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INTRODUCING FHWA'S NDE VALIDATION CENTER.
| 题名： | INTRODUCING FHWA'S NDE VALIDATION CENTER. |
| 作者： | Phares-BM; Washer-G; Moore-M |
| 关键词： | EVALUATION-; HIGHWAY-BRIDGES; INFRASTRUCTURE-; INSPECTION-; NONDESTRUCTIVE-TESTS; TECHNOLOGY-ASSESSMENT; TEST-PROCEDURES; U.S.-FEDERAL-HIGHWAY-ADMINISTRATION; VALIDATION- |
| 摘要： | The National Bridge Inspection Program (NBIP) requires the states to periodically inventory and inspect all highway structures on public roads, including those not on the federal system. Since the initiation of NBIP, the Federal Highway Administration (FHWA) and other organizations have invested much time, effort, and money toward the development and advancement of nondestructive evaluation (NDE) techniques and technologies. A number of NDE technologies, such as infrared thermographic imaging, ground-penetrating radar imaging, laser-radar scanning, acoustic emission monitors, electromagnetic acoustic transducers, embedded corrosion microsensors, and laser vibrometers, are being tested and used to effectively and efficiently collect quantitative data about bridge conditions. However, many bridge inspectors do not have a clear understanding of the factors that affect the reliability and performance of these methods. It is clear that before NDE systems can be used with confidence, all factors affecting the reliability must be identified, and the systems must be validated considering these factors. To accomplish this, FHWA established an NDE Validation Center (NDEVC). This center, which was initiated by congressional funding in 1996, is the only center in the world dedicated entirely to the evaluation and validation of NDE technologies for highway infrastructure. The center will allow FHWA to determine the reliability of visual inspections, verify the usefulness and reliability of new inspection methods and devices, and teach others the value of NDE technologies. The resources of NDEVC are available to federal and state agencies, the academic community, and industry. |
| 总页数： | Public Roads. 1999/01. 62(4) pp18-20 (8 Phot.) |
| 报告类型： | 科技报告 |
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