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
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
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.
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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
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