Please use this identifier to cite or link to this item:
Title: Residual punching shear capacity of corroded reinforced concrete slabs
Authors: Yang, Zhihong
Zhang, Xinchen
Li, Bing
Keywords: Engineering::Civil engineering
Issue Date: 2022
Source: Yang, Z., Zhang, X. & Li, B. (2022). Residual punching shear capacity of corroded reinforced concrete slabs. Magazine of Concrete Research, 1-15.
Journal: Magazine of Concrete Research 
Abstract: Steel reinforcement corrosion is becoming a critical issue since more old buildings are still in operations with great probability of substantial corrosion in reinforcements. The strength and serviceability of corroded RC slab is remarkably impacted by the corrosion. Therefore, it is vital to understand more about the punching shear mechanism of the slabs subjected to corrosion effects in order to make a good prediction on its residual capacity. In this paper, critical shear crack theory (CSCT) was further developed to predict the residual punching shear strength of corroded RC slabs, considering the material properties deterioration induced by the corrosion. The effectiveness of modified CSCT was verified by comparing with the available experimental results. In addition, a validated FEM model that considers the material deterioration and bond degradation was proposed to verify the accuracy of proposed model. Finally, a parametric study, including 240 cases, was conducted to investigate the effect of some important factors on punching shear behavior of corroded RC slabs based on modified CSCT. The outcomes demonstrated that the residual punching shear capacity predicted by the proposed model is more accurate than existing design codes. The predicted failure modes had also shown fairly good agreement with the experimental results.
ISSN: 0024-9831
DOI: 10.1680/jmacr.21.00308
Schools: School of Civil and Environmental Engineering 
Rights: © 2022 ICE Publishing: All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:CEE Journal Articles

Page view(s)

Updated on Oct 3, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.