CAJ | 학술논문

近年来，受损钢构件的修复、加固获得了越来越多的应用。而受损构件的承载能力评定作为修复加固工作的重要依据，在现阶段缺少定量的深入分析。选取有凹陷的钢管和有凸起的角钢，采用规范公式、数值分析、试验验证三种方法，对比分析了局部残余变形对轴压钢构件承载能力的影响，发现在一定条件下局部残余变形使钢构件的轴压承载力增大，在评定其承载力时可根据局部变形大小来判定承载力是否会下降。
근년래，수손강구건적수복、가고획득료월래월다적응용。이수손구건적승재능력평정작위수복가고공작적중요의거，재현계단결소정량적심입분석。선취유요함적강관화유철기적각강，채용규범공식、수치분석、시험험증삼충방법，대비분석료국부잔여변형대축압강구건승재능력적영향，발현재일정조건하국부잔여변형사강구건적축압승재력증대，재평정기승재력시가근거국부변형대소래판정승재력시부회하강。
Recently,repair and reinforcement of damaged steel members become more and more popular.As an important basis for repairing design,the load-carrying capacity assessment of damaged members lacks quan-titative analysis at this stage.In this paper,a steel pipe with compression and a steel angle member with pro-trusion were employed to analyze the influence of local residual deformation on the axial load-bearing capacity of steel members by using design formula,numerical analysis,and experiments,respectively.The results show that in certain cases local residual deformation improves the axial load-bearing capacity of steel members. The possibility of the load-bearing capacity decreases can be judged by the amount of local deformation.