Rehabilitation of Strengthening of Orthotropic Steel Bridge Decks

Miki, Chitoshi; Suganuma, Hisatada

doi:10.1201/b16467-18

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…In recent years, numerous through‐deck cracks have been observed in the orthotropic steel decks of urban highways. An on‐site semi‐automatic UT (SAUT) system has been developed for the Metropolitan Expressway in Tokyo to detect through‐deck fatigue cracks . Furthermore, the efficiency and applicability of the SAUT system have been improved by employing a magnet attracting robotic crawler.…”

Section: Review Of Ndt Techniques Employed For Detecting Fatigue Cracmentioning

confidence: 99%

Remote nondestructive evaluation technique using infrared thermography for fatigue cracks in steel bridges

Sakagami

2015

Fatigue Fract Eng Mat Struct

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Long‐standing infrastructure is subject to structural deterioration. In this respect, steel bridges suffer fatigue cracks, which necessitate immediate inspection, structural integrity evaluation or repair. However, the inaccessibility of such structures makes inspection time consuming and labour intensive. Therefore, there is an urgent need for developing high‐performance nondestructive evaluation (NDE) methods to assist in effective maintenance of such structures. Recently, use of infrared cameras in nondestructive testing has been attracting increasing interest, as they provide highly efficient remote and wide area measurements. This paper first reviews the current situation of nondestructive inspection techniques used for fatigue crack detection in steel bridges, and then presents remote NDE techniques using infrared thermography developed by the author for fatigue crack detection and structural integrity assessments. Furthermore, results of applying fatigue crack evaluation to a steel bridge using the newly developed NDE techniques are presented.

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Section: Review Of Ndt Techniques Employed For Detecting Fatigue Cracmentioning

confidence: 99%