@article{oai:iot.repo.nii.ac.jp:02000006,
 author = {末光 功治 and 岩野 聡史 and 相澤 雅俊 and 森濱 和正 and 澤本 武博 and 睦好 宏史},
 issue = {13},
 month = {Mar},
 note = {本研究では，高速道路橋の鉄筋コンクリート床版と同じ配筋，床版厚の試験体上面に，水平ひび割れ及び土砂
化を模擬した内部欠陥を作製し，床版試験体の下面側から衝撃弾性波法により測定し検証した．その結果，床
版試験体の内部欠陥の中心付近の異常値の検出率は高いが，内部欠陥の端部付近では検出率は低くなった．ま
た，水平ひび割れでは異常値が部材厚さよりも小さく測定されたが，土砂化では部材厚さより小さくなる異常値と，大きくなる異常値が混在した．, In this study, internal defects simulating horizontal crack and gravel layer in slab were create on the upper
surfaces of a test specimen with the same bar arrangement and slab thickness as the reinforced concrete slab
of an expressway bridge. It was verified by the impact elastic wave method from the bottom side of the test
specimen. Resulting in, the detection rate of abnormal values near the center of the internal defect of slab
specimen was high, but the detection rate was low near the edge of the internal defect. In addition, for
horizontal cracks, abnormal values were smaller than the member thickness, but for gravel layer in slab,
some abnormal values were smaller than the member thickness, while others are larger than the member
thickness., 本研究では，高速道路橋の床版と同じ配筋，床版厚の床版試験体の床版上面側に水平ひび割れ及び土砂化を模擬した内部欠陥を作製し，床版試験体の下面側から衝撃弾性波法により内部欠陥を検出できるか検証した．},
 pages = {31--38},
 title = {衝撃弾性波法によるコンクリート床版の内部劣化検出に関する研究},
 year = {2024}
}