Japan Society of Civil Engineers 2025 Annual Meeting
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Session Details

Oral PresentationSection VI

補修・補強(2)

Thu. Sep 11, 2025 11:10 AM - 12:30 PM JST
Thu. Sep 11, 2025 2:10 AM - 3:30 AM UTC
221
11:10 AM - 11:20 AM JST(2:10 AM - 2:20 AM UTC)

[VI-458]The Instance of Corrosion Protection Work on Steel Foundations of Urban Expressway, 50 Years after Construction

*Hisanori Nagai1, Keito Miura1, Tsutomu Nakai2, Naoya Kobatake2 (1. KONOIKE CONSTRUCTION CO.,LTD., 2. HANSHIN EXPRESSWAY COMPANY LIMITED.)
11:20 AM - 11:30 AM JST(2:20 AM - 2:30 AM UTC)

[VI-459]The instance of replacing metal bearings that support a steel foundation on an underground box structure

*Keito Miura1, Hisanori Nagai1, Tsutomu Nakai2, Naoya Kobatake2 (1. KONOIKE CONSTRUCTION CO.,LTD., 2. HANSHIN EXPRESSWAY COMPANY LIMITED.)
11:30 AM - 11:40 AM JST(2:30 AM - 2:40 AM UTC)

[VI-460]Study on corrosion of PC steel bars in sheath environments with minimal air leakage

*Kensaku Ishibashi1, Takeshi Yamaguti2, Shinya Watanabe3, Kenta Nitta4 (1. Central-NEXCO Technical Marketing Co., Ltd., 2. Central Nippon Expressway Co., Ltd. , 3. LiT Co., Ltd., 4. Japan Construction Method and Machinery Research Institute)
11:40 AM - 11:50 AM JST(2:40 AM - 2:50 AM UTC)

[VI-461]Experimental Study on Fatigue Durability of Fatigue Countermeasures for Intersections of U-shape closed Rib and Transverse Rib in Orthotropic steel deck

*Sae Fukutsuji1, Masahiro Hirano1, Hajime Hida1, Hitoshi Yatsumoto1, Yu Nakamoto2, Shinsuke Akamatsu2 (1. Hanshin Expressway Company, 2. Hanshin Expressway Reserch Institute for AdvancedTechnology)
11:50 AM - 12:00 PM JST(2:50 AM - 3:00 AM UTC)

[VI-462]Report on Repairing Floor Slabs with Ultra-High-Performance Fiber-Reinforced Concrete for Nighttime Traffic Control

*Yusuke Arai2, Ryou Ayachi1, Souten Shiotari1, Yoshio Kisu2, Minori Enomoto2, Yasunari Fujii2, Yoshiyuki Uehara3 (1. West Nippon Expressway Company Limited, 2. OBAYASHI CORPORATION, 3. OBAYASHI ROAD CORPORATION)
12:00 PM - 12:10 PM JST(3:00 AM - 3:10 AM UTC)

[VI-463]A Study on Seismic Performance Verification and Seismic Retrofit of Existing Steel Foundations

*Naoya Kobatake1, Tsutomu Nakai1, Fukutarou Umebayashi2, Shougo Ohtake2, Hisanori Nagai3 (1. HANSHIN EXPRESSWAY CO.,Ltd., 2. ORIENTAL CONSULTANTS Co., Ltd., 3. KONOIKE CONSTRUCTION Co.,Ltd.)
12:10 PM - 12:20 PM JST(3:10 AM - 3:20 AM UTC)

[VI-464]A Study on Bolted Joints of Steel Plate Reinforcement for Existing Steel Foundations

*Fukutaro Umebayashi1, Shogo Ohtake1, Naoya Kobatake2, Tsutomu Nakai2, Hisanori Nagai3 (1. ORIENTAL CONSULTANTS Co., Ltd., 2. HANSHIN EXPRESSWAY Co., Ltd., 3. KONOIKE CONSTRUCTION CO.,LTD.)
12:20 PM - 12:30 PM JST(3:20 AM - 3:30 AM UTC)

[VI-465]A study on predicting discoloration time of steel bridge deck pavement

*Seiya Akimoto1, Misuzu Matsumura1, Kyosuke Amano1 (1. Kokusai Kogyo Co., Ltd.)
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