Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Seismic evaluation of frictional FRP piles in saturated sands using shaking table tests
https://orcid.org/0000-0002-5289-6262
Abstract This manuscript presents results of two shaking table tests that were used to characterize seismic performance of Fibre-Reinforced Polymers (FRP) pile groups in saturated sand. A laminar shear box with a dimension of 1.0 m × 1.0 m and a depth of 1.0 m was employed to contain the soil medium and allow the soil to respond in the same fashion as the free field. Two types of composite group piles (2 × 2) made of Carbon FRP (CFRP) and Glass FRP (GFRP) along with a series of Aluminum model piles were manufactured and embedded as frictional piles within the soil. The pile-soil models were subjected to acceleration time histories adopted from the 2010 Val-des-Bois Earthquake in Canada and the 1995 Kobe Earthquake. The foundation motions recorded along the model piles showed significantly higher levels of excitation compared to the accelerations recorded within the soil at the same level. This was attributed to strong interaction between the soil and the foundation, and higher flexural stiffness of the model piles. Pile material was also found to influence the seismic response of pile caps and its superstructure through kinematic soil-pile interaction and possible rocking motion. The aluminum pile cap experienced significantly higher acceleration response compared to the FRP piles. Among the FRP piles, GFRP piles were shown to provide slightly better performance and could be an appropriate alternative piling material for frictional traditional piles especially in liquefiable soils.
Highlights Shaking table tests were used to study seismic performance of model piles in cohesionless soils. Use of hollow Fiber Reinforced Polymer tubes as alternative pile foundations in liquefiable soils. Foundations made of glass Fiber Reinforced Polymer piles showed lower foundation input motion in liquefied soils.
Seismic evaluation of frictional FRP piles in saturated sands using shaking table tests
https://orcid.org/0000-0002-5289-6262
Abstract This manuscript presents results of two shaking table tests that were used to characterize seismic performance of Fibre-Reinforced Polymers (FRP) pile groups in saturated sand. A laminar shear box with a dimension of 1.0 m × 1.0 m and a depth of 1.0 m was employed to contain the soil medium and allow the soil to respond in the same fashion as the free field. Two types of composite group piles (2 × 2) made of Carbon FRP (CFRP) and Glass FRP (GFRP) along with a series of Aluminum model piles were manufactured and embedded as frictional piles within the soil. The pile-soil models were subjected to acceleration time histories adopted from the 2010 Val-des-Bois Earthquake in Canada and the 1995 Kobe Earthquake. The foundation motions recorded along the model piles showed significantly higher levels of excitation compared to the accelerations recorded within the soil at the same level. This was attributed to strong interaction between the soil and the foundation, and higher flexural stiffness of the model piles. Pile material was also found to influence the seismic response of pile caps and its superstructure through kinematic soil-pile interaction and possible rocking motion. The aluminum pile cap experienced significantly higher acceleration response compared to the FRP piles. Among the FRP piles, GFRP piles were shown to provide slightly better performance and could be an appropriate alternative piling material for frictional traditional piles especially in liquefiable soils.
Highlights Shaking table tests were used to study seismic performance of model piles in cohesionless soils. Use of hollow Fiber Reinforced Polymer tubes as alternative pile foundations in liquefiable soils. Foundations made of glass Fiber Reinforced Polymer piles showed lower foundation input motion in liquefied soils.
Seismic evaluation of frictional FRP piles in saturated sands using shaking table tests
https://orcid.org/0000-0002-5289-6262
Abstract This manuscript presents results of two shaking table tests that were used to characterize seismic performance of Fibre-Reinforced Polymers (FRP) pile groups in saturated sand. A laminar shear box with a dimension of 1.0 m × 1.0 m and a depth of 1.0 m was employed to contain the soil medium and allow the soil to respond in the same fashion as the free field. Two types of composite group piles (2 × 2) made of Carbon FRP (CFRP) and Glass FRP (GFRP) along with a series of Aluminum model piles were manufactured and embedded as frictional piles within the soil. The pile-soil models were subjected to acceleration time histories adopted from the 2010 Val-des-Bois Earthquake in Canada and the 1995 Kobe Earthquake. The foundation motions recorded along the model piles showed significantly higher levels of excitation compared to the accelerations recorded within the soil at the same level. This was attributed to strong interaction between the soil and the foundation, and higher flexural stiffness of the model piles. Pile material was also found to influence the seismic response of pile caps and its superstructure through kinematic soil-pile interaction and possible rocking motion. The aluminum pile cap experienced significantly higher acceleration response compared to the FRP piles. Among the FRP piles, GFRP piles were shown to provide slightly better performance and could be an appropriate alternative piling material for frictional traditional piles especially in liquefiable soils.
Highlights Shaking table tests were used to study seismic performance of model piles in cohesionless soils. Use of hollow Fiber Reinforced Polymer tubes as alternative pile foundations in liquefiable soils. Foundations made of glass Fiber Reinforced Polymer piles showed lower foundation input motion in liquefied soils.
Seismic evaluation of frictional FRP piles in saturated sands using shaking table tests
Hosseini, M.A. (Autor:in) / Rayhani, M.T. (Autor:in)
10.09.2022
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| NTIS | 1988
Shaking-Table Tests on Piles in Liquefying Sand
| British Library Conference Proceedings | 1994
Examining the seismic behaviour of partially saturated sand using centrifuge shaking table tests
| DOAJ | 2019