Low-cycle fatigue behavior of H-shaped steel piles of an integral concrete bridge subjected to temperature variations

The main purpose of this research is to estimate the fatigue life of steel piles of an integral bridge under displacement control conditions due to temperature variations. To this end, Finite Element (FE) simulation was performed to determine the critical region which is apt to fail. In this regard, the mesh size adopted considering total strain (sum of elastic and plastic strains). After that, the fatigue life of the component was calculated in the critical element using FE results and employing the strain-life criterion. Finally, the finite element results were compared with the available experimental results. This comparison showed that there was only 6.5% difference between the simulation results and the fatigue test data. Moreover, the findings of this study revealed that during 213 cycles of loading, cracks or tears with a length of 12 mm are created in the structure. Moreover, the tear size increases three times by continuing loading up to 529 cycles. (c) 2020 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the Innovative Manufacturing, Mechatronics & Materials Forum 2020.

Authors
Abdollahnia H. 1 , Elizei M.HA.1 , Kashyzadeh K.R. 2
Conference proceedings
Publisher
ELSEVIER
Language
English
Pages
1657-1662
Status
Published
Volume
46
Year
2021
Organizations
  • 1 Islamic Azad Univ, Roudehen Branch, Dept Civil Engn, Roudehen, Iran
  • 2 Peoples Friendship Univ Russia, RUDN Univ, Dept Mech & Instrumental Engn, Acad Engn, 6 Miklukho Maklaya St, Moscow 117198, Russia
Keywords
Integral concrete bridge; Steel piles; Fatigue behavior; Temperature variations; FE simulation
Date of creation
20.07.2021
Date of change
20.07.2021
Short link
https://repository.rudn.ru/en/records/article/record/74619/
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