DEVELOPMENT OF DATA-ACQUISITION SYSTEM FOR STRESS HISTORY STUDIES OF HIGHWAY BRIDGES
Of more than 500,000 bridges in service in the nation today, many are known to be inadequate or even unsafe for serving the present and future needs of highway users. Recognizing the need for studying the behavior of existing bridges by compiling large amounts of strain-history data, the Federal Highway Administration encouraged the States to initiate programs for the field testing of highway bridges. In accordance with federal recommendations, the Illinois Department of Transportation has developed an electronic data-acquisition system which can simultaneously record as many as 28 channels of strain data and related information. This report contains a detailed description of the basic system components and describes the function of the system. The system provides an accurate analog record of strain data and other related information produced by heavily loaded trucks crossing the test structures.
- Report on Life Expectancy of Highway Bridges, Stress History Studies.
Illinois Department of TransportationBureau of Materials and Physical Research
126 East Ash Street
Springfield, IL United States 62704-4766
Washington, DC United States 20590
- TAYLOR, R K
- Jacobsen, F K
- Publication Date: 1975-4
- Pagination: 48 p.
- TRT Terms: Behavior; Bridges; Data collection; Failure; Field tests; Highway bridges; Instrumentation; Loads; Measurement; Strain (Mechanics); Structural analysis
- Uncontrolled Terms: Loading
- Old TRIS Terms: Strain measuring instruments; Strains
- Subject Areas: Bridges and other structures; Highways;
- Accession Number: 00093473
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: Physical Research-59Intrm Rpt.
- Contract Numbers: IHR-301
- Files: NTIS, TRIS, USDOT, STATEDOT
- Created Date: Jan 14 1976 12:00AM