磁歪法による鋼橋の動的応力測定ならびに実橋鋼材感度校正方法に関する検討 : 溶接鋼構造物の全応力測定への磁歪法の適用性に関する実験的検討(第2報)

概要

論文の詳細を見る
On maintenance of structures, there is a strong need to know stress conditions of steel structure in use. Stress measuring technique using the magnetostriction effect utilizes magnetic field distortion by strain of steel itself. It has a possibility to measure stress already existed in structures beforehand, such as dead load stress or welding residual stress. We made an experimental study on dynamic stress measurement of steel bridges and calibration of magnetostriction sensitivity of the steel used for bridges. Following results were obtained. (1) By revised magnetostriction stress measuring equipment, dynamic stress fluctuations of steel bridges under real traffic were measured within the accuracy of 95%. (2) Calibration procedures of magnetostriction sensitivity of steel used for bridges were proposed.
社団法人溶接学会の論文
2004-08-05