| 圆钢管混凝土柱在轴压下的局部屈曲 |
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| 引用本文： | 魏丽婷,赵永刚,梁钦华,李华.圆钢管混凝土柱在轴压下的局部屈曲[J].甘肃科学学报,2010,22(3):126-129. |
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| 作者姓名： | 魏丽婷 赵永刚 梁钦华 李华 |
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| 作者单位： | 兰州理工大学,理学院工程力学系,甘肃,兰州,730050 |
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| 摘 要： | 假设核心混凝土刚性很大,通过压杆和圆柱壳2种模型,假定了位移函数的三角函数形式,用能量法求解圆钢管混凝土柱在轴压下局部屈曲的临界载荷和临界应力,2种方法得到的计算结果相同.结果表明,核心混凝土的存在大大提高了钢管管壁抵抗局部屈曲的能力.
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| 关 键 词： | 钢管混凝土 局部屈曲 能量法 |
Local Buckling of Concrete-Filled Circular Steel Tubular Column Subjected to Axial Compression |
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| WEI Li-ting,ZHAO Yong-gang,LIANG Qin-hua,LI Hua.Local Buckling of Concrete-Filled Circular Steel Tubular Column Subjected to Axial Compression[J].Journal of Gansu Sciences,2010,22(3):126-129. |
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| Authors: | WEI Li-ting ZHAO Yong-gang LIANG Qin-hua LI Hua |
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| Institution: | (Department of Engineering Mechanics,School of Sciences,Lanzhou University ofScience and Technology,Lanzhou 730050,China) |
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| Abstract: | It is assumed that the rigidity of core concrete is great.Based on two kinds of models——the strut and the cylindrical shell respectively,when the displacement function is given in the form of trigonometric function,the local buckling critical load and stress of the concrete-filled circular steel tubular column subjected to axial compression are solved by using the energy approach.The two calculating methods have got the same result.It is shown by the result that the ability of steel plate to resist local buckling is improved remarkably due to the existence of core concrete. |
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| Keywords: | concrete-filled steel tubular column local buckling energy approach |
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