Shear Strength of a Lightweight Self-Consolidating Concrete Bridge Girder
Publication: Journal of Bridge Engineering
Volume 15, Issue 5
Abstract
Lightweight self-consolidating concrete (LWSCC) is advantageous in the bridge industry because members made with this material have a significantly lower self-weight, and in its fresh state, LWSCC has a low viscosity which eliminates the need for vibration during fabrication. A composite section was fabricated with a single precast bulb-tee LWSCC beam and a lightweight concrete cast-in-place deck. A simply supported test configuration was constructed with two point loads to quantify the web-shear strength of the girder. The experimental shear strength is compared to four analytical models from different AASHTO specifications. Based on the results of this limited study, the theoretical predictions for the web-shear strength of this girder were all conservative when compared to the experimentally measured failure strength. With these results in mind, further research is recommended on the use of LWSCC girders in the bridge industry to better understand the material properties, structural properties, and cost advantages.
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References
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 15 • Issue 5 • September 2010
Pages: 615 - 618
Copyright
© 2010 ASCE.
History
Received: Jan 27, 2009
Accepted: Dec 4, 2009
Published online: Dec 9, 2009
Published in print: Sep 2010
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