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Simplified shear design method for concrete beams strengthened with fiber reinforced polymer sheets

Deniaud, Christophe / Cheng, J.J. Roger

This paper presents a simplified shear design method for reinforced concrete beams strengthened externally with fiber reinforced polymer (FRP) sheets. This design method combines both the strip method and the shear friction approach. From this study, the following conclusions can be drawn: The proposed design formulation can conservatively predict the experimental test results. The steps in calculating the strength of the beam are simple and easy to use without any iteration. The maximum bond strain and the remaining bond area at the time of FRP debonding failure were presented using two simple equations from the regression analyses. The strip method used to evaluate the FRP contribution can also be adapted for other FRP sheet anchorage configurations. Despite the simplicity of the method, the proposed method well describes the interaction between the concrete, the stirrups, and the FRP sheets.

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Simplified shear design method for concrete beams strengthened with fiber reinforced polymer sheets

Deniaud, Christophe / Cheng, J.J. Roger

This paper presents a simplified shear design method for reinforced concrete beams strengthened externally with fiber reinforced polymer (FRP) sheets. This design method combines both the strip method and the shear friction approach. From this study, the following conclusions can be drawn: The proposed design formulation can conservatively predict the experimental test results. The steps in calculating the strength of the beam are simple and easy to use without any iteration. The maximum bond strain and the remaining bond area at the time of FRP debonding failure were presented using two simple equations from the regression analyses. The strip method used to evaluate the FRP contribution can also be adapted for other FRP sheet anchorage configurations. Despite the simplicity of the method, the proposed method well describes the interaction between the concrete, the stirrups, and the FRP sheets.

Simplified shear design method for concrete beams strengthened with fiber reinforced polymer sheets

Deniaud, Christophe / Cheng, J.J. Roger

This paper presents a simplified shear design method for reinforced concrete beams strengthened externally with fiber reinforced polymer (FRP) sheets. This design method combines both the strip method and the shear friction approach. From this study, the following conclusions can be drawn: The proposed design formulation can conservatively predict the experimental test results. The steps in calculating the strength of the beam are simple and easy to use without any iteration. The maximum bond strain and the remaining bond area at the time of FRP debonding failure were presented using two simple equations from the regression analyses. The strip method used to evaluate the FRP contribution can also be adapted for other FRP sheet anchorage configurations. Despite the simplicity of the method, the proposed method well describes the interaction between the concrete, the stirrups, and the FRP sheets.

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Title:

Simplified shear design method for concrete beams strengthened with fiber reinforced polymer sheets

Additional title:

Vereinfachte Scherungskonstruktionsmethode für mit faserverstärkten Kunststoffplatten verstärkten Betonträgern

Contributors:

Deniaud, Christophe (author) / Cheng, J.J. Roger (author)

Published in:

Journal of Composites for Construction ; 8 ; 425-433

Publication date:

2004

Size:

9 Seiten, 7 Bilder, 3 Tabellen, 33 Quellen

ISSN:

DOI:

https://doi.org/10.1061/(ASCE)1090-0268(2004)8:5(425)

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Träger (Bauwesen) , Beton , Verstärkung (Festigkeit) , faserverstärkter Kunststoff , Platte (Bauteil) , Vereinfachung , Scherfestigkeit , Reibung , Konstruktionsmethodik , Retrofitting , mathematische Gleichung , Rissverlauf , Band (Werkstoffkunde) , Berechnungsverfahren

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