Numerical evaluation of blast resistance of RC slab strengthened with AFRP

被引：43

作者：

Kong, Xiangqing ^{[1
]}

Qi, Xuejian ^{[1
]}

Gu, Yihan ^{[1
]}

Lawan, Isah Abba ^{[1
]}

Qu, Yandong ^{[1
]}

机构：

[1] Liaoning Univ Technol, Sch Civil Engn, Jinzhou 121001, Peoples R China

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2018年 / 178卷

基金：

中国国家自然科学基金;

关键词：

Blast resistance; Reinforced concrete slabs; Aramid fiber reinforced plastic; Simulation analysis; REINFORCED-CONCRETE SLAB; COMPOSITES; PLATES; PANELS; LOADS; MODE;

D O I：

10.1016/j.conbuildmat.2018.05.081

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

In this study, in order to precisely evaluated the retrofitting effectiveness of the Aramid Fiber Reinforced Plastic (AFRP) sheet on the blast response of reinforced concrete (RC) slab, a refined non-linear finite element model is proposed for simulating of the structural response of RC slab strengthened with AFRP under blast loads. The complicated material models are applied in the simulation considering the high strain rate effects of the materials as well as the dynamic interfacial behavior between AFRP and concrete. Also, a appropriate erosion criterion technique is specially applied to capture the fracture and material separation process during the detonation of the explosive. At first, the numerical model of an actual laboratory sample of a conventional RC slab subjected to blast loads was simulated and verified using available experimental results. Then with the calibrated model, numerical simulations of RC slabs strengthened with AFRP to blast loadings are carried out. The numerical results of strengthened and non-strengthened RC slab (i.e., conventional slab) are compared to investigate the retrofitting effectiveness of AFRP on blast-resistant performance of RC slabs. In addition, a comprehensive investigation on the blast responses of FRP-strengthened RC slabs affected by these parameters, i.e. different AFRP layer, FRP type, strengthening mode, FRP bond strength and TNT mass, are also reported. (C) 2018 Elsevier Ltd. All rights reserved.

引用

页码：244 / 253

页数：10

共 35 条

[1]

[Anonymous], 2012, LS DYNA KEYW US MAN

[2]

[Anonymous], 1993, CEB FIP MODEL CODE 1

[3]

[Anonymous], P 9 N AM MAS C CLEMS

[4] Blast resistance of FRP composites and polymer strengthened concrete and masonry structures - A state-of-the-art review [J].

Buchan, P. A. ;

Chen, J. F. .

COMPOSITES PART B-ENGINEERING, 2007, 38 (5-6) :509-522

[5] Nonlinear transient analysis of rectangular composite laminated plates [J].

Chen, J ;

Dawe, DJ ;

Wang, S .

COMPOSITE STRUCTURES, 2000, 49 (02) :129-139

[6]

De LL, 2005, P INT S BOND BEH FRP, P495

[7] Behavior of GFRP retrofitted reinforced concrete slabs subjected to conventional explosive blast [J].

Guo, Zhanggen ;

Xu, Zhenwen ;

Chen, Chen ;

Zhang, Bing ;

Lehman, Dawn E. ;

Cao, Shuangyin .

MATERIALS AND STRUCTURES, 2017, 50 (06)

[8] Experimental study on hybrid CFRP-PU strengthening effect on RC panels under blast loading [J].

Ha, Ju-Hyung ;

Yi, Na-Hyun ;

Choi, Jong-Kwon ;

Kim, Jang-Ho Jay .

COMPOSITE STRUCTURES, 2011, 93 (08) :2070-2082

[9]

Hallquist J., 2012, LS DYNA KEYW US MAN, V1

[10] A numerical study on the axial crushing response of hybrid pultruded and ±45° braided tubes [J].

Han, Haipeng ;

Taheri, Farid ;

Pegg, Neil ;

Lu, You .

COMPOSITE STRUCTURES, 2007, 80 (02) :253-264

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