国外某工程,外部网筒由圆柱斜向交叉与环梁编织而成,外网筒柱节点核心面积相比柱截面面积大幅减小,承载力不足,经有限元分析,汇交节点应力状态复杂,阴角区存在明显的应力集中,通过弹性、弹塑性有限元分析,找出了应力集中的原因,进而有针对性地提出了采用钢板凳进行加强的措施,取得了较好的效果。 A foreign project, the external network from the cylinder oblique cross and ring beam weaving, the core area of ​​the outer cylinder column node area compared to the column cross-sectional area was significantly reduced, the bearing capacity is not enough, by finite element analysis, the node junction complex state of stress , There is obvious stress concentration in the negative corner area. Through elastic and elasto-plastic finite element analysis, the reasons for the stress concentration are found out, and the measures to strengthen the steel bench are put forward in a targeted way, and good results are obtained.