A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Shear strength of self-compacting concrete dry joints subjected to combined axial, bending and shear forces in precast concrete segmental bridges
[EN] Castellated dry joints between segmental elements represent zones of discontinuity that affect the behaviour of precast concrete segmental bridges (PCSBs). These joints must be capable of transmitting combined axial, bending and shear forces. Under service conditions, the joints in PCSBs are designed to be closed, but can be allowed to be open under failure conditions. Experimental and numerical dry joint studies have focused mainly on the behaviour of dry joints subjected to direct shear with different confinement levels. However, the number of studies and tests with castellated dry joints under axial, bending and shear forces is very limited. Although self-compacting concrete (SCC) use is becoming increasingly common in precast concrete, shear resistance behaviour significantly differs between elements made of conventional vibrated concrete (CC) and SCC. No experimental tests of castellated dry joints made of normal-strength self-compacting concrete (NS-SCC) have been found. This work presents an experimental programme of 24 tests to understand the shear transfer mechanism through NS-SCC single-keyed and multi-keyed dry joints subjected to combined axial, bending and shear forces. In this work, a new test for push-off dry joint specimens subjected to combined shear and axial forces with or without eccentricity was designed. Significant differences were observed between closed and open joints regarding cracking patterns, joint kinematics, resistance mechanisms and failure mode. The experimental test results were compared to the provisions from AASHTO and Fouré. The analysed expressions generally overestimated closed and open joints¿ shear capacity. ; The authors would like to thank the financial support provided by Grants: PID2021 126397OB-I00 funded by MCIN/AEI/10.13039/501100011033 and by ERDF A way of making Europe ; RTI2018 099091-B-C21-AR by MCIN/AEI/10.13039/501100011033 and by ERDF A way of making Europe and TED2021 129358B-I00 funded by MCIN/AEI/ 10.13039/501100011033 and by the European Union ...
Shear strength of self-compacting concrete dry joints subjected to combined axial, bending and shear forces in precast concrete segmental bridges
[EN] Castellated dry joints between segmental elements represent zones of discontinuity that affect the behaviour of precast concrete segmental bridges (PCSBs). These joints must be capable of transmitting combined axial, bending and shear forces. Under service conditions, the joints in PCSBs are designed to be closed, but can be allowed to be open under failure conditions. Experimental and numerical dry joint studies have focused mainly on the behaviour of dry joints subjected to direct shear with different confinement levels. However, the number of studies and tests with castellated dry joints under axial, bending and shear forces is very limited. Although self-compacting concrete (SCC) use is becoming increasingly common in precast concrete, shear resistance behaviour significantly differs between elements made of conventional vibrated concrete (CC) and SCC. No experimental tests of castellated dry joints made of normal-strength self-compacting concrete (NS-SCC) have been found. This work presents an experimental programme of 24 tests to understand the shear transfer mechanism through NS-SCC single-keyed and multi-keyed dry joints subjected to combined axial, bending and shear forces. In this work, a new test for push-off dry joint specimens subjected to combined shear and axial forces with or without eccentricity was designed. Significant differences were observed between closed and open joints regarding cracking patterns, joint kinematics, resistance mechanisms and failure mode. The experimental test results were compared to the provisions from AASHTO and Fouré. The analysed expressions generally overestimated closed and open joints¿ shear capacity. ; The authors would like to thank the financial support provided by Grants: PID2021 126397OB-I00 funded by MCIN/AEI/10.13039/501100011033 and by ERDF A way of making Europe ; RTI2018 099091-B-C21-AR by MCIN/AEI/10.13039/501100011033 and by ERDF A way of making Europe and TED2021 129358B-I00 funded by MCIN/AEI/ 10.13039/501100011033 and by the European Union ...
Shear strength of self-compacting concrete dry joints subjected to combined axial, bending and shear forces in precast concrete segmental bridges
Traver-Abella, Celia (author) / Bonet Senach, José Luís (author) / Miguel Sosa, Pedro (author) / Fernández Prada, Miguel Ángel (author) / Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos - Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports / AGENCIA ESTATAL DE INVESTIGACION / European Regional Development Fund / MINISTERIO DE CIENCIA E INNOVACION / Universitat Politècnica de València
2024-03-01
doi:10.1016/j.engstruct.2024.117495
Article (Journal)
Electronic Resource
English
Shear Strength of Joints in Precast Concrete Segmental Bridges
| Online Contents | 2005
SHEAR STRENGTH OF JOINTS IN PRECAST CONCRETE SEGMENTAL BRIDGES
| British Library Conference Proceedings | 2003
Discussion - Shear Strength of Joints in Precast Concrete Segmental Bridges.
| Online Contents | 2005