THE EFFECTS OF CONNECTIONS IN DECKED BULB-TEE BRIDGES
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Published:2005
Z Ma, S Chaudhury, 2005. "THE EFFECTS OF CONNECTIONS IN DECKED BULB-TEE BRIDGES", Concrete for Transportation Infrastructure: Proceedings of the International Conference held at the University of Dundee, Scotland, UK on 5–7 July 2005, Ravindra K. Dhir, Michael J. McCarthy, Sinan Caliskan
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Using the calibrated 3D FE models, parametric studies are performed to study the effect of shear connectors and intermediate diaphragms. It has been found that: (1) In all cases studied, the live load distribution factor (DF) for a single-lane loaded bridge is smaller than one for a double-lane loaded bridge; (2) Connector forces caused by wheel loads are not uniform along the longitudinal joint. Adding intermediate diaphragms tends to reduce the difference among horizontal shear forces in connectors; (3) The maximum horizontal shear force increases with the increase of the connector spacing. Intermediate diaphragms reduce the maximum horizontal shear force in connectors; (4) The maximum vertical shear force and in-plane normal tensile-force in connectors do not necessarily increase with the increase of the connector spacing; and (5) The summation of connector forces in each direction along the longitudinal joint remains constant irrespective of the number of connectors in the joint.
INTRODUCTION
3D FINITE ELEMENT MODELLING AND CALIBRATION
PARAMETRIC STUDIES ON CONNECTIONS
CONCLUSIONS
ACKNOWLEDGEMENTS
REFERENCES
