Experimental Study on Prefabricated Steel Fiber-Reinforced Concrete Casing Arch Method for Strengthening Cracked Lining in Confined Spaces
Abstract
:1. Introduction
2. Experimental Design and Loading Scheme
2.1. Experimental Purposes
2.2. Specimen
2.3. Experimental Preparation and Loading
3. Experimentation Results
3.1. Reinforcement Performance of Steel Fiber-Reinforced Concrete
3.2. Reinforcement Performance of Reinforced Concrete
4. Establishment of Numerical Test Model
4.1. Model Profile
4.2. Material Parameter
4.3. Material Constitutive Model
4.3.1. Concrete Constitutive Model
- (1)
- Compressive Constitutive Model
- (2)
- Tensile Constitutive Model
4.3.2. Steel Constitutive Model
4.3.3. Contact Surface Configuration
4.4. Simulated Calculation Conditions
5. Modeling Results
5.1. Reinforcement Performance of Different Materials at Variable Cross-Section
5.2. Influence of Variable Section Thickness of Sleeve Arch on Reinforcement Performance
5.2.1. Reinforcement Performance of the Medium Crack Lining
5.2.2. Reinforcement Performance of the Severely Cracked Lining
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
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Material | Density (KN/m3) | Elastic Modulus (Mpa) | Poisson Ratio |
---|---|---|---|
C50 steel fiber-reinforced concrete | 25.0 | 34,500 | 0.20 |
Steel reinforcement | 78.5 | 200,000 | 0.30 |
C25 concrete | 25.0 | 28,000 | 0.20 |
Waterproof plate | 8.6 | 10 | 0.45 |
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Zhou, Y.; Lin, Z.; Liu, L.; Zhou, J. Experimental Study on Prefabricated Steel Fiber-Reinforced Concrete Casing Arch Method for Strengthening Cracked Lining in Confined Spaces. Appl. Sci. 2024, 14, 5941. https://doi.org/10.3390/app14135941
Zhou Y, Lin Z, Liu L, Zhou J. Experimental Study on Prefabricated Steel Fiber-Reinforced Concrete Casing Arch Method for Strengthening Cracked Lining in Confined Spaces. Applied Sciences. 2024; 14(13):5941. https://doi.org/10.3390/app14135941
Chicago/Turabian StyleZhou, Yu, Zhi Lin, Lili Liu, and Jianghao Zhou. 2024. "Experimental Study on Prefabricated Steel Fiber-Reinforced Concrete Casing Arch Method for Strengthening Cracked Lining in Confined Spaces" Applied Sciences 14, no. 13: 5941. https://doi.org/10.3390/app14135941
APA StyleZhou, Y., Lin, Z., Liu, L., & Zhou, J. (2024). Experimental Study on Prefabricated Steel Fiber-Reinforced Concrete Casing Arch Method for Strengthening Cracked Lining in Confined Spaces. Applied Sciences, 14(13), 5941. https://doi.org/10.3390/app14135941