3D SIMULATION OF END-PLATE BOLTED CONNECTIONS
3D SIMULATION OF END-PLATE BOLTED CONNECTIONS
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DOI：
10.1061/(asce)0733-9445(1994)120:11(3122
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发表时间：
1994-11-01
期刊：
影响因子：
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通讯作者：
BAHAARI, MR
中科院分区：
文献类型：
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作者：
SHERBOURNE, AN;BAHAARI, MR
提出了一种基于有限元模型的分析计算钢螺栓端板节点弯矩-转角关系的方法。选用大型通用有限元程序Ansys4.4进行等效三维有限元分析。端板、梁翼缘和柱翼缘、腹板和柱加劲肋被表示为板单元。每个螺栓柄都使用六个SPAR单元进行建模。三维界面单元用于模拟立柱翼缘与端板背面之间可能进行接触或断开接触的边界。除了节点的整体性能外，还分析了螺栓、端板和柱翼缘的柔性对节点性能的影响。用图形显示了撬动力的分布和变化。对扩展端板连接的方法进行了演示，并将结果与实验数据进行了比较，以验证建模和相关计算机分析的可行性。
A methodology based on finite-element modeling is developed to analytically evaluate the moment-rotation relationships for steel bolted end-plate connections. ANSYS, version 4.4, a large-scale general-purpose finite-element code is selected for equivalent three dimensional (3D) analysis. The end plate, beam and column flanges, webs, and column stiffeners are represented as plate elements. Each bolt shank is modeled using six spar elements. Three-dimensional interface elements are used to model the boundary between column flange and back of the end plate that may make or break contact. Besides the overall behavior of the connection, the contribution of bolts, end-plate and column flange flexibility to the behavior is singled out. The distribution and variation of prying forces is shown graphically. The methodology is demonstrated for an extended end-plate connection, and the results are compared against experimental data to verify the feasibility of the modeling and associated computer analyses.