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针对750k V格构式变电构架K形节点进行了足尺试验及有限元仿真分析,考察了其在设计荷载和1.5倍设计荷载下的受力变形情况及极限承载力。结果表明,设计荷载下750k V格构式变电构架K形节点仍处于弹性工作状态;1.5倍设计荷载下,该节点仍然安全。
A full-scale test and finite element simulation analysis of a K-shaped node of a 750k V lattice transformer substation were carried out. The deformation and the ultimate bearing capacity of the K-shaped node of the 750k V grid substation under the design load and 1.5 times the design load were investigated. The results show that the K-shaped node of 750 kV lattice transformer substation under design load is still in elastic working condition and the node is still safe under 1.5 times of design load.