Periodic Nondestructive Evaluation of In-Service Metal Bridges

摘要

Metal bridges are subject to in-service fracture problems mainly caused by fatigue. The report considers the prevention of bridge failure by the performance of periodic nondestructive evaluations. Differences in visual and other nondestructive inspections are discussed. The use of preliminary inspection strategies for proper testing also is presented. The suitability of common types of nondestructive testing for bridge inspections also are included.