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State-of-the-Art in Monitoring of Critical Structural Details of Plate Girders during Shipment; Final rept
| 题名： | State-of-the-Art in Monitoring of Critical Structural Details of Plate Girders during Shipment; Final rept |
| 作者： | Vannoy, D. W. |
| 关键词： | Nondestructive tests; Highway bridges; Bridge inspection; Structural steels; Plate girders; Cracks; Cracking(Fracturing); Highway maintenance; Fatigue(Materials); Structural analysis; Strain gages; Plates(Structural members); Design criteria |
| 摘要： | After the completed construction and the steel bridge is opened to traffic, several states have reported that 'cracks' have been detected by bridge inspection teams during their routine inspection program. These cracks are being detected during the first inspection after opening of the bridge. The common concern at that time is if the cracks are traffic related, or are they due to the shipping/erection process. The use of a strain gage/crack wire applied at the fabrication shop would be a beneficial tool to the bridge engineer to monitor selected critical structural details during the shipping and erection process. In addition, acoustic emission could be utilized after erection to determine any active cracks within the steel structure. Also, any repaired cracks could be monitored to determine the effectiveness of the repair. |
| 总页数： | 37p |
| 报告类型： | 科技报告 |
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