Kinematics-based model for complete behavior of RC dapped-end connections failing along a re-entrant corner crack
|
Bibliografische Angaben
Autor(en): |
Chathura Rajapakse
(University of Liège and Hasselt University, Belgium)
Hervé Degée (Hasselt University, Belgium) Boyan Mihaylov (University of Liège, Belgium) |
||||
---|---|---|---|---|---|
Medium: | Tagungsbeitrag | ||||
Sprache(n): | Englisch | ||||
Tagung: | IABSE Symposium: Challenges for Existing and Oncoming Structures, Prague, Czech Republic, 25-27 May 2022 | ||||
Veröffentlicht in: | IABSE Symposium Prague 2022 | ||||
|
|||||
Seite(n): | 1635-1642 | ||||
Anzahl der Seiten (im PDF): | 8 | ||||
DOI: | 10.2749/prague.2022.1635 | ||||
Abstrakt: |
Reinforced concrete dapped-end connections, which are common in existing Gerber-beam bridges, typically feature an inclined corner crack at service loads due to the high stress concentrations in the re-entrant corner. These cracks introduce corrosion issues and increase the stresses in the dapped-end reinforcement, which in the event of further deterioration and increased loading may lead to yielding and failure of the connection. This paper proposes a kinematics-based model for the complete behaviour of such connections which predicts the opening of the cracks based on first principles: compatibility, equilibrium and constitutive relationships. The model stems from an earlier kinematics-based approach for the capacity prediction of dapped-end connections failing along re-entrant corner cracks, and extends it to describe the complete pre-peak, peak and post- peak behaviour. |
||||
Copyright: | © 2022 International Association for Bridge and Structural Engineering (IABSE) | ||||
Lizenz: | Die Urheberrechte (Copyright) für dieses Werk sind rechtlich geschützt. Es darf nicht ohne die Zustimmung des Autors/der Autorin oder Rechteinhabers/-in weiter benutzt werden. |