| 平面K型钢管相贯节点极限承载力有限元分析 |
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| 引用本文： | 朱庆科,舒宣武. 平面K型钢管相贯节点极限承载力有限元分析[J]. 华南理工大学学报(自然科学版), 2002, 30(12): 62-66 |
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| 作者姓名： | 朱庆科 舒宣武 |
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| 作者单位： | 1. 华南理工大学,建工系,广东,广州,510640
2. 华南理工大学,设计院,广东,广州,510640 |
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| 摘 要： | 应用有限元法，考虑材料非线性和几何非线性，分析了平面K型圆管相贯节点的应力和塑性区分布规律、节点变形等重要受力性能，揭示了影响管节点承载力主要能数以及这些参数与承载力的关系曲线；将有限元计算结果与实验数据和我国规范进行比较，指出了现有规范的不足之处，为我国规范的进一步修订提出了建议。并且进一步验证了用有限元模拟试验的可能性。
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| 关 键 词： | 平面K型圆管相贯节点 非线性有限元 极限承载力 钢管结构 力学性能 破坏模式 |
| 文章编号： | 1000-565X(2002)12-0062-05 |
Ultimate Strength Analysis of Plane Circular Tubular K-Joints by Finite Element Method |
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| Zhu Qing_ke Shu Xuan_wu. Ultimate Strength Analysis of Plane Circular Tubular K-Joints by Finite Element Method[J]. Journal of South China University of Technology(Natural Science Edition), 2002, 30(12): 62-66 |
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| Authors: | Zhu Qing_ke Shu Xuan_wu |
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| Affiliation: | Zhu Qing_ke 1 Shu Xuan_wu 2 |
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| Abstract: | In this paper, the ultimate strength of plane circular tubular K_joints is investigated numerically by using the finite element method and close reference to material and geometrical nonlinear properties. The distribution of stress, plastic_zones and the joint deformations are analyzed. The influence of geometric parameters on the ultimate strength is investigated and explained graphically. By comparison of the FEM computational results with those of the current PRC codes, the deficiency between them is found out and some useful suggestions for modifications of the current PRC codes are presented. Furthermore the possibility of using the finite element method in simulating experiment is proven. |
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| Keywords: | plane circular tubular K_joints nonlinear finite_element ultimate strength |
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