[V-649] Quantitative Study on Visual Measurement Error of Crack Width in Close Visual Inspection of Concrete Structures

〇Junpei Saito¹, Hibiki Shiokawa¹ (1.Nihon University)

[V-650] Basic study on surface quality tendency of concrete specimen by surface water absorption test

〇Takumi Osabe¹, Kou Ibayashi² (1.Nagaoka Institute of Technology Advanced course, 2.Nagaoka Institute of Technology)

[V-651] Fundamental study for crack width measurement during tensile fatigue test by using video

〇Yasutaka Noma¹, Sumiyuki Sawada¹, Takahiro Funatsu¹, Tsuyoshi Nishimura¹, Yuko Sato², Ken Watanabe², Munemasa Tokunaga² (1.HAZAMA ANDO CORPORATION, 2.Railway Technical Research Institute)

[V-652] Fundamental study for measurement of crack width on surface of RC girders during passing trains by using movies

〇Yuko Sato¹, Ken Watanabe¹, Kodai Matsuoka¹, Yasutaka Noma² (1.Railway Technical Research Institute, 2.HAZAMA ANDO CORPORATION)

[V-653] Proposal of a method for estimating chloride content at the position of reinforcing bars from the surface chloride content of actual structures

〇Hiroshi Miura¹, Kenji Ueto¹, Taketoshi Yamauchi¹, Takahiro Bandou² (1.West Nippon Expressway Engineering Chugoku Co.,Ltd., 2.West Nippon Expressway Co.,Ltd)

[V-654] Investigation results and evaluation of grout filling by cable shape in PC box girder bridge

〇Reiji Uehara¹, Kenji Ueto¹, Taketoshi Yamauchi¹, Takahiro Bando² (1.West Nippon Expressway Engineering Chugoku Co.,Ltd., 2.West Nippon Expressway Co.,Ltd.)

[V-655] Visualization of inside cracks in concrete dams by tomography

〇Hisafumi ASAUE ASAUE¹, Katsufumi HASHIMOTO¹, Tomoki SHIOTANI¹ (1.Kyoto University)

[V-656] Possibility of identification of residual load carrying capacity and structural characteristics of RCT girder bridge by numerical analysis

〇SHINNOSUKE トヨフク TOYOFUKU¹, Kohei Yamaguchi² (1.Graduate student, Department of Advanced Engineering, 2.Division of System Science)

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