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Pullout Resistance of Fiberglass-Reinforced Plastic Reinforcement Embedded in Cohesionless Soils
https://orcid.org/http://orcid.org/0000-0002-0638-7993
The fiberglass-reinforced plastic (FRP) reinforcement was introduced as an alternative reinforcing material, which is composed of a flat strip section as a longitudinal member and angle section as transverse members. The laboratory pullout resistance of FRP reinforcement embedded in cohesionless soil was studied. The factors investigated in this study included number of transverse members (n) of the angle section, spacing between the transverse members (S), and normal stress (σn). The pullout friction (Pf) of the longitudinal member increased with increasing horizontal displacement, peaking at approximately 5 mm for all σn, then the Pf reduced with horizontal displacement. Skin friction angle was lower than the soil’s friction angle (ϕ), approximately 0.92 tan ϕ. The maximum pullout bearing resistance of a single equal angle FRP was estimated using a modified punching failure mechanism. Pullout bearing force of n > 1 could be determined as follows: (1) When the S/leg length of equal angle FRP (B) was 5.0, the interference factor (F) was equal to 1/n. (2) When S/B was 32, the F was equal to 1.0. The F value could be determined from the logarithm of S/B.
Pullout Resistance of Fiberglass-Reinforced Plastic Reinforcement Embedded in Cohesionless Soils
https://orcid.org/http://orcid.org/0000-0002-0638-7993
The fiberglass-reinforced plastic (FRP) reinforcement was introduced as an alternative reinforcing material, which is composed of a flat strip section as a longitudinal member and angle section as transverse members. The laboratory pullout resistance of FRP reinforcement embedded in cohesionless soil was studied. The factors investigated in this study included number of transverse members (n) of the angle section, spacing between the transverse members (S), and normal stress (σn). The pullout friction (Pf) of the longitudinal member increased with increasing horizontal displacement, peaking at approximately 5 mm for all σn, then the Pf reduced with horizontal displacement. Skin friction angle was lower than the soil’s friction angle (ϕ), approximately 0.92 tan ϕ. The maximum pullout bearing resistance of a single equal angle FRP was estimated using a modified punching failure mechanism. Pullout bearing force of n > 1 could be determined as follows: (1) When the S/leg length of equal angle FRP (B) was 5.0, the interference factor (F) was equal to 1/n. (2) When S/B was 32, the F was equal to 1.0. The F value could be determined from the logarithm of S/B.
Pullout Resistance of Fiberglass-Reinforced Plastic Reinforcement Embedded in Cohesionless Soils
https://orcid.org/http://orcid.org/0000-0002-0638-7993
The fiberglass-reinforced plastic (FRP) reinforcement was introduced as an alternative reinforcing material, which is composed of a flat strip section as a longitudinal member and angle section as transverse members. The laboratory pullout resistance of FRP reinforcement embedded in cohesionless soil was studied. The factors investigated in this study included number of transverse members (n) of the angle section, spacing between the transverse members (S), and normal stress (σn). The pullout friction (Pf) of the longitudinal member increased with increasing horizontal displacement, peaking at approximately 5 mm for all σn, then the Pf reduced with horizontal displacement. Skin friction angle was lower than the soil’s friction angle (ϕ), approximately 0.92 tan ϕ. The maximum pullout bearing resistance of a single equal angle FRP was estimated using a modified punching failure mechanism. Pullout bearing force of n > 1 could be determined as follows: (1) When the S/leg length of equal angle FRP (B) was 5.0, the interference factor (F) was equal to 1/n. (2) When S/B was 32, the F was equal to 1.0. The F value could be determined from the logarithm of S/B.
Pullout Resistance of Fiberglass-Reinforced Plastic Reinforcement Embedded in Cohesionless Soils
Transp. Infrastruct. Geotech.
Yoosuk, Piyathida (author) / Suksiripattanapong, Cherdsak (author) / Thumrongvut, Jaksada (author) / Suebsuk, Jirayut (author) / Horpibulsuk, Suksun (author) / Chindaprasirt, Prinya (author)
2025-01-01
Article (Journal)
Electronic Resource
English
Pullout Resistance of Fiberglass-Reinforced Plastic Reinforcement Embedded in Cohesionless Soils
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