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Basalt fibre continuous reinforcement composite pavement reinforcement design based on finite element model

Yuhu Luo

Yuhu Luo

School of Civil Engineering, Chongqing Jiaotong UniversityChina
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Luo, Yuhu
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Hafnida Hasan

Hafnida Hasan

Applied Science UniversityAl Eker, Kingdom of Bahrain
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Hasan, Hafnida
  
15. Dez. 2021
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Online veröffentlicht: 15. Dez. 2021
Seitenbereich: 581 - 590
Eingereicht: 16. Juni 2021
Akzeptiert: 24. Sept. 2021
DOI: https://doi.org/10.2478/amns.2021.1.00080
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© 2021 Yuhu Luo et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Fig. 1

Bilinear shear stress-slip relationship between CRC layer and base layer.
Bilinear shear stress-slip relationship between CRC layer and base layer.

Fig. 2

Bond-slip relationship between BFRP tendons and concrete. BFRP, basalt fibre.
Bond-slip relationship between BFRP tendons and concrete. BFRP, basalt fibre.

Fig. 3

Schematic diagram of the analytical analysis model.
Schematic diagram of the analytical analysis model.

Fig. 4

Base layer + CRC layer model and meshing.
Base layer + CRC layer model and meshing.

Fig. 5

The effect of BFRP bar elastic modulus on cracks. BFRP, basalt fibre. (A) The influence of the elastic modulus of BFRP bars on the crack width. (B) The influence of the elastic modulus of BFRP bars on the crack spacing. (C) The influence of the elastic modulus of BFRP tendons on the control stress.
The effect of BFRP bar elastic modulus on cracks. BFRP, basalt fibre. (A) The influence of the elastic modulus of BFRP bars on the crack width. (B) The influence of the elastic modulus of BFRP bars on the crack spacing. (C) The influence of the elastic modulus of BFRP tendons on the control stress.

Fig. 6

The effect of the bond stiffness of BFRP bars on the crack width. BFRP, basalt fibre. (A) The effect of BFRP bar bonding stiffness on crack width. (B) The effect of BFRP bar bonding stiffness on crack spacing. (C) The effect of BFRP bar bending stiffness on the control stress.
The effect of the bond stiffness of BFRP bars on the crack width. BFRP, basalt fibre. (A) The effect of BFRP bar bonding stiffness on crack width. (B) The effect of BFRP bar bonding stiffness on crack spacing. (C) The effect of BFRP bar bending stiffness on the control stress.

Fig. 7

Variation curve of crack width with BFRP reinforcement ratio. BFRP, basalt fibre. (A) The influence of the reinforcement ratio on the crack width. (B) The influence of the reinforcement ratio on the crack spacing. (C) The influence of the reinforcement ratio on the control stress.
Variation curve of crack width with BFRP reinforcement ratio. BFRP, basalt fibre. (A) The influence of the reinforcement ratio on the crack width. (B) The influence of the reinforcement ratio on the crack spacing. (C) The influence of the reinforcement ratio on the control stress.

Comparison of analytical method and finite element results

Method w/mm /MPaσs−max /MPaσc−max
Analytical method ( = 0σsh) 0.83 171 2.01 < 2.54
Analytical method ( = 1σsh0−5) 1.1 229 2.69 > 2.54
Finite element ( = 0σsh) 0.88 167 2.14 < 2.54

Material parameters of finite element simulation

Material H/cm E/Pa α/°C ν
Concrete 28 2.7 × 1010 10−5 0.15
BFRP rib 1.8 4 × 1010 9 ×10−6 0.3
Grassroots 20 1.3 × 103 _ 0.25

Comparative analysis of BFRP reinforcement schemes

ds/mm Ls/cm ρ/% w/mm L/m /MPa
1σs−max4 12 0.46 1.18 2.61 275
16 16 0.45 1.28 2.81 277
12 12 0.34 1.43 3.16 362
14 16 0.34 1.5 3.3 350
16 20 0.36 1.53 3.35 333
Sprache:
Englisch
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Fachgebiete der Zeitschrift:
Biologie, Biologie, andere, Mathematik, Angewandte Mathematik, Mathematik, Allgemeines, Physik, Physik, andere
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