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<p>Finite-element analysis method to ensure the safety of invisible capping beams reinforced via the quick-replacement method</p>

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Title Statement <p>Finite-element analysis method to ensure the safety of invisible capping beams reinforced via the quick-replacement method</p>
 
Added Entry - Uncontrolled Name Shuai, Tian ; School of Civil Engineering, Liaoning University of Science and Technology, Anshan 114051, China
Sun, Bo ; School of Civil Engineering, Liaoning University of Science and Technology, Anshan 114051, China
Zhang, Luyang ; School of Civil Engineering, Liaoning University of Science and Technology, Anshan 114051, China
This work was supported by the scientific research project of Liaoning Education Department (2020LNJC02) and the Excellent Talents training project of Liaoning University of Science and Technology (2019RC01).
 
Uncontrolled Index Term Bridge engineering, Pier structure, Safe maintenance, MIDAS/FEA, Replacement method
 
Summary, etc. <p>This paper presents a Finite-Element Analysis (FEA) method to solve the problem of reduced bridge safety due toinsufficient durability of invisible capping beams. To reinforce a C30 invisible capping beam effectively and reasonably, aquick-repair replacement concrete reinforcement method was utilized, and the strength necessary for the appropriate admixtureassessed. Specifically, the bearing capacity of the reinforced capping beam was studied via a single-point loading test, and theoptimal replacement thickness required to install the beam within two days and restore normal operation within three days wasdetermined using the non-linear software package MIDAS FEA. A finite-element model of equivalent size was employed usingMIDAS FEA to obtain the deflection, tensile stress, and pressure stress at the boundary. The results indicate that C40 earlystrength concrete with 0.1–0.2% sodium gluconate admixture has the appropriate properties to achieve the target. It can be usedto replace deteriorated concrete on the surface of invisible capping beams with a replacement rate of 30%. Further, to achievethe goal of resuming traffic within three days, the analysis results indicate that bilateral replacement with thickness 2 × 10 cm isoptimal and the maximum replacement thickness should not exceed 2 × 20 cm.</p>
 
Publication, Distribution, Etc. Indian Journal of Engineering and Materials Sciences (IJEMS)
2022-08-25 03:20:50
 
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http://op.niscair.res.in/index.php/IJEMS/article/view/47364
 
Data Source Entry Indian Journal of Engineering and Materials Sciences (IJEMS); ##issue.vol## 29, ##issue.no## 4 (2022): IJEMS-AUGUST 2022
 
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