STUDY ON EFFECTS OF STIFFENING RINGS ON BEARING CAPACITY AND FAILURE MODES OF LARGE-DIAMETER STEEL TUBE JOINTS

ZHANG Lijuan; LI Suchao; HE Xiwei; LIU Zhengwei; WANG Zhiyuan

doi:10.13204/j.gyjzG20032501

Volume 51 Issue 3

Jul. 2021

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2021 > 51(3): 104-109

ZHANG Lijuan, LI Suchao, HE Xiwei, LIU Zhengwei, WANG Zhiyuan. STUDY ON EFFECTS OF STIFFENING RINGS ON BEARING CAPACITY AND FAILURE MODES OF LARGE-DIAMETER STEEL TUBE JOINTS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(3): 104-109. doi: 10.13204/j.gyjzG20032501

Citation:

ZHANG Lijuan, LI Suchao, HE Xiwei, LIU Zhengwei, WANG Zhiyuan. STUDY ON EFFECTS OF STIFFENING RINGS ON BEARING CAPACITY AND FAILURE MODES OF LARGE-DIAMETER STEEL TUBE JOINTS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(3): 104-109. doi: 10.13204/j.gyjzG20032501

Citation:

ZHANG Lijuan, LI Suchao, HE Xiwei, LIU Zhengwei, WANG Zhiyuan. STUDY ON EFFECTS OF STIFFENING RINGS ON BEARING CAPACITY AND FAILURE MODES OF LARGE-DIAMETER STEEL TUBE JOINTS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(3): 104-109. doi: 10.13204/j.gyjzG20032501

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STUDY ON EFFECTS OF STIFFENING RINGS ON BEARING CAPACITY AND FAILURE MODES OF LARGE-DIAMETER STEEL TUBE JOINTS

doi: 10.13204/j.gyjzG20032501

1. Shandong Electric Power Engineering Consulting Institute Corp., Ltd., Jinan 250100, China;
2. School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China;
3. Department of Civil Engineering, Harbin Institute of Technology at Weihai, Weihai 264209, China

Received Date: 2020-10-20
Available Online: 2021-07-17

Abstract

Abstract

Based on a scaled model test, the bearing capacity of the joint at the intersection of the tower and cross arm with or without stiffening rings was studied. Combined with finite element analysis (FEA), the contributions of stiffening rings was to joint bearing capacity were analyzed, at the same time, the corresponding mechanisms, effects and failure modes also were analyzed. The results showed that the stiffening rings could increase the compression yield bearing capacity (side pipe) of joints more than 30%, and it could also improve the stress distribution in the tubular walls of main tubes and joint plates. In addition, the FEA results agreed well with the test results, not only on the bearing capacity but also the failure mode, which was helpful for the design and optimization of steel tube transmission towers.
- ultra-high voltage transmission tower of steel tubes,
- stiffening ring,
- joint connecting tower and cross arm,
- bearing capacity,
- experiment,
- FE simulation

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References(10)

References

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