United States Department of Transportation
i
Design and evaluation of a single-span bridge using ultra-high performance concrete.
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2009-09-01
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[PDF-2.79 MB]
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Alternative Title:Design and evaluation of a single-span bridge using UHPC
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Edition:Final report.
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Abstract:Research presented herein describes an application of a newly developed material called Ultra-High Performance Concrete (UHPC) to a
single-span bridge. The two primary objectives of this research were to develop a shear design procedure for possible code adoption
and to provide a performance evaluation to ensure the viability of the first UHPC bridge in the United States. Two other secondary
objectives included defining of material properties and understanding of flexural behavior of a UHPC bridge girder. In order to obtain
information in these areas, several tests were carried out including material testing, large-scale laboratory flexure testing, large-scale
laboratory shear testing, large-scale laboratory flexure-shear testing, small-scale laboratory shear testing, and field testing of a UHPC
bridge.
Experimental and analytical results of the described tests are presented. Analytical models to understand the flexure and shear behavior
of UHPC members were developed using iterative computer based procedures. Previous research is referenced explaining a simplified
flexural design procedure and a simplified pure shear design procedure. This work describes a shear design procedure based on the
Modified Compression Field Theory (MCFT) which can be used in the design of UHPC members. Conclusions are provided regarding
the viability of the UHPC bridge and recommendations are made for future research.
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