A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
There are approximately 1877 substandard bridges on the federal aid system and 2193 substandard bridges off the federal aid system in Idaho, Oregon, and Washington State (Secretary of Transportation, 1989). A bridge can be divided into the substructure, superstructure, and decking. The choice of construction materials is critical for the function and economics of all elements. Wood, steel, and concrete are the principle materials utilized. This research focused on the criteria that county engineers in Idaho, Oregon, and Washington State consider when selecting material for a short span bridge structure. A survey was prepared and forwarded to county officials to determine past practices and anticipated future trends. A response from 42% of the counties provided valuable insight into short span bridges in the Northwest. One of the most significant facts is that precast concrete structures are predominately utilized for the superstructure and decking. There are a number of counties that have special considerations that allow for the use of wood and steel structures but they are the exception. The preponderance of county officials recognize precast elements as the most superior material both in performance and economics.
There are approximately 1877 substandard bridges on the federal aid system and 2193 substandard bridges off the federal aid system in Idaho, Oregon, and Washington State (Secretary of Transportation, 1989). A bridge can be divided into the substructure, superstructure, and decking. The choice of construction materials is critical for the function and economics of all elements. Wood, steel, and concrete are the principle materials utilized. This research focused on the criteria that county engineers in Idaho, Oregon, and Washington State consider when selecting material for a short span bridge structure. A survey was prepared and forwarded to county officials to determine past practices and anticipated future trends. A response from 42% of the counties provided valuable insight into short span bridges in the Northwest. One of the most significant facts is that precast concrete structures are predominately utilized for the superstructure and decking. There are a number of counties that have special considerations that allow for the use of wood and steel structures but they are the exception. The preponderance of county officials recognize precast elements as the most superior material both in performance and economics.
Assessment of Short Span Bridge Materials
J. R. Brown (author)
1990
146 pages
Report
No indication
English
Highway Engineering , Construction Equipment, Materials, & Supplies , Bridges , Construction materials , Concrete , Economics , Idaho , Materials , Oregon , Steel , Structures , Superstructures , United States Government , Washington(State) , Substructure , Decking , Prestressed concrete , Failure(Mechanics) , Prefabrication , Theses , Construction , Short span bridges , Cost analysis , Maintenance , Repair , Replacement
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