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在梁的有限元分析中,采用简化运动模型模拟翘曲扭转约束及其在框架节点中的传递。简要说明薄壁杆件的扭转性能,建立运动模型,模拟翘曲扭转在2个以上U型或I型杆件交汇的框架节点中的传递。为了说明本模型的应用及有效性,列出数值结果,并进行讨论。将梁元与壳元的有限元结果进行对比,验证了本模型可考虑节点的翘曲扭转性能。
In the finite element analysis of the beam, a simplified motion model is used to simulate the warping torsion constraint and its transfer in the frame node. A brief description of the torsional behavior of thin-walled members, the establishment of motion model to simulate the warp torsion in the intersection of more than two U-shaped or I-type member of the frame node transfer. To illustrate the application and effectiveness of this model, numerical results are presented and discussed. The finite element results of beam element and shell element are compared. It is verified that this model can consider the warpage and torsion of the joint.