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Updated: Aug 7, 2025
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Blast Quantification Using Hopkinson Pressure Bars
Published on: July 5, 2016
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Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures
Zhengyuan Yue1, Jiannan Zhou2, Xinli Kong1
1State Key Laboratory for Disaster Prevention & Mitigation of Explosion & Impact, Army Engineering University of PLA, Nanjing 210007, China.
Polymers
|March 11, 2023
Summary
Polyurea reinforcement enhances concrete arch structures against blast loads. Optimal thickness is around 5 mm, with sandwich structures showing excellent vibration damping, though more layers don't always improve performance.
Area of Science:
- Civil Engineering
- Materials Science
- Structural Engineering
Background:
- Increasing global terrorist attacks necessitate improved structural anti-blast performance.
- Reinforcing exterior structures is a common strategy to mitigate blast effects.
Purpose of the Study:
- To explore the dynamic performance of polyurea-reinforced concrete arch structures under blast loads.
- To investigate the influence of polyurea reinforcement on structural deflection and vibration.
Main Methods:
- A three-dimensional finite element model was developed using LS-DYNA software.
- The model's validity was ensured before simulating blast load responses.
- Deformation and vibration analyses were conducted for various reinforcement configurations.
Main Results:
- An optimal polyurea reinforcement thickness of approximately 5 mm was identified.
- Sandwich arch structures demonstrated excellent vibration damping capabilities.
- Increasing polyurea thickness or layers did not consistently enhance vibration damping.
Conclusions:
- Polyurea reinforcement offers a viable method for improving the anti-blast and vibration damping performance of concrete arch structures.
- Reasonable design of polyurea layers and concrete arches can create effective protective structures.
- Polyurea shows potential as a novel reinforcement material in practical applications.
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