Citation

GangaRao HVS, Taly NB. Transp. Eng. J. ASCE 1978; 104(1): 15-29.

Copyright

(Copyright © 1978, American Society of Civil Engineers)

DOI

unavailable

PMID

unavailable

Abstract

Development and design of several innovative prefabricated superstructural systems for short span less than 75 ft (23 m) highway bridges, including the current state-of-the-art of construction, have been presented. These include cold-formed steel box girder, composite cold-formed steel box girder, prestressed T-box girder, waffle slab, space truss, and rigid frame (flat arch) systems, etc. A numerical rating scheme has been developed to evaluate the relative superiority of one bridge system over the other, and recommendations have been made accordingly. It is found that a superstructure formed from a stiffened plate supported over steel stringers is superior to several other systems considered herein. Prefabricated cold-formed box girder, prestressed concrete T-box girder, rigid frame (flat arch) bridge, and waffle slab systems are very efficient and economical systems that merit implementation as "demonstration" projects.

Language: en