Examining the yielding displacement of concrete bridge piers equipped with shape memory alloy rebars

Scientific paper - Original scientific paper

• Author: Emad Abraik
• Author's institution: University of Zagreb; Faculty of Civil Engineering
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract (english)

The common corrosion problem in conventional steel reinforcement induces a significant
deterioration of the bridge pier’s yielding displacement and ductility. Superelastic shape memory
alloy (SE-SMA) possesses a high corrosion resistance and retrievers its original shape upon
load removal. The unique material properties attract the attention for structural design use.
However, the yielding displacements of members reinforced with SE-SMA materials required
an investigation to fully understand the material’s effect. In this paper, an extensive parametric
study is performed to estimate the yielding displacement of bridge pier reinforced with SE-SMA
rebars. The parametric study’s size is decided by varying the reinforced concrete (RC) section
characteristics, including axial load ratio, pier diameter, aspect ratio, reinforcement ratio, and
confinement coefficient. Results of this study proposed an approximate formula to estimate the
yielding displacement of SE-SMA bridge piers.

• Keywords (english): bridge pier, shape memory alloy, yielding displacement, pushover analysis
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Unknown
• Publication version: Published version
• Publication title: 1st Croatian Conference on Earthquake Engineering 1CroCEE
• Numbering: pp. 853-861
• p-ISSN: 3043-8071
• DOI: https://doi.org/10.5592/CO/1CroCEE.2021.8
• URN:NBN: urn:nbn:hr:237:639297
• Publication: 2021-03
• Conference: Title: st Croatian Conference on Earthquake Engineering; Location: Zagreb, Croatia; Start date: 2021-03-22; End date: 2021-03-24; Assembly type: Lecture
• Type of resource: Text
• Publisher: Sveučilište u Zagrebu Građevinski fakultet
• Access conditions: Open access
• Created on: 2024-09-02 06:21:08