TY  - JOUR
PY  - 2023//
TI  - Anti-blast performance of polyurea-coated concrete arch structures
JO  - Polymers (Basel)
A1  - Yue, Zhengyuan
A1  - Zhou, Jiannan
A1  - Kong, Xinli
A1  - Xu, Ying
A1  - Chen, Yishun
A1  - Wang, Bo
A1  - Huang, Yimiao
A1  - Wang, Peng
SP  - e1263
EP  - e1263
VL  - 15
IS  - 5
N2  - 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.<p />  <p>Language: en</p>
LA  - en
SN  - 2073-4360
UR  - http://dx.doi.org/10.3390/polym15051263
ID  - ref1
ER  -