Reference Type:  Journal Article
Record Number: 1
Author: Wang, Y. X., Ji, B. H., Fu, Z. Q. and Yao, Y.
Year: 2019
Title: FATIGUE REPAIRING CRAFTSMANSHIP OF DECK-TO-VERTICAL STIFFENER WELD IN THE STEEL BRIDGE DECK
Journal: Advanced Steel Construction 
Volume: 15
Issue: 3
Pages: 232–241
Date: Sep
Type of Article: Article
Short Title: FATIGUE REPAIRING CRAFTSMANSHIP OF DECK-TO-VERTICAL STIFFENER WELD IN THE STEEL BRIDGE DECK
Alternate Journal: Adv. Steel Constr.
ISSN: 1816-112X
DOI: 10.18057/IJASC.2019.15.3.3
Keywords: Steel bridge deck
Vertical stiffener
Fatigue crack
Cracking reason
Repairing techniques
Abstract: Experiments and FE analysis were conducted on the fatigue repairing techniques of deck-to-vertical stiffener weld in the
steel bridge deck. The steel bridge deck was modeled to analyze cracking reason of deck-to-vertical stiffener weld. The
fatigue repairing experiment was carried out on three repairing techniques. The fatigue life and stress distribution of the
deck-to-vertical stiffener weld were analyzed and repairing effects were compared. Repairing craftsmanship with different
parameters was modeled to study change of stress distribution. Besides, influence of welding residual stress, stop-hole and
CFRP reinforcement on fatigue repairing was discussed. The results showed that cracks of welding end on the deck were
induced by out of plane deformation while those on the vertical stiffener were caused by combined out-of-plane and inplane deformation, which was more prone to cracking. Residual tensile stress reached yield strength of steel after re -
welding, thus hammering and polishing after re-welding could improve fatigue life of the weld. The re-welding techniques
had more favorable repairing effects than stop-hole and CFRP reinforcement.
Notes: Times Cited: 0
Cited Reference Count: 21
Author Address: Yi-xun Wang 1, Bo-hai Ji 1, *, Zhong-qiu Fu 1 and Yue Yao 1
1 School of Civil and Transportation Engineering, Hohai University, Nanjing 210098, China
* (Corresponding author: E-mail: bhji@hhu.edu.cn)
Language: English