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

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

Architecture, Civil Engineering, Environment
Volume 12 (2019): Issue 3 (September 2019)
By: Vadzim PARKHATS and  Rafał KRZYWOŃ  
Open Access
|Oct 2019

Figures & Tables

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 beamThe I-shaped beam
The span L (m)1521
The load q (kN/m)925
The perimeter of the member in contact with the atmosphere (m)2.24.76
DOI: https://doi.org/10.21307/acee-2019-040 | Journal eISSN: 2720-6947 | Journal ISSN: 1899-0142
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Language: English
Page range: 105 - 112
Submitted on: Apr 23, 2019
Accepted on: Jun 27, 2019
Published on: Oct 18, 2019
Published by: Silesian University of Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year
Keywords:
Creep,
Prestress losses,
Pretensioned concrete member,
Relaxation,
Shrinkage,
Stress in prestressing reinforcement,
Tendons
Related subjects:
Architecture and design,
Architecture,
Architects, buildings

© 2019 Vadzim PARKHATS, Rafał KRZYWOŃ, published by Silesian University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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