Crack Identification Method for Prefabricated Concrete Pavement Based on Distributed Strain Monitoring
Abstract
:1. Introduction
2. Crack Identification Method Based on Distributed Long-Gauge Optic Fiber Sensing
2.1. Distributed Long-Gauge Optic Fiber Sensing
2.2. Crack Identification Method
3. Finite Element Modeling of Prefabricated Pavement
3.1. General Information of Prefabricated Pavement Model
3.1.1. Pavement Model Construction
3.1.2. Crack Simulation and Location Selection
3.1.3. Sensor Position Selection and Scale Distance Optimization
3.2. Results of Crack Identification
3.2.1. Single Crack
3.2.2. Multiple Cracks
3.3. Analysis of Influencing Factors
3.3.1. Aircraft Taxiing Position
3.3.2. Aircraft Load Value
3.3.3. Aircraft Type
4. Loading Test with Small-Scale Model of Prefabricated Concrete Pavement
4.1. Experimental Setup
4.1.1. Test Scaling and Model Parameters
4.1.2. Monitoring System Design
4.1.3. Performance Analysis of Self-Sensing Reinforcement and Strain Sensing
- (1)
- Self-sensing steel fabrication
- (2)
- Strain sensing performance test
4.2. Pilot Program Implementation
4.3. Crack Identification Analysis
4.3.1. Test Loading Condition
4.3.2. Analysis of Test Results
5. Conclusions and Remarks
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Maximum Take-Off Weight (kN) | Tire Pressure (MPa) | Main Landing Gear Configuration | Single Wheel Load (kN) | Area of a Single Wheel (m2) | Wheel Print Length (m) | Wheel Printing Width (m) |
---|---|---|---|---|---|---|
792.04 | 1.47 | Two axles and two wheels | 376.22 | 0.25593 | 0.610 | 0.420 |
Crack length (mm) | 0 | 250 | 500 | 750 | 1000 | 1250 | 1500 | 1750 | 2000 | 2250 | 2500 |
Crack height (mm) | 0 | 30 | 60 | 90 | 120 | 150 | 180 | 210 | 240 | 270 | 300 |
D | 0 | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.7 | 0.8 | 0.9 | 1 |
Aircraft Type | Tire Pressure (MPa) | Main Landing Gear Configuration | Single Wheel Load (kN) | Wheel Length (m) | Wheel Width (m) |
---|---|---|---|---|---|
Su-30 | 1.53 | Single axle, single wheel | 157.22 | 0.432 | 0.298 |
A320 | 1.14 | two axles and two wheels | 183.83 | 0.484 | 0.333 |
A330-300 | 1.42 | two axles and two wheels | 560.19 | 0.756 | 0.522 |
B777-300ER | 1.50 | tricycle with two wheels | 532.12 | 0.717 | 0.495 |
Structural Configuration | Parameters | Value (mm) | |
---|---|---|---|
Prototype | Model | ||
Pavement panel | Plane size | 5000 × 2500 | 1500 × 750 |
High degree | 400 | 120 | |
Steel | Caliber | 14 | 8 |
Connection | Caliber | 20 | 8 |
Value | Aircraft Type | Tire Pressure (MPa) | Quality (t) | Loading (kN) | Tire Spacing (mm) | Tire Ground Size/mm | |
---|---|---|---|---|---|---|---|
Length | Height | ||||||
Archetype | B-737-800 | 1.47 | 75.24 | 752.44 | 860 | 610 | 420 |
Pattern | B-737-800 | 1.47 | 3.89 | 38.90 | 258 | 183 | 126 |
Gauge (mm) | 1# | 2# | 3# | Average Value | Standard Deviation | Coefficient of Variation (%) |
---|---|---|---|---|---|---|
150 | 1.1450 | 1.1408 | 1.1417 | 1.1425 | 0.0018 | 0.1580 |
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Tang, Y.; Zheng, B.; Yu, T. Crack Identification Method for Prefabricated Concrete Pavement Based on Distributed Strain Monitoring. Buildings 2024, 14, 2520. https://doi.org/10.3390/buildings14082520
Tang Y, Zheng B, Yu T. Crack Identification Method for Prefabricated Concrete Pavement Based on Distributed Strain Monitoring. Buildings. 2024; 14(8):2520. https://doi.org/10.3390/buildings14082520
Chicago/Turabian StyleTang, Yongsheng, Bohan Zheng, and Tao Yu. 2024. "Crack Identification Method for Prefabricated Concrete Pavement Based on Distributed Strain Monitoring" Buildings 14, no. 8: 2520. https://doi.org/10.3390/buildings14082520