Vol. 21, No. 5, pp. 425-435 (2025)
LOAD-SLIP BEHAVIOR OF PERFOBOND SHEAR CONNECTORS POST
HYDROCHLORIC ACID CORROSION ON BEARING CAPACITY
Fan Yang 1, Wen-Jing Qiao 1, *, Ting-Kun Zhou 1, Yun-Long Li 1, Zhi-Dan Ruan 1 and Shou-Fu Li 2
1 Dept. of Civil and Architecture Engineering, Xi'an Technological Univ., Xuefuzhonglu Ave.,
Weiyang District, Xi’an City, Shaanxi Province 710021, China
2 China Construction Third Bureau Group Northwest Limited company, Jinyelu Ave.,
Yanta District, Xi’an City, Shaanxi Province 710076, China
*(Corresponding author: E-mail:This email address is being protected from spambots. You need JavaScript enabled to view it.)
Received: 22 July 2024; Revised: 15 January 2025; Accepted: 6 February 2025
DOI:10.18057/IJASC.2025.21.5.5
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ABSTRACT
The study conducted push-out tests on seven specimen groups to investigate the load-slip behavior of PBL shear connectors affected by hydrochloric acid corrosion. Among them, the corrosion time of PBL shear connectors in specimens was 0, 1, 4, 12, 24, 48 and 72 h, respectively. Based on the test verification, 147 refined finite element models with varying corrosion durations were developed to examine factors such as concrete strength grade, end bearing conditions, penetrated steel bar diameter, and hole size in the steel plate. The load-slip characteristics decrease gradually with increased corrosion time. When the concrete grade, penetrated steel bar diameter, and steel plate hole size were increased to C60, 25 mm, and 65 mm, the slippage decreased by 17.13%, 9.49%, and 11.77%, respectively. Additionally, the slip amount under end pressure was 8.26% lower compared to that without end pressure. The load-slip formula is proposed by comparing the test findings.
KEYWORDS
Perfobond shear connectors, Hydrochloric acid corrosion, Push-out experiment, Load-slip characteristics
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