A study on the effectiveness of energy absorbing rubber in pin-fixed cable restrainer of a bridge

Hiroki Tamai, Mariko Uno, Yoichi Yuki, Yoshimi Sonoda, Toshihiro Kasugai

研究成果: Contribution to journalArticle査読

1 被引用数 (Scopus)

抄録

The Japanese specifications for highway bridges require unseating prevention devices to be installed on bridges as necessary. Recently, a new type of cable restrainer was developed where the assembly allows the cable to rotate without restriction on the brackets' mounting angle. Cylindrical rubber pieces are inserted around pins to absorb impact forces. However, no standard design method has been established for the shock absorbers so far. This paper presents the impact-resisting characteristics of a pin-fixed cable device; design indications for shock absorbers were acquired based on the results of impact tests on bracket models of actual restrainers. The results showed that the pin-fixed restrainers had sufficient impact resistance for all tested sizes and that the maximum impact load showed consistent trends. Finite element analysis was also performed on the device assuming hyper-elastic bodies for rubber pieces. The numerical results sufficiently represented the impact response trend obtained from the experimental results.

本文言語英語
ページ(範囲)219-238
ページ数20
ジャーナルInternational Journal of Protective Structures
5
2
DOI
出版ステータス出版済み - 6 1 2014

All Science Journal Classification (ASJC) codes

  • 建築および建設
  • 安全性、リスク、信頼性、品質管理
  • 材料力学

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