Four-point bending test of composite girders for limit state design in Japan

Yuki Sato, Hajime Tachibana, Takeshi Miyashita, Kiyoshi Ono, Masahiro Shirato

研究成果: Conference contribution

抄録

In 2017, specifications for highway bridges in Japan was revised from allowable stress design to limit state design with partial factors. Since large earthquakes frequently occur in Japan, it is necessary to develop a reasonable and reliable load-carrying capacity evaluation method, which can take the partial plasticization of members into account in order to make a bridge work effectively. In this study, experimental data was obtained from bending tests for a steel girder with reinforced concrete slab. In particular, the influences of plastic neutral axis position, depth to thickness ratio of a web, the arrangement of reinforcing bars in the slab and the effect of composite action between the girder and the slab were investigated. As a result, concrete crushing of the slab occurred after reaching full plastic moment not only in the case designed by the current specifications but in the case that depth-to-thickness ratio of the web was increased compared with current specifications. In addition, the arrangement of reinforcing bars made possible to improve toughness after the maximum load. These results become useful information on the establishment of limit state design in Japan as well as maintenance of existing bridges.

本文言語English
ホスト出版物のタイトルBridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations - Proceedings of the 10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020
編集者Hiroshi Yokota, Dan M. Frangopol
出版社CRC Press/Balkema
ページ2511-2514
ページ数4
ISBN(電子版)9780367232788
DOI
出版ステータスPublished - 2021
イベント10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020 - Sapporo, Japan
継続期間: 2021 4 112021 4 15

出版物シリーズ

名前Bridge Maintenance, Safety, Management, Life-Cycle Sustainability and Innovations - Proceedings of the 10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020

Conference

Conference10th International Conference on Bridge Maintenaince, Safety and Management, IABMAS 2020
国/地域Japan
CitySapporo
Period21/4/1121/4/15

ASJC Scopus subject areas

  • 土木構造工学
  • 安全性、リスク、信頼性、品質管理

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