Experimental study on buckling strength of stub-column with box section made of SBHS700

J. Nie, K. Ono, S. Okada, N. Takeshima

研究成果: Conference contribution

抄録

High performance steel SBHS (Steels for Bridge High Performance Structure) has been introduced in Japan recently with three strength grades, 400 MPa, 500 MPa, and 700 MPa. The mechanical characteristics of SBHS include high yield strength, toughness, and great weldability due to its fine microstructure. However, few studies have been conducted on the relatively new SBHS. Therefore, the objective of this study is to examine the local buckling strength and the buckling behavior of a stub-column with box section made of SBHS700 through conducting the uniaxial compression test. The width-to-thickness ratio parameter is designed to be the limiting value described in the ultimate strength curves. In terms of the experimental results, the load, displacement, and strain at different locations are investigated to understand the local buckling phenomena. The out-of-plane deformation as well as the progression of the strain measured at both sides of the plate are used to show the plate buckling phenomena. Large out-of-plane deformation was found after reaching the yield load near the maximum load due to plate buckling. Moreover, the local buckling strength of the test specimens with the limiting width-to-thickness ratio parameter made of SBHS700 was found to be possible to be evaluated based on the current ultimate strength design curves.

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3852-3857
ページ数6
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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