Yamada, T. Primary Author mixed material bibliography Taylor & Francis 2012 id Indonesia

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In recent years, fatigue cracks in an orthotropic steel deck have been reported with increase in traffic. These damages may cause danger to the traffic on the bridges. Therefore, detection of the cracks in early stage is highly required. In order to scan a crack in the orthotropic steel deck from pavement surface without removing its asphalt layer, we adopt an eddy current testing technique. This technique is based on the principle of electromagnetic induction and suitable for this application, because the deck plate is a conductor and simple in shape. When the technique is applied through the asphalt layer of 100mm thick, the minimum surface-breaking crack that can be detected is 100mm long. The effectiveness of the inspection technique is confirmed by experimental and field test results. In addition, we develop a scanning system aiming at more efficient inspection. BRIDGE DECKS 624.21(063) Perpustakaan Direktorat Bina Teknik Jalan dan Jembatan Direktorat Jenderal Bina Marga - Kementerian Pekerjaan Umum (NPP: 3273244A00000001) 0000020757 My Library 20034 machine generated