Techno Press
You logged in as Techno Press

Steel and Composite Structures
  Volume 36, Number 4, August25 2020 , pages 463-480
DOI: https://doi.org/10.12989/scs.2020.36.4.463
 


Ductile crack initiation evaluation in stiffened steel bridge piers under cyclic loading
Wataru Fujie, Miki Taguchi, Lan Kang, Hanbin Ge and Bin Xu

 
Abstract
    Although detailed shell analysis is suitable to predict the ductile crack initiation life of steel members, such detailed method adds time expense and complexity. In order to simply predict the ductile crack initiation life of stiffened steel bridge piers, a total of 33 cases are simulated to carry out the parametric analyses. In the analysis, the effects of the width-to-thickness ratio, slenderness ratio, plate thickness and so on are considered. Both shell analyses and beam analyses about these 33 cases are conducted. The plastic strain and damage index obtained from shell and beam analyses are compared. The modified factor Bs is determined based on the predicted results obtained from both shell and beam analyses in order to simulate the strain concentration at the base corner of the steel bridge piers. Finally, three experimental results are employed to verify the validity of the proposed method in this study.
 
Key Words
    stiffened steel bridge pier; ductile crack initiation; evaluation method; cyclic loading
 
Address
Wataru Fujie, Miki Taguchi and Hanbin Ge: Department of Civil Engineering, Meijo University, Nagoya 468-8502, Japan
Lan Kang: School of Civil Engineering and Transportation, South China University of Technology, Guangzhou, Guangdong Province,
510641, People's Republic of China;
State Key Laboratory of Subtropical Building Science, South China University of Technology, Guangzhou,
Guangdong Province, 510641, People's Republic of China
Bin Xu: College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, People' s Republic of China
Key Laboratory for Intelligent Infrastructure and Monitoring of Fujian Province
(Huaqiao University), Xiamen, Fujian 361021, People's Republic of China
 

Techno-Press: Publishers of international journals and conference proceedings.       Copyright © 2025 Techno Press
P.O. Box 33, Yuseong, Daejeon 305-600 Korea, Tel: +82-42-828-7996, Fax : +82-42-828-7997, Email: admin@techno-press.com