L形配筋钢管混凝土异形柱压弯性能

Bending Performance of L-shaped Columns Composed of Reinforcement CFST

应用ABAQUS通用有限元软件对配筋及不配钢筋钢管混凝土异形柱的轴心和偏心受压性能进行了非线性数值模拟,研究了其受力性能、变形能力和破坏形态,给出了其配筋及不配钢筋钢管混凝土异形柱数值模拟的荷载-位移曲线和变形形式;分析了配筋对钢管混凝土异形柱变形形式和承载力的影响。结果表明,钢管混凝土异形柱加配钢筋以后,提高了其极限能力,并且轴向受压时其变形形式发生变化。

Analysis of ABAQUS was carried out for the bending and axial compression performance of L-shaped columns composed of reinforcement CFST. The deformation capacity, ulti- mate load capacity and failure modes of L-shaped columns composed of reinforcement CFST were investigated under axial and bias compression. The load-displacement curves and deformation form from numerical simulation were obtained by analysis of ABAQUS. And the influence of reinforcement on the deformation and ultimate load capacity was analyzed as well. It is indicated that the columns failure modes of L-shaped columns composed of reinforcement CFST and L- shaped columns composed of CFST were different and their ultimate load capacities were improved by reinforcement.