METHOD FOR DETECTING CRACK OF BRIDGE FLOOR PANEL
PROBLEM TO BE SOLVED: To provide a method for detecting a crack of a bridge floor panel for covering all bridge floor panels used in a bridge, and detecting the crack of a metal member of the bridge floor panel with a little effort at a low cost while making the influence light on the traffic. SOLUT...
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| creator | HAYASHI YASUSHI UCHIMA MITSUAKI TAKEDA YUJI SAKAI YASUTO SHIRAISHI AKIRA SHIMAMURA HIDEKI KANUE NAOHIRO YAMAGAMI TETSUJI KONO YUZURU KUROSU HIDEAKI TABATA AKIKO HAYASHIDA MITSUHIRO TSUKAMOTO NARIAKI |
| description | PROBLEM TO BE SOLVED: To provide a method for detecting a crack of a bridge floor panel for covering all bridge floor panels used in a bridge, and detecting the crack of a metal member of the bridge floor panel with a little effort at a low cost while making the influence light on the traffic. SOLUTION: The method includes: photographing an infrared thermal image of the surface of a pavement 3 of a steel floor panel 1 (step S1); specifying a flaw detection candidate position in a deck plate 2 by using the infrared thermal image (step S2); specifying a damage position of the deck plate 2 from the upper surface side of the pavement 3 by using an eddy current flaw detector at the specified flaw detection candidate position (step S3); and detecting a position and a size of the crack 7A of the deck plate 2 from the lower surface side of the pavement 3 by using a phased array flaw detector at the specified damage position, after above step (step S4). COPYRIGHT: (C)2010,JPO&INPIT |
| format | Patent |
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SOLUTION: The method includes: photographing an infrared thermal image of the surface of a pavement 3 of a steel floor panel 1 (step S1); specifying a flaw detection candidate position in a deck plate 2 by using the infrared thermal image (step S2); specifying a damage position of the deck plate 2 from the upper surface side of the pavement 3 by using an eddy current flaw detector at the specified flaw detection candidate position (step S3); and detecting a position and a size of the crack 7A of the deck plate 2 from the lower surface side of the pavement 3 by using a phased array flaw detector at the specified damage position, after above step (step S4). 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SOLUTION: The method includes: photographing an infrared thermal image of the surface of a pavement 3 of a steel floor panel 1 (step S1); specifying a flaw detection candidate position in a deck plate 2 by using the infrared thermal image (step S2); specifying a damage position of the deck plate 2 from the upper surface side of the pavement 3 by using an eddy current flaw detector at the specified flaw detection candidate position (step S3); and detecting a position and a size of the crack 7A of the deck plate 2 from the lower surface side of the pavement 3 by using a phased array flaw detector at the specified damage position, after above step (step S4). 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SOLUTION: The method includes: photographing an infrared thermal image of the surface of a pavement 3 of a steel floor panel 1 (step S1); specifying a flaw detection candidate position in a deck plate 2 by using the infrared thermal image (step S2); specifying a damage position of the deck plate 2 from the upper surface side of the pavement 3 by using an eddy current flaw detector at the specified flaw detection candidate position (step S3); and detecting a position and a size of the crack 7A of the deck plate 2 from the lower surface side of the pavement 3 by using a phased array flaw detector at the specified damage position, after above step (step S4). COPYRIGHT: (C)2010,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ASSEMBLY OF BRIDGES COLORIMETRY CONSTRUCTION OF BRIDGES CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES FIXED CONSTRUCTIONS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING OR VIADUCTS PHYSICS RADIATION PYROMETRY TESTING |
| title | METHOD FOR DETECTING CRACK OF BRIDGE FLOOR PANEL |
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