论文部分内容阅读
采用ABAQUS对实腹式型钢混凝土异形柱框架在单调水平荷载作用下的受力性能进行有限元分析,获得了框架柱型钢的正应力分布和节点核心区型钢的剪应力分布,以及框架的整体和局部变形。与试验结果的对比表明,计算结果是可靠的。由分析可知,实腹式型钢混凝土异形柱框架承受水平荷载作用时,沿加载方向,边框架的角柱和中框架的边柱的截面内力分布不均匀,而边框架的边柱和中框架的中柱的截面内力分布较为均匀;边框架的角柱处于双偏压状态;节点核心区型钢腹板中心的剪应力最大,向四周逐渐减小;处于不同位置的相同类型节点的剪切变形不同。
ABAQUS finite element analysis of the behavior of the concrete-filled steel reinforced concrete special-shaped column frame subjected to monotonic horizontal load obtained the normal stress distribution of the frame column steel and the shear stress distribution of the core section steel, as well as the overall and Local deformation. The comparison with the experimental results shows that the calculation result is reliable. From the analysis, it can be seen that the cross-section internal forces of the corner column of the side frame and the side column of the middle frame are unevenly distributed along the loading direction when the concrete-filled steel reinforced concrete special-shaped column frame is subjected to the horizontal load, while the side columns of the side frame and the middle frame The distribution of internal force in the cross section of the column is more uniform. The corner columns of the frame are in double-biased state. The shear stress of the center of the section steel web in the core of the node is the largest, and decreases gradually to the surrounding. The shear deformation of the same type of nodes in different positions is different.