Sökning: onr:"swepub:oai:DiVA.org:ltu-92198" >
Available Tests to ...
Available Tests to evaluate Residual Prestressing Forces in Concrete Bridges
-
- Agredo Chavez, Angelica Maria (författare)
- Luleå tekniska universitet,Byggkonstruktion och brand
-
- Gonzalez, Jaime (författare)
- Luleå tekniska universitet,Byggkonstruktion och brand
-
- Sas, Gabriel (författare)
- Luleå tekniska universitet,Byggkonstruktion och brand
-
visa fler...
-
- Elfgren, Lennart, Senior Professor, 1942- (författare)
- Luleå tekniska universitet,Byggkonstruktion och brand
-
- Bianchi, Silvia (författare)
- Politecnico di Milano, Milan, Italy
-
- Biondini, Fabio (författare)
- Politecnico di Milano, Milan, Italy
-
- Kukay, Brian (författare)
- Montana Technological University, Montana, United States
-
visa färre...
-
(creator_code:org_t)
- Zurich, Switzerland : International Association for Bridge and Structural Engineering, 2022
- 2022
- Engelska.
-
Ingår i: IABSE Symposium Prague 2022: Challenges for Existing and Oncoming Structures - Report, International Association for Bridge and Structural Engineering. - Zurich, Switzerland : International Association for Bridge and Structural Engineering. ; , s. 1123-1131
- Relaterad länk:
-
https://ltu.diva-por... (primary) (Raw object)
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.2...
-
visa färre...
Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Infrastrukturteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Infrastructure Engineering (hsv//eng)
Nyckelord
- assessment of PC bridges
- concrete bridges
- evaluation prestressing force
- flexural bearing capacity
- in situ tests
- methods residual stress
- prestressing losses
- residual prestressing forces
- Byggkonstruktion
- Structural Engineering
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)