【作者】 王晓栋； 王先铁； 侯新宇；

【Author】 WANG Xiaodong;WANG Xiantie;HOU Xinyu;School of Civil Engineering, Xi’an University of Architecture and Technology;

【机构】 西安建筑科技大学土木工程学院；

【摘要】 为研究内配钢骨圆钢管混凝土构件的受拉性能,采用有限元ABAQUS对其进行了数值模拟分析,研究了钢管径厚比、环肋间距、纵肋数量、偏心距等参数对内配钢骨圆钢管混凝土构件受拉性能的影响。结果表明:内配钢骨与钢管能有效地共同参与受拉作用,构件达到受拉极限承载力时钢骨可以达到受拉屈服。构件受拉承载力随着径厚比和偏心距的增大而减小;加劲纵肋能有效地提高构件的受拉承载能力;环肋间距对构件的受拉承载力影响很小。更多还原

【Abstract】 In order to study the tensile performance of concrete-filled steel tube(CFST) with angles, the finite element software ABAQUS was used to carry out the numerical simulation analysis. The effects of the diameter thickness ratio of steel tube, the space between ring ribs, the number of longitudinal ribs and the eccentricity on the tensile properties of CFST members with angles are studied. The results show that the internal angles and steel tube can effectively participate in the tensile action, and internal angles can reach the tensile yield when the specimen reaches the ultimate bearing capacity. The tensile capacity decreases with the increase of the diameter thickness ratio and eccentricity. The longitudinal rib is conducive to the improvement of the member’s bearing capacity; the ring rib spacing has little effect on the tensile bearing capacity.更多还原