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EVALUATION OF TIME DEPENDENT PRESTRESS LOSSES IN PRETENSIONED CONCRETE MEMBER WITH TOP AND BOTTOM TENDONS

Vadzim PARKHATS

Vadzim PARKHATS

Silesian University of Technology, Faculty of Civil Engineering, Department of Structural EngineeringGliwice, Poland
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PARKHATS, Vadzim
 et 
Rafał KRZYWOŃ

Rafał KRZYWOŃ

Silesian University of Technology, Faculty of Civil Engineering, Department of Structural EngineeringGliwice, Poland
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KRZYWOŃ, Rafał
  
18 oct. 2019
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Catégorie d'article: research-article
Publié en ligne: 18 oct. 2019
Pages: 105 - 112
Reçu: 23 avr. 2019
Accepté: 27 juin 2019
DOI: https://doi.org/10.21307/acee-2019-040
Mots clés
© 2019 Vadzim PARKHATS et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Figure 1.

Cross-sections of pretensioned concrete members: a) a rectangular beam, b) an I-shaped beam
Cross-sections of pretensioned concrete members: a) a rectangular beam, b) an I-shaped beam

Figure 2.

Influence of the area of the cross-sections of the bottom tendons Ap,bot on the variations of stress in the top tendons (the dashed line), the bottom tendons (the continuous line with crosses), and the resultant tendon (the continuous line) for: a) the rectangular beam, b) the I-shaped beam.
Influence of the area of the cross-sections of the bottom tendons Ap,bot on the variations of stress in the top tendons (the dashed line), the bottom tendons (the continuous line with crosses), and the resultant tendon (the continuous line) for: a) the rectangular beam, b) the I-shaped beam.

Figure 3.

Influence of the quasi-permanent load q on the variations of stress in the top tendons (the dashed line), the bottom tendons (the continuous line with crosses), and the resultant tendon (the continuous line) for: a) the rectangular beam, b) the I-shaped beam. qG is the member weight.
Influence of the quasi-permanent load q on the variations of stress in the top tendons (the dashed line), the bottom tendons (the continuous line with crosses), and the resultant tendon (the continuous line) for: a) the rectangular beam, b) the I-shaped beam. qG is the member weight.

Figure 4.

Influence of the depth of the concrete cross-section h on the variations of stress in the top tendons (the dashed line), the bottom tendons (the continuous line with crosses), and the resultant tendon (the continuous line) for: a) the rectangular beam, b) the I-shaped beam
Influence of the depth of the concrete cross-section h on the variations of stress in the top tendons (the dashed line), the bottom tendons (the continuous line with crosses), and the resultant tendon (the continuous line) for: a) the rectangular beam, b) the I-shaped beam

Parameters of the analysed members

  The rectangular beam The I-shaped beam
The span L (m) 15 21
The load q (kN/m) 9 25
The perimeter of the member in contact with the atmosphere (m) 2.2 4.76
Langue:
Anglais
Périodicité:
4 fois par an
Sujets de la revue:
Architecture et design, Architecture, Architectes, bâtiments
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