Finite element analysis on the bond behavior of steel bar in salt–frost-damaged recycled coarse aggregate concrete

Su Tian; Wang Ting; Yi Haihe; Zheng Rui; Liu Yizhe; Zhai Haoran; Huang Zhanfang

doi:10.1515/rams-2021-0063

Reviews on Advanced Materials Science (Nov 2021)

Finite element analysis on the bond behavior of steel bar in salt–frost-damaged recycled coarse aggregate concrete

Su Tian,
Wang Ting,
Yi Haihe,
Zheng Rui,
Liu Yizhe,
Zhai Haoran,
Huang Zhanfang

Affiliations

Su Tian: Department of Civil Engineering, School of Civil and Architectural Engineering, Shandong University of Technology, Zibo, Shangdong, 255000, China
Wang Ting: Department of Civil Engineering, School of Civil and Architectural Engineering, Shandong University of Technology, Zibo, Shangdong, 255000, China
Yi Haihe: Department of Civil Engineering, School of Civil and Architectural Engineering, Shandong University of Technology, Zibo, Shangdong, 255000, China
Zheng Rui: Department of Civil Engineering, School of Civil and Architectural Engineering, Shandong University of Technology, Zibo, Shangdong, 255000, China
Liu Yizhe: Department of Civil Engineering, School of Civil and Architectural Engineering, Shandong University of Technology, Zibo, Shangdong, 255000, China
Zhai Haoran: Shandong Hi-Speed Urban & Rural Development Group Co. Ltd, Jinan, Shangdong, 250014, China
Huang Zhanfang: Department of Civil Engineering, School of Civil and Architectural Engineering, Shandong University of Technology, Zibo, Shangdong, 255000, China

DOI: https://doi.org/10.1515/rams-2021-0063
Journal volume & issue: Vol. 60, no. 1
pp. 853 – 861

Abstract

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In this article, the ABAQUS finite element software is used to simulate the bond behavior of the steel bar in salt–frost-damaged recycled coarse aggregate concrete, and the influence of the steel bar diameter and the concrete cover thickness on the bond strength is investigated. The result shows that the calculated bond–slip curve is in good agreement with the experimental bond–slip curve; the mean value of the ratio of the calculation results of ultimate bond strength to the experiment results of ultimate bond strength is 1.035, the standard deviation is 0.0165, and the coefficient of variation is 0.0159, which proves that the calculation results of the ultimate bond strength are in good agreement with the experimental results; with the increase of steel bar diameter and the concrete cover thickness, the ultimate bonding strength of RAC and steel increases; the calculation formulas for the ultimate bond strength of specimens with different steel bar diameters (concrete cover thickness) after different salt–frost cycles are obtained.

Published in Reviews on Advanced Materials Science

ISSN: 1605-8127 (Online)
Publisher: De Gruyter
Country of publisher: Poland
LCC subjects: Technology: Chemical technology
Website: https://www.degruyter.com/view/journals/rams/rams-overview.xml

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