Study on distributed strain measurement and crack detection in RC beam specimen using optical fiber sensor
光ファイバセンサを用いたRC梁試験体のひずみ分布計測およびひび割れ検知に関する基礎的研究

Shogo Morichika, Hidehiko Sekiya, Norihiko Kurihara, Ikumasa Yoshida, Kiyotaka Nakashima, Hideaki Iwaki
2022 Kozo Kogaku Ronbunshu. A (Journal of Structural Engineering. A)  
† 博(工) ,東京都市大学准教授,建築都市デザイン学部都市工学科(同上) **工博,東京都市大学准教授,建築都市デザイン学部都市工学科(同上) ***工博,東京都市大学教授,建築都市デザイン学部都市工学科(同上) ****清水建設株式会社,土木総本部土木技術本部橋梁統括部 (〒104-8370 東京都中央区京橋 2-16-1) *****清水建設株式会社,技術研究所(〒135-8530 東京都江東区越中島 3-4-17) Cracks are one of the important inspection items to keep concrete structures safe. In recent years, a method using an optical fiber sensor has been proposed as a method for efficiently measuring distributed strain over a wide area, and this method is suitable for large-scale concrete
more » ... tructures. Therefore, this study investigated the characteristic of the distributed strain for RC beam specimen using three types of measurement methods and two types of optical fiber sensor. Finally, we compared the strain measurement results and determined the cracks from strain measurement results.
doi:10.11532/structcivil.68a.628 fatcat:tevacfxrzzbshalnj4io7kmqza