維持・管理（耐候性鋼）

[I-392] Thickness Measurement of Corroded Weathering Steel by 3D Scanner

*川村 弘昌¹、鈴木 克弥¹、新村 稔² (1. 日本橋梁建設協会、2. セイコーウェーブ)

Keywords:Weathering Steel, 3D Scanner, Thickness Measurement, Corrosion amount

The front and back of corroded member in weathering steel bridge were simultaneously measured using 3D scanner. By combining the data by 3D CAD, we aimed to obtain accurate and three-dimensional measurement data. By this measurement, three-dimensional corrosion condition was able to be measured with high accuracy and speed by using 3D scanner. Moreover, by using the data, three-dimensional CAD data of residual plate thickness and corrosion distribution could be made. It was possible to create data of analysis to examine residual strength. It was possible to acquire data when examining the location and method of repair and reinforcement.