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Performance of New York's Long-span Bridges

by Satinder P. S. Puri, (M.ASCE), One World Trade Cent, New York, United States,
Richard J. Kratky, (M.ASCE), One World Trade Cent, New York, United States,
Maria Grazia Bruschi, (M.ASCE), One World Trade Cent, New York, United States,



Document Type: Proceeding Paper

Part of: Computing in Civil Engineering

Abstract:

This paper is a work-in-progress report on a database on the performance of long-span bridges located in New York State and built between 1801 and 1993. Of the 68 long-span bridges - bridges with main spans 400 ft or longer that have been identified so far, 57 long-span bridges are still in operation. At present, there are nearly 20,000 bridges in New York State. The long-span bridges include examples of arch, girder, suspension, and truss bridges - but do not include any cable-stayed bridges. Except for two concrete bridges, the main load carrying elements of the superstructure of the remaining long-span bridges are made of steel. Performance is being recorded during the `construction' and `service stages' for the bridge as a `whole' and for the `components' for all conditions including accidental impact, corrosion, fatigue, floods, ice/snow, and wind. The database will include performance of full-scale bridges as well as simulated performance of laboratory and analytical models, and anticipated performance based on seismic evaluation studies. Bridges that performed satisfactorily and those that did not, as well as bridges that were damaged or replaced will be included. The database will include general and performance data, in a tabular format. Each bridge will be identified with a specific ID. General data will include information on items such as location, type of bridge, dimensions of main and side spans, sag, clearance, width, deck framing, type of suspension elements, type of corrosion protection system, and type of stiffening system. Data on rehabilitation, instrumentation used, and testing of bridges will also be included. Lessons learned from poor performance will be highlighted. A table will summarize the Age/Life-Span, in years, of bridges included in the database. After the database has been developed, the information will be distributed in a floppy diskette for easy dissemination of information on performance of New York's long-span bridges.

Subject Headings: Span bridges | Bridge components | Suspension bridges | Maintenance and operation | Bridge management | Steel bridges | Databases | New York | United States

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