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Title	DESIGN AND CONSTRUCTION OF TRANSVERSELY POSTTENSIONED CONCRETE BULB TEE BEAM BRIDGE
Accession No	00485578
Authors	Hill, J J; McGinnis, L G; Hughes, W R; Shirole, A M
Journal Title	Transportation Research Record No. 1180
Corp. Authors / Publisher	Transportation Research Board
Publication Date	19880000
Description	p. 87-89; Figures(5)
Abstract	A six-span prestressed concrete bulb tee beam bridge, designed to eliminate the need for a conventional cast-in-place concrete deck, was constructed in Minnesota in 1986. Two end spans of this 484.7-ft (147.8-m) long structure were 70 ft (21.3 m) clear, and four interior spans were 85 ft (25.9 m) clear. Bars 1 in. (2.54 cm) in diameter were used to transversely posttension 6-ft (1.8-m) wide top fanges of five 40-in. (100-cm) deep bulb tee beams. A slip-formed, cast-in-place, reinforced concrete railing limited required formwork to only the low-slump wearing course, expansion devices, and pier diaphragms. A 2-in. (5.1-cm) minimum concrete overlay provided a good riding surface. Construction of this structure was completed in just 5 months at a cost of $450/sq yd ($538/sq m), with a savings of about 25 percent over a conventional design.
Supplemental Information	This paper appears in Transportation Research Record No. 1180, Bridge Design and Testing.
TRT Terms	Beams ; Bridge design ; Bridges ; Construction ; Costs ; Flanges ; Prestressed concrete ; Productivity ; Structural design
Other Terms	Bridge construction; Deep bulb tee beams; Time saving methods; Transverse posttensioning
Subject Areas	H25 STRUCTURES DESIGN AND PERFORMANCE; I24 Design of Bridges and Retaining Walls
ISBN	0-309-04720-X
Availability	Transportation Research Board Business Office Order Document: http://nationalacademies.org/trb/publications/tris/out_of_print.html Find a library where document is available Order Document: http://worldcat.org/isbn/030904720X
TRIS Files	HRIS
Database	TRIS Online

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