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为了研究钢框架弹性变形与柱、梁变形之间的一般规律,以常见的钢框架结构中的柱、梁连接处十字形局部框架作为分析模型,以柱梁刚度比、楼层高跨比、梁柱截面高度比以及H型截面构件任一侧翼缘与腹板的截面积比等为主要研究参数,通过受力与变形分析,探讨了典型局部钢框架的力学机理。结果表明:局部框架变形中,柱变形与总变形比值,随柱梁刚度比和梁柱截面高度比的增大而减小;随着框架楼层高跨比的增大而增大;而梁变形与总变形比值,随柱梁刚度比和梁柱截面高度比的增大而增大;随着框架楼层高跨比的增大而减小;柱为H型截面时柱变形与总变形比值有增大的趋势。
In order to study the general law between the elastic deformation of the steel frame and the deformation of the column and the beam, the cruciform partial frame of the column and beam connection in the common steel frame structure is taken as the analysis model. The stiffness ratio of the column and the beam, Column height ratio and cross-sectional area ratio of flanges to webs on either side of H-section members are the main research parameters. The mechanical mechanism of typical local steel frame is discussed through the analysis of stress and deformation. The results show that the ratio of column deformation to total deformation decreases with the increase of the ratio of the column stiffness to the column-section height ratio, and increases with the increase of the span ratio of the frame. When the beam deformation And the total deformation ratio increases with the increase of the stiffness ratio of beam to column and the height ratio of beam to column, decreases with the increase of the span ratio of the frame. The ratio of column deformation to total deformation is Increasing trend.