A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Analytical prediction of transfer length in prestressed self-consolidating concrete girders using pull-out test results
Abstract While self-consolidating concrete (SCC) is comparable to conventional concrete (CC) in terms of strength, the comparability of SCC’s bond to steel is less well-defined. A keen understanding of SCC’s bond strength is essential to advance SCC within the prestressed concrete industry. This study presents an analytical method for predicting the transfer length of steel strands in prestressed girders using pull-out test results. The experimental data from a series of 56 pull-out tests is utilized to derive bond stress–slip relationships for 12.7mm steel strands embedded in SCC and CC. Modification factors are used to correlate pullout bond stresses to transfer bond stresses in prestressed members, and the modified relationships are integrated in three-dimensional finite element models to predict transfer lengths in prestressed SCC girders. The analytical predictions correlate well with experimental results and transfer length requirements of current US design codes.
Analytical prediction of transfer length in prestressed self-consolidating concrete girders using pull-out test results
Abstract While self-consolidating concrete (SCC) is comparable to conventional concrete (CC) in terms of strength, the comparability of SCC’s bond to steel is less well-defined. A keen understanding of SCC’s bond strength is essential to advance SCC within the prestressed concrete industry. This study presents an analytical method for predicting the transfer length of steel strands in prestressed girders using pull-out test results. The experimental data from a series of 56 pull-out tests is utilized to derive bond stress–slip relationships for 12.7mm steel strands embedded in SCC and CC. Modification factors are used to correlate pullout bond stresses to transfer bond stresses in prestressed members, and the modified relationships are integrated in three-dimensional finite element models to predict transfer lengths in prestressed SCC girders. The analytical predictions correlate well with experimental results and transfer length requirements of current US design codes.
Analytical prediction of transfer length in prestressed self-consolidating concrete girders using pull-out test results
Pozolo, Andrew (author) / Andrawes, Bassem (author)
Construction and Building Materials ; 25 ; 1026-1036
2010-06-19
11 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2011
Transfer Length in Prestressed Self-Consolidating Concrete Box and I-Girders.
| Online Contents | 2012
Transfer Length in Prestressed Self-Consolidating Concrete Box and I-Girders
| Online Contents | 2011