Nonlinear finite element modelling of prestressed concrete girders strengthened in shear with CFRP reinforcement

Michael Qapo; Samir Dirar; Andrew Chan

Nonlinear finite element modelling of prestressed concrete girders strengthened in shear with CFRP reinforcement

Michael Qapo, Samir Dirar, Andrew Chan

Civil Engineering

Research output: Contribution to conference (unpublished) › Paper › peer-review

Abstract

This paper presents a numerical investigation on the behaviour of prestressed concrete (PC) girders strengthened in shear with externally bonded carbon fiber reinforced polymer (CFRP) strips. A three-dimensional finite element model was developed and validated against published experimental results. The FE model was then used to carry out a parametric study to investigate the effect of concrete compressive strength and CFRP reinforcement ratio on the shear force capacity of PC girders. An increase of 48% in the shear force capacity was predicted when the concrete strength was increased from 25 MPa to 59 MPa. The increase in the CFRP reinforcement ratio from 0 to 2.45% resulted in 25% increase in the shear force capacity.

Original language	English
Number of pages	10
Publication status	Published - Feb 2014
Event	4th International fib Congress - Mumbai, India Duration: 10 Feb 2014 → 13 Feb 2014

Conference

Conference	4th International fib Congress
Country/Territory	India
City	Mumbai
Period	10/02/14 → 13/02/14

2 Article

Efficient shear retrofitting of reinforced concrete beams using prestressed deep embedded bars
Bhanugoban, M., Yapa, H. & Dirar, S., 1 Nov 2021, In: Engineering Structures. 246, 14 p., 113053.
Research output: Contribution to journal › Article › peer-review

Open Access
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Experimental and numerical studies on shear behaviour of macro-synthetic fibre reinforced prestressed concrete beams
Lakavath, C., Suriya Prakash, S. & Dirar, S., 12 Jul 2021, In: Construction and Building Materials. 291, 15 p., 123313.
Research output: Contribution to journal › Article › peer-review

Open Access
File
139 Downloads (Pure)

Cite this

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title = "Nonlinear finite element modelling of prestressed concrete girders strengthened in shear with CFRP reinforcement",

abstract = "This paper presents a numerical investigation on the behaviour of prestressed concrete (PC) girders strengthened in shear with externally bonded carbon fiber reinforced polymer (CFRP) strips. A three-dimensional finite element model was developed and validated against published experimental results. The FE model was then used to carry out a parametric study to investigate the effect of concrete compressive strength and CFRP reinforcement ratio on the shear force capacity of PC girders. An increase of 48% in the shear force capacity was predicted when the concrete strength was increased from 25 MPa to 59 MPa. The increase in the CFRP reinforcement ratio from 0 to 2.45% resulted in 25% increase in the shear force capacity. ",

author = "Michael Qapo and Samir Dirar and Andrew Chan",

year = "2014",

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language = "English",

note = "4th International fib Congress ; Conference date: 10-02-2014 Through 13-02-2014",

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T1 - Nonlinear finite element modelling of prestressed concrete girders strengthened in shear with CFRP reinforcement

AU - Qapo, Michael

AU - Dirar, Samir

AU - Chan, Andrew

PY - 2014/2

Y1 - 2014/2

N2 - This paper presents a numerical investigation on the behaviour of prestressed concrete (PC) girders strengthened in shear with externally bonded carbon fiber reinforced polymer (CFRP) strips. A three-dimensional finite element model was developed and validated against published experimental results. The FE model was then used to carry out a parametric study to investigate the effect of concrete compressive strength and CFRP reinforcement ratio on the shear force capacity of PC girders. An increase of 48% in the shear force capacity was predicted when the concrete strength was increased from 25 MPa to 59 MPa. The increase in the CFRP reinforcement ratio from 0 to 2.45% resulted in 25% increase in the shear force capacity.

AB - This paper presents a numerical investigation on the behaviour of prestressed concrete (PC) girders strengthened in shear with externally bonded carbon fiber reinforced polymer (CFRP) strips. A three-dimensional finite element model was developed and validated against published experimental results. The FE model was then used to carry out a parametric study to investigate the effect of concrete compressive strength and CFRP reinforcement ratio on the shear force capacity of PC girders. An increase of 48% in the shear force capacity was predicted when the concrete strength was increased from 25 MPa to 59 MPa. The increase in the CFRP reinforcement ratio from 0 to 2.45% resulted in 25% increase in the shear force capacity.

M3 - Paper

T2 - 4th International fib Congress

Y2 - 10 February 2014 through 13 February 2014

ER -

Nonlinear finite element modelling of prestressed concrete girders strengthened in shear with CFRP reinforcement

Abstract

Conference

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Research output

Efficient shear retrofitting of reinforced concrete beams using prestressed deep embedded bars

Experimental and numerical studies on shear behaviour of macro-synthetic fibre reinforced prestressed concrete beams

Cite this