Title:
Construction of an Optimized UHPC Vechicle Bridge
Author(s):
B.A. Graybeal and J.L. Hartmann
Publication:
Symposium Paper
Volume:
228
Issue:
Appears on pages(s):
1109-1118
Keywords:
construction; fabrication; optimized bridge girder; UHPC;ultra high-performance concrete
DOI:
10.14359/14525
Date:
6/1/2005
Abstract:
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.