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Study on the Durability of the T-Beam Based on Chloride Ion Erosion
State Key Laboratory of Mountain Bridge and Tunnel Engineering, Chongqing Jiaotong University, Chongqing 400074, China
School of Civil Engineering, Chongqing Jiaotong University, Chongqing 400074, China
Author to whom correspondence should be addressed.
Materials 2020, 13(7), 1504; https://doi.org/10.3390/ma13071504 (registering DOI)
Received: 22 February 2020 / Revised: 23 March 2020 / Accepted: 24 March 2020 / Published: 25 March 2020
Based on analyzing the bearing capacity of existing T-beam bridges in service, the factors that affect the T-beams cracked by chloride ions mainly include the width and the depth of cracks. Combined with practical engineering examples, a single-piece T-beam model is established to explore the influence of factors such as crack width and crack depth on the T-beams affected by chloride ion erosion through numerical simulation in this paper. In addition, the attenuation models of bending capacity and shear capacity of the T-beam are obtained to analyze the possible failure modes of T-beams with cracks. All of which provides a reference for exploring the effect of crack width and depth on the durability of reinforced concrete members under chloride ion field.
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