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Analysis of Prestressing in Notched Concrete Beams
There are great uncertainties when addressing the assessment of prestressed concrete members (PCM), and in particular of the effective prestressing force. One of the most recent and promising methods to assess the actual prestressing force is the Isolated Concrete Block Method, which is based on the local decompression of concrete by introducing surface notches. The motivation of this work is to study the effect of this decompression and its scope is focused on analyzing the concrete decompression by means of numerical modelling, as a preliminary step of a subsequent experimental program. The methodology is based on the response of a tailor-made finite element model that reproduces the effect of the notches depending on key parameters such as notch depth, prestressing force, distance between notches, measurement base length, cross-section dimensions or tendon eccentricity. The results obtained show the level of decompression after sawing the concrete depending on the parameters considered, which will be used to select appropriate instrumentation for further experimental testing and verification.
Analysis of Prestressing in Notched Concrete Beams
There are great uncertainties when addressing the assessment of prestressed concrete members (PCM), and in particular of the effective prestressing force. One of the most recent and promising methods to assess the actual prestressing force is the Isolated Concrete Block Method, which is based on the local decompression of concrete by introducing surface notches. The motivation of this work is to study the effect of this decompression and its scope is focused on analyzing the concrete decompression by means of numerical modelling, as a preliminary step of a subsequent experimental program. The methodology is based on the response of a tailor-made finite element model that reproduces the effect of the notches depending on key parameters such as notch depth, prestressing force, distance between notches, measurement base length, cross-section dimensions or tendon eccentricity. The results obtained show the level of decompression after sawing the concrete depending on the parameters considered, which will be used to select appropriate instrumentation for further experimental testing and verification.
Analysis of Prestressing in Notched Concrete Beams
Lecture Notes in Civil Engineering
Ilki, Alper (editor) / Çavunt, Derya (editor) / Çavunt, Yavuz Selim (editor) / Bauset-Tortonda, I. (author) / Mateu-Sánchez, J. A. (author) / Giménez-Carbó, E. (author) / Castro-Bugallo, M. C. (author) / Serna, P. (author) / Martí-Vargas, J. R. (author) / Navarro-Gregori, J. (author)
International Symposium of the International Federation for Structural Concrete ; 2023 ; Istanbul, Türkiye
2023-06-01
8 pages
Article/Chapter (Book)
Electronic Resource
English
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