Construction of an Optimized UHPC Vechicle Bridge


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Title: Construction of an Optimized UHPC Vechicle Bridge

Author(s): B.A. Graybeal and J.L. Hartmann

Publication: Special Publication

Volume: 228


Appears on pages(s): 1109-1118

Keywords: construction; fabrication; optimized bridge girder; UHPC;ultra high-performance concrete

Date: 6/1/2005

The U.S. Federal Highway Administration recently constructed the first Ultra-High Performance Concrete (UHPC) vehicle bridge in North America. This prestressed concrete road bridge is composed of two bulbed double-tee girders, each having a 2.4 m deck width and a 0.84 m girder depth. The bridge spans 21 m. Structural optimization of the prestressed concrete girder/deck combination indicated that this pi-shaped section was an efficient girder for 21 to 30 meter spans. Fabrication and construction of this bridge is discussed.