Application Analysis of Cast Steel Tubular Joints in Super High-Rise Long-Span Steel Tubular Transmission Towers

HUANG Tao; LI Buhui; ZHU Jiao; Ning Shuaipeng; TAN Lei

doi:10.13204/j.gyjzG21113012

Volume 53 Issue 4

Apr. 2023

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HUANG Tao, LI Buhui, ZHU Jiao, Ning Shuaipeng, TAN Lei. Application Analysis of Cast Steel Tubular Joints in Super High-Rise Long-Span Steel Tubular Transmission Towers[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(4): 35-40. doi: 10.13204/j.gyjzG21113012

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Application Analysis of Cast Steel Tubular Joints in Super High-Rise Long-Span Steel Tubular Transmission Towers

doi: 10.13204/j.gyjzG21113012

1. State Grid Jiangsu Electric Power Company Construction Branch, Nanjing 210011, China;
2. China Energy Engineering Group, Jiangsu Power Design Institute Co., Ltd., Nanjing 211102, China

Received Date: 2021-11-30
Available Online: 2023-07-01

Abstract

Abstract

Based on the long-span transmission tower of 500 kV Fengcheng to Meili project, the selection of the joint of bottom-crossarm compression members was conducted. Three types of joints were put forward and compared, including tubular welding joint, welded hollow spherical joint and cast steel tubular joint. Monolithic casting technique was adopted in cast steel joints, it could solve the problem of space intersection of multiple members, and avoid complex welding process. Based on the comparison results, the cast steel joint was selected, and the steel material was G20Mn5QT. Then, the nonlinear finite element analysis was performed, the stress characteristics and ultimate bearing capacity of the cast steel joint were investigated, and the design bearing capacity of the joint under different load cases was calculated. The resules showed that the cast steel joint was safe and reliable, which could be wildly used in super high-rise transmission towers.
- super high-rise,
- steel tubular tower,
- cast steel tubular joint,
- joint type selection,
- application analysis

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References(17)

References

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