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Inspection and Management of Bridges with Fracture: Critical Details. A Synthesis of Highway Practice.
| 题名： | Inspection and Management of Bridges with Fracture: Critical Details. A Synthesis of Highway Practice. |
| 作者： | CONNOR, R. J.; DEXTER, R.; MAHMOUD, H. |
| 关键词： | *Bridges-Structures; *Bridge-inspection; *Fracture-critical-members.;Procedures-; Fatigue-life; Costs-; Fabrication-; Surveys-; Training-; Qualifications-; Retrofitting-. |
| 摘要： | This synthesis may be useful to bridge owners and consulting engineers engaged in the design, inspection, and management of bridges with fracture-critical details, as a guide to present specifications and engineering judgment. It focuses on the inspection and maintenance of bridges with fracture-critical members (FCMs), as defined in the AASHTO LRFD Bridge Design Specifications. The objectives of this report were to survey and identify gaps in the literature; determine practices and problems with how bridge owners define, identify, document, inspect, and manage bridges with fracture-critical details; and identify specific research needs. Among the areas examined were: inspection frequencies and procedures; methods for calculating remaining fatigue life; qualification, availability, and training of inspectors; cost of inspection programs; instances where inspection programs prevented failures; retrofit techniques; fabrication methods and inspections; and experience with FCM fractures and problems details. This synthesis report of the Transportation Research Board contains information obtained from a survey distributed to bridge owners and consultant inspectors (72 state, provincial, and international departments of transportation and agencies), a literature search, and targeted interviews. Useful responses were received from 34 states and three Canadian provinces. |
| 报告类型： | 科技报告 |
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