Fatigue Performance of Single-Edged Cracked Steel Plates Repaired with Combined Stop-Hole and CFRP Plate

WANG Yanming; LIN Jingyu; WANG Haitao; SHI Jianzhe; GUO Congcong; CHEN Zhiji

doi:10.3724/j.gyjzG26031403

Volume 56 Issue 5

May 2026

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WANG Yanming, LIN Jingyu, WANG Haitao, SHI Jianzhe, GUO Congcong, CHEN Zhiji. Fatigue Performance of Single-Edged Cracked Steel Plates Repaired with Combined Stop-Hole and CFRP Plate[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(5): 130-140. doi: 10.3724/j.gyjzG26031403

Citation:

WANG Yanming, LIN Jingyu, WANG Haitao, SHI Jianzhe, GUO Congcong, CHEN Zhiji. Fatigue Performance of Single-Edged Cracked Steel Plates Repaired with Combined Stop-Hole and CFRP Plate[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(5): 130-140. doi: 10.3724/j.gyjzG26031403

Citation:

WANG Yanming, LIN Jingyu, WANG Haitao, SHI Jianzhe, GUO Congcong, CHEN Zhiji. Fatigue Performance of Single-Edged Cracked Steel Plates Repaired with Combined Stop-Hole and CFRP Plate[J]. INDUSTRIAL CONSTRUCTION, 2026, 56(5): 130-140. doi: 10.3724/j.gyjzG26031403

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Fatigue Performance of Single-Edged Cracked Steel Plates Repaired with Combined Stop-Hole and CFRP Plate

doi: 10.3724/j.gyjzG26031403

1. Jiangsu Expressway Engineering Maintenance Limited Company, Huai'an 223005, China;
2. College of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China

Received Date: 2026-03-14
Available Online: 2026-06-06
Publish Date: 2026-05-20

Abstract

Abstract

The stop-hole method is a commonly used technique for repairing fatigue cracks of steel structures in engineering practice； however， it suffers from issues such as unreliable repair effectiveness and damage to the cross-section. By combining externally bonded CFRP plates with the stop-hole to form a combined repair method， the limitations of a single method can be compensated for， achieving efficient repair of fatigue cracks. To investigate the enhancement effect of CFRP plates on stop-hole repair， a numerical analysis of the fatigue performance was conducted on single-edged cracked steel plates repaired with combined stop-hole and CFRP plate， based on the local stress-strain approach and fracture mechanics theory. A two-stage fatigue life assessment method for combined repaired steel plates was established and validated through comparisons with existing experimental studies. The results showed that， compared with the stop-hole repair， the combined repair method significantly reduced the stress around the hole edge and the stress intensity factor after crack re-initiation， thereby delaying crack propagation and significantly reducing the crack growth rate. Compared with CFRP plate repair， the combined repair method provided additional crack initiation life， demonstrating its high repair efficiency.
- stop-hole,
- CFRP plate,
- cracked steel plate,
- fatigue performance,
- numerical simulation

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References(30)

References

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