Effects of CFRP Strengthening on Dynamic and Fatigue Responses of Composite Bridge
Joint Authors
Kuntiyawichai, Kittisak
Limkatanyu, Suchart
Source
Advances in Materials Science and Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-07
Country of Publication
Egypt
No. of Pages
10
Abstract EN
This paper investigates the effect of CFRP strengthening on dynamic and fatigue responses of composite bridge using finite element program ABAQUS.
Dynamic and fatigue responses of composite bridge due to truck load based on AASHTO standard are investigated.
Two types of CFRP strengthening techniques, CFRP sheets and CFRP deck, are applied to both the damaged and undamaged bridges.
For the case of damaged bridge, two through-thickness crack sizes, 3 mm and 6 mm in depth, are assumed at midspan of the steel girders.
Furthermore, effects of the number of steel girders on the dynamic and fatigue responses are also considered.
The results show that the maximum responses of composite bridges occur for dual lane cases.
By using CFRP as a strengthening material, the maximum stress and deflection of the steel girders reduce and consequently increase the fatigue life of the girders.
After introducing initial crack into the steel girders of the composite bridges, the fatigue life of the bridges is dramatically reduced.
However, the overall performance of the damaged composite bridge can be improved by using CFRP, albeit with less effectiveness.
Therefore, if cracks are found, steel welding must be performed before strengthening the composite bridge by CFRP.
American Psychological Association (APA)
Kuntiyawichai, Kittisak& Limkatanyu, Suchart. 2014. Effects of CFRP Strengthening on Dynamic and Fatigue Responses of Composite Bridge. Advances in Materials Science and Engineering،Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1015862
Modern Language Association (MLA)
Kuntiyawichai, Kittisak& Limkatanyu, Suchart. Effects of CFRP Strengthening on Dynamic and Fatigue Responses of Composite Bridge. Advances in Materials Science and Engineering No. 2014 (2014), pp.1-10.
https://search.emarefa.net/detail/BIM-1015862
American Medical Association (AMA)
Kuntiyawichai, Kittisak& Limkatanyu, Suchart. Effects of CFRP Strengthening on Dynamic and Fatigue Responses of Composite Bridge. Advances in Materials Science and Engineering. 2014. Vol. 2014, no. 2014, pp.1-10.
https://search.emarefa.net/detail/BIM-1015862
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1015862