| 带约束拉杆L形方钢管混凝土组合柱轴压性能 |
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| 引用本文： | 杨秀荣,姜谙男.带约束拉杆L形方钢管混凝土组合柱轴压性能[J].沈阳工业大学学报,2019,41(5):594-600. |
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| 作者姓名： | 杨秀荣 姜谙男 |
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| 作者单位： | 大连海事大学 道路与桥梁工程研究所, 辽宁 大连 116026 |
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| 基金项目： | 国家自然科学基金资助项目(51678101);中央高校基本科研业务费专项基金资助项目(3132014326) |
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| 摘 要： | 为了研究带约束拉杆L形方钢管混凝土组合长柱的轴压性能,采用有限元软件ANSYS数值模拟和试验对比方法分析了带约束拉杆L形组合长柱的轴压性能,通过分析带约束拉杆L形组合长柱整体构件的屈曲模态、变形图以及各个部件的应力云图,验证了构件具有较高的受压承载力.结果表明,在钢管内部添加约束拉杆增强了钢管对混凝土的约束效应,提高了混凝土的轴心抗压强度与构件的整体承载力,为构件的工程应用提供了依据.
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| 关 键 词： | 约束拉杆 组合柱 轴压性能 屈曲模态 有限元 非线性分析 约束效应 承载力 |
Axial compression properties of L-shaped concrete-filled square steel tubular composite columns with restraint bars |
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| YANG Xiu-rong,JIANG An-nan.Axial compression properties of L-shaped concrete-filled square steel tubular composite columns with restraint bars[J].Journal of Shenyang University of Technology,2019,41(5):594-600. |
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| Authors: | YANG Xiu-rong JIANG An-nan |
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| Affiliation: | Institute of Road and Bridge Engineering, Dalian Maritime University, Dalian 116026, China |
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| Abstract: | In order to study the axial compression properties of L-shaped concrete-filled square steel composite columns with restraint bars, the axial compression properties of L-shaped long composite columns with restraint bars were analyzed by a numerical simulation method using finite element software ANSYS and an experimental comparison method. Through analyzing buckling mode, deformation diagram and stress nephogram of each part in L-shaped long composite column, it is verified that the component has a higher compression-bearing capacity. The results show that the employment of restraint bars in steel tube can enhance the constraint effect of steel tube on concrete and improve the axial compression strength of concrete as well as the overall bearing capacity of components, providing a basis for subsequent application of components. |
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| Keywords: | restraint bar composite column axial compression property buckling mode finite element nonlinear analysis constraint effect bearing capacity |
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