Japan Society of Civil Engineers 2025 Annual Meeting
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Session Details

Oral PresentationEarthquake Engineering and Earthquake Disasters

橋梁の耐震(1)

Thu. Sep 11, 2025 1:00 PM - 2:20 PM JST
Thu. Sep 11, 2025 4:00 AM - 5:20 AM UTC
3F G1+G2
1:00 PM - 1:10 PM JST(4:00 AM - 4:10 AM UTC)

[CS10-01]Application of data assimilation to estimate subgrade spring constant of bridge for time history response analysis

*Noa Igarashi1, Tamano Keigo1, Devin Gunawan1, Sogabe Naoki1 (1. KAJIMA Corporation)
1:10 PM - 1:20 PM JST(4:10 AM - 4:20 AM UTC)

[CS10-02]Statistical Evaluation of the Effects of Variations in Seismic Motion and Material Properties on Bridge Response

*Taiki Kawamura1, Takumi Kobayashi1, Michio Ohumi1 (1. Public Works Research Institute)
1:20 PM - 1:30 PM JST(4:20 AM - 4:30 AM UTC)

[CS10-03]A Study on the Method for Determining the Input Direction of Design Earthquake Motions for Skew Bridges

*Yukitoshi Taniguchi1, Michio Ohsumi1 (1. Public Works Research Institute)
1:30 PM - 1:40 PM JST(4:30 AM - 4:40 AM UTC)

[CS10-04]The effect of the ground stiffness recovery process after a large-scale earthquake on the seismic response characteristics of elevated bridges

*Yusuke Nakahara1, Kimitoshi Sakai1, Murono Yoshitaka1 (1. Railway Technical Reserch Institute)
1:40 PM - 1:50 PM JST(4:40 AM - 4:50 AM UTC)

[CS10-05]Experimental Study on Retrofit Structures for Improving the Seismic Performance of Existing BP-A Bearings

*Guangfeng Zhang1, Kazuki Yamamoto1, Akimasa Mizutani1, Junki Maeda2, Jun Inoue2, Ikue Suda2, Yasunobu Asakura3, Nobuhiro Yamazaki3, Long Bai3 (1. Shutoko Technology Center, 2. Metropolitan Expressway Company Limited, 3. Nippon Chuzo K.K.)
1:50 PM - 2:00 PM JST(4:50 AM - 5:00 AM UTC)

[CS10-06]Report on the construction of a reinforced structure installed on an existing BP-A bearing as a measure to improve seismic performance

*Rikuta Yamamoto1, Nishibata Tomohiro1, Yoshimura Takashi1, Kunitake Tsuyoshi2, Yamazaki Shota2, Kametani Rintaro2, Asakura Yasunobu3, Nobuhiro Yamazaki3, Long Bai3 (1. Metropolitan Expressway Company Limited, 2. Kawada Construction Co.,Ltd., 3. NIPPON CHUZO K.K.)
2:00 PM - 2:10 PM JST(5:00 AM - 5:10 AM UTC)

[CS10-07]Analytical study on the reinforcing effect of BP-A bearings using reinforcing structures

*Akimasa Mizutani1, Guangfeng Zhang1, Junki Maeda2, Jun Inoue2 (1. Shutoko Technology Center, 2. Metropolitan Expressway)
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