A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Available Tests to evaluate Residual Prestressing Forces in Concrete Bridges
The reduction of the structural capacity and eventual collapse of existing concrete bridges is often related to the loss of the initial prestressing forces. This loss can be associated to immediate or time dependent factors such as elastic shortening, creep, relaxation, loading, and cracking, among others. In addition, environmental factors can lead to corrosion of the strands with the subsequent reduction of their area, loss of bond with the concrete and additional cracking which in turn will influence the value of the residual prestress force and the bridge capacity. Therefore, the evaluation of such losses is critical in the decision-making process of defining a financial and environmental cost optimized intervention strategies (e.g., strengthening or replacement). In this paper, a detailed literature review regarding destructive and non-destructive methods for measuring the residual force in prestressed concrete bridges is carried out and used to develop a database of existing experimental tests. ; ISBN for host publication: 978-3-85748-181-9
Available Tests to evaluate Residual Prestressing Forces in Concrete Bridges
The reduction of the structural capacity and eventual collapse of existing concrete bridges is often related to the loss of the initial prestressing forces. This loss can be associated to immediate or time dependent factors such as elastic shortening, creep, relaxation, loading, and cracking, among others. In addition, environmental factors can lead to corrosion of the strands with the subsequent reduction of their area, loss of bond with the concrete and additional cracking which in turn will influence the value of the residual prestress force and the bridge capacity. Therefore, the evaluation of such losses is critical in the decision-making process of defining a financial and environmental cost optimized intervention strategies (e.g., strengthening or replacement). In this paper, a detailed literature review regarding destructive and non-destructive methods for measuring the residual force in prestressed concrete bridges is carried out and used to develop a database of existing experimental tests. ; ISBN for host publication: 978-3-85748-181-9
Available Tests to evaluate Residual Prestressing Forces in Concrete Bridges
Agredo Chavez, Angelica Maria (author) / Gonzalez, Jaime (author) / Sas, Gabriel (author) / Elfgren, Lennart (author) / Bianchi, Silvia (author) / Biondini, Fabio (author) / Kukay, Brian (author)
2022-01-01
Conference paper
Electronic Resource
English
Partial prestressing in concrete bridges
| TIBKAT | 1984
CONSTRUCTION METHODS OF PRESTRESSING CONCRETE BRIDGES
| British Library Conference Proceedings | 1963
Upgrade of Concrete Bridges by Adaptive Prestressing
| British Library Conference Proceedings | 2013
Corrosion protection of prestressing systems in concrete bridges
| TIBKAT | 1989