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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.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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