钢管输电塔环形加肋节点承载力分析

Analysis on strength of tube-gusset joints in steel tubular tower with annular ribbed plate

通过试验对1/4和1/2环形加肋钢管插板连接节点基于钢管控制的极限承载力进行了研究。在此基础上,根据能量理论和虚功原理,提出了适用于估算此类节点极限承载力的分析模型,用数值分析方法得出了节点极限承载力,并与试验结果、有限元和AIJ计算结果进行了比较,证明该理论分析模型的适用性较好。

Experimental study was performed to investigate the behavior and strength of tube-gusset joints with 1/4 and 1/2 annular ribbed plate.Based on energy theory and virtual work principle,analysis model for calculating the ultimate bearing capacity of tube-gusset joints was put forward,ultimate bearing capacity of tube-gusset joints was obtained through numerical method.Compared the strength of joint which obtained according to above model with the results of experiment,FEM and AIJ,it is proved that the calculation method model has the theoretical and practical significance for design.