the anti-buckling reinforcement method was evaluated.The results show that the finite element model can accurately simulate the bearing capacity and deformation mode of anti-buckling reinforcement method.The anti-buckling reinforcement method can significantly improve the compression bearing capacity of the single angle steel,and the reinforcement effect is more than 20%. The anti-buckling reinforcement measures effectively improve the hysteretic characteristics of single angle steel,significantly improve the compression bearing capacity and reduce the degree of stiffness degradation,which further verifies the effectiveness of the antibuckling reinforcement method.更多还原