Blast responses of polyurea-coated concrete arches

• Autorzy: Liu, Yang , Wang, Peng , Jin, Fengnian , He, Huguang , Zhou, Jiannan , Wang, Bo , Fan, Hualin
• Języki publikacji: EN

Abstrakty

EN

The effects of polyurea coating on anti-explosion performances of reinforced concrete arches were studied through explosion experiments. Three coating schemes were proposed and investigated, including intrados coating, enclosed coating and fiber-grid/polyurea hybrid coating. The arches exhibit cracking, spalling and crashing failure modes in succession accompanying with reducing the scaled distance. The damage degree of the exploded arch is evaluated quantitatively by the residual load carrying capacity under quasi-static mid-span concentrated loading experiments. It is revealed that polyurea coatings have excellent anti-spalling ability than carbon fiber-reinforced polymer (CFRP) strengthening method and greatly increase the blast-resistance of the concrete arch and enclosed polyurea coating is the most efficient.

Słowa kluczowe

PL

łuk betonowy; wybuch; uszkodzenie

EN

concrete arch; polyurea coating; explosion; damage

• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2021
• Tom: Vol. 21, no. 1
• Strony: 503--517
• Opis fizyczny: Bibliogr. 23 poz., fot., rys., wykr.

Twórcy

autor

Liu, Yang

• State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing 210007, China

autor

Wang, Peng

• State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing 210007, China

autor

Jin, Fengnian

• State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing 210007, China,

autor

He, Huguang

• State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing 210007, China

autor

Zhou, Jiannan

• State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing 210007, China

autor

Wang, Bo

• State Key Laboratory of Disaster Prevention and Mitigation of Explosion and Impact, Army Engineering University of PLA, Nanjing 210007, China

autor

Fan, Hualin

• National Key Laboratory of Science and Technology on Materials under Shock and Impact, Beijing Institute of Technology, Beijing 10081, China,
• State Key Laboratory of Mechanics and Control of Mechanical Structures, Research Center of Lightweight Structures and Intelligent Manufacturing, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Bibliografia

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• [2] Chen YS, Wang B, Zhang B, et al. Polyurea coating for foamed concrete panel: an efficient way to resist explosion. Def Technol. 2020;16:136–49.
• [3] Ackland K, Anderson C, Ngo TD. Deformation of polyurea-coated steel plates under localised blast loading. Int J Impact Eng. 2013;51:13–22.
• [4] Wang JG, Ren HQ, Wu XY, et al. Blast response of polymer-retrofitted masonry unit walls. Compos Part B. 2017;128:174–81.
• [5] Wang P, Jiang MR, Zhou JN, et al. Spalling in concrete arches subjected to shock wave and CFRP strengthening effect. Tunn Undergr Space Tech. 2018;74:10–9.
• [6] Wang P, Jiang MR, Chen HL, et al. Load carrying capacity of CFRP retrofitted broken concrete arch. Steel Compos Struct. 2017;23(2):187–94.
• [7] Liu SF, Zhou YZ, Zhou JN, et al. Blast responses of concrete beams reinforced with GFRP bars: experimental research and equivalent static analysis. Compos Struct. 2019;226:111271.
• [8] Liu SF, Zhou YZ, Zheng Q, et al. Blast responses of concrete beams reinforced with steel-GFRP composite bars. Struct. 2019;22:200–12.
• [9] Gao YJ, Zhou YZ, Zhou JN, et al. Blast responses of one-way sea-sand seawater concrete slabs reinforced with BFRP bars. Constr Build Mater. 2020;232:117254.
• [10] Zhou Q, He HG, Liu SF, et al. Evaluation of blast-resistant ability of shallow-buried reinforced concrete urban utility tunnel. Eng Fail Anal. 2021;119:105003.
• [11] Zhou Q, He HG, Liu SF, et al. Blast resistance evaluation of urban utility tunnel reinforced with BFRP bars. Def Technol. 2020. https://doi.org/10.1016/j.dt.2020.03.015.
• [12] Zhou YZ, Liu SF, Feng J, et al. Improved finite difference analysis of dynamic responses of concrete members reinforced with FRP bars under explosion. Compos Struct. 2019;230:111518.
• [13] Zhang X, Wang P, Jiang MR, et al. CFRP strengthening reinforced concrete arches: strengthening methods and experimental studies. Compos Struct. 2015;131:852–67.
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• [15] Xie W, Jiang MR, Chen HL, et al. Experimental behaviors of CFRP cloth strengthened buried arch structure subjected to sub-surface localized explosion. Compos Struct. 2014;116:562–70.
• [16] Chen HL, Zhou JN, Fan HL, et al. Dynamic responses of buried arch structure subjected to subsurface localized impulsive loading: experimental study. Int J Impact Eng. 2014;65:89–101.
• [17] Chen HL, Xia ZC, Zhou JN, et al. Dynamic responses of underground arch structures subjected to conventional blast loads: curvature effects. Arch Civil Mech Eng. 2013;13(3):322–33.
• [18] Chen HL, Jin FN, Fan HL. Elastic responses of underground circular arches considering dynamic soil-structure interaction: a theoretical analysis. Acta Mech Sin. 2013;29:110–22.
• [19] Wang HH, Chen HL, Wang P, et al. Blast responses and damage evaluation of CFRP tubular arches. Constr Build Mater. 2019;196:233–44.
• [20] Wang P, Chen HL, Zhou JN, et al. Failure mechanisms of CFRP-wrapped protective arches under static and blast loadings: experimental research. Compos Struct. 2018;198:1–10.
• [21] Iqbal N, Sharma PK, Kumar D, et al. Protective polyurea coatings for enhanced blast survivability of concrete. Constr Build Mater. 2018;175:682–90.
• [22] Ha JH, Yi NH, Choi JK, et al. Experimental study on hybrid CFRP-PU strengthening effect on RC panels under blast loading. Compos Struct. 2011;93:2070–82.
• [23] Wang P. Performances of carbon fiber reinforced polymer strengthened concrete arch structure (Dissertation). Nanjing: Army Engineering University of PLA. 2018.

Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2021)

Identyfikatory

DOI

10.1007/s43452-021-00182-x