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Title: | Kinematics-based model for complete behavior of RC dapped-end connections failing along a re-entrant corner crack | Authors: | RAJAPAKSE MUDIYANSELAGE, Chathura DEGEE, Herve Mihaylov, Boyan |
Issue Date: | 2022 | Publisher: | IABSE | Source: | Proceedingsbook of the IABSE Symposium Prague 2022, IABSE, -1642 | Abstract: | 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 postpeak behaviour. | Keywords: | reinforced concrete dapped-end connections;kinematics-based model;re-entrant corner crack;complete behaviour | Document URI: | http://hdl.handle.net/1942/39295 | ISBN: | 978-3-85748-181-9 | Category: | C1 | Type: | Proceedings Paper |
Appears in Collections: | Research publications |
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