Service State Inspection and Failure Mode Analysis of Old Welded Towers

DING Zushan; HUO Fuguang; GAO Shengda; LU Limin; QU Luyang

doi:10.13204/j.gyjzG22102605

Volume 53 Issue 1

Jan. 2023

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DING Zushan, HUO Fuguang, GAO Shengda, LU Limin, QU Luyang. Service State Inspection and Failure Mode Analysis of Old Welded Towers[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(1): 233-239. doi: 10.13204/j.gyjzG22102605

Citation:

DING Zushan, HUO Fuguang, GAO Shengda, LU Limin, QU Luyang. Service State Inspection and Failure Mode Analysis of Old Welded Towers[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(1): 233-239. doi: 10.13204/j.gyjzG22102605

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Service State Inspection and Failure Mode Analysis of Old Welded Towers

doi: 10.13204/j.gyjzG22102605

1. Xuzhou Power Supply Company of State Grid Jiangsu Power Co., Ltd., Xuzhou 221000, China;
2. School of Mechanics and Civil Engineering, China University of Mining and Technology, Xuzhou 221116, China

Received Date: 2022-10-26
Available Online: 2023-05-25
Publish Date: 2023-01-20

Abstract

Abstract

Taking the typical ZT-type old welded tower as an example, based on the uncertainty in service and potential safety risk caused by the missing design data, changes in design specifications and damages in service, a inspection method in service was proposed. The influence of the change of constraint conditions and different corrosion ratios in steels on the failure mode of ZT-type old welded towers was discussed. The results showed that according to the new design code, the rods of main members did not meet the requiments under a gale, in the 90° direction and the uneven icing. The post-constructed concrete platform changed the stress of the tower, the failure zone developed from the lower part of the tower towards the middle. Due to the changes of constraint conditions and deficiency of rods, the main members in segment No.2 and No.4 of the tower would fail under a gale of 18 m/s in the 90° direction.
- old welded tower,
- service status,
- corrosion,
- protective platform,
- failure mode

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References(17)

References

[1]	钟乐鸣,高飞,江文强,等.基于宏观损伤的锈蚀角钢蚀余承载力评估方法[J].电力科学与工程, 2022, 38(4):71-78.
[2]	高超,刘建军,郑逸川,等.锈蚀对输电塔角钢力学性能的影响[J].腐蚀与防护, 2020, 41(8):32-38.
[3]	张春涛,范文亮,李正良. Q345等边角钢腐蚀疲劳性能试验研究[J].振动与冲击, 2014(2):193-198.
[4]	BEAULIEU L V, LEGERON F, LANGLOIS S. Compression strength of corroded steel angle members[J]. Journal of Constructional Steel Research,2010,66(11):1366-1373.
[5]	OSZVALD K, DUNAI L. Effect of corrosion on the buckling of steel angle members:experimental study[J]. Periodica Polytechnica Civil Engineering, 2010, 56(2):175-183.
[6]	刘梓源.锈蚀角钢单边连接偏心压杆承载力研究[D].徐州:中国矿业大学, 2016.
[7]	SHU Q J, WANG K J, YUAN G L,et al. Assessing capacity of corroded angle members in steel structures based on experiment and simulation[J].Construction and Building Materials,2020,244:1-15.
[8]	夏开全,李峰,张子富,等.输电铁塔锈蚀构件的力学性能试验研究[C]//中国电机工程学会第九届青年学术会议论文集.北京:2006.
[9]	中华人民共和国住房和城乡建设部. 110 kV~750 kV架空输电线路设计规范:GB 50545-2010[S].北京:中国计划出版社,2010.
[10]	国家能源局.架空输电线路杆塔结构设计技术规定:DL/T 5154-2012[S].北京:中国计划出版社,2012.
[11]	国家能源局.架空输电线路荷载规范:DL/T 5551-2018[S].北京:中国计划出版社,2018.
[12]	张志坚. 110kV线路ZS及ZGu2典型老旧杆塔结构诊治及补强技术研究[D].南京:东南大学, 2020.
[13]	雷勇.老旧输电杆塔结构安全性分析[D].南京:东南大学,2019.
[14]	熊国文.高压角钢输电塔抗风稳定性分析及其加固研究[D].广州:广州大学, 2018.
[15]	王玲,杨建平,郭小华.采用里氏硬度无损检测法判别钢结构钢材牌号试验研究[J].工业建筑,2022,52(12):195-199 ,194.
[16]	中华人民共和国水利电力部.架空送电线路设计技术规程;SDJ 3-1979[S].北京;中国计划出版社,1979.
[17]	黄士君.输电铁塔受腐蚀节点蚀余力学性能的有限元分析[J].常州大学学报(自然科学版),2015,27(3):35-38.