Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures

Zhengyuan Yue; Jiannan Zhou; Xinli Kong; Ying Xu; Yishun Chen; Bo Wang; Yimiao Huang; Peng Wang

doi:10.3390/polym15051263

journal article Open Access Mar 02, 2023

Anti-Blast Performance of Polyurea-Coated Concrete Arch Structures

Zhengyuan Yue Jiannan Zhou Xinli Kong Ying Xu

Yishun Chen Bo Wang

Yimiao Huang

Peng Wang

Polymers Vol. 15 No. 5 pp. 1263 · MDPI AG

View at Publisher Save 10.3390/polym15051263

Abstract

With the increasing number of violent terrorist attacks around the world, it is quite a common to improve the anti-blast performance of structures by reinforcing the exterior of the structure. In order to explore the dynamic performance of polyurea reinforced concrete arch structures, a three-dimensional finite element model was established by LS-DYNA software in this paper. Under the condition of ensuring the validity of the simulation model, the dynamic response of the arch structure under the blast load is investigated. Deflection and vibration of the structure under different reinforcement models are discussed. The optimum thickness of reinforcement (approximately 5 mm) and the strengthening method for the model were found by deformation analysis. The vibration analysis shows that the vibration damping effect of the sandwich arch structure is relatively excellent, but increasing the thickness and number of layers of the polyurea does not necessarily achieve a better vibration damping function for the structure. By reasonable design of the polyurea reinforcement layer and concrete arch structure, a protective structure with excellent performance of anti-blast and vibration damping can be created. Polyurea can be used as a new form of reinforcement in practical applications.

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Details

Published: Mar 02, 2023
Vol/Issue: 15(5)
Pages: 1263
License: View

Authors

Z

Zhengyuan Yue