MEASURING LIVE LOAD STRESSES ON BRIDGES

Award Information
Agency: Department of Transportation
Branch: N/A
Contract: N/A
Agency Tracking Number: 9300
Amount: $284,189.00
Phase: Phase II
Program: SBIR
Awards Year: 1989
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Po Box 3722, Albuquerque, NM, 87110
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 William S Riippi Sr
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THE DEPARTMENT OF TRANSPORTATION (DOT) IS REQUIRED TO MAIN- TAIN THE NATION'S BRIDGES AND ENSURE THEIR SAFETY. HOWEVER,A LARGE NUMBER OF BRIDGES HAVE NOT BEEN RECENTLY INSPECTED TO DETERMINE IF THEY ARE CAPABLE OF SAFELY SUPPORTING THE TRAFFIC THAT IS CROSSING THEM. THE CURRENT METHOD OF SURVEYING BRIDGES, TO DETERMINE THEIR STRESS CONDITION, IS COSTLY AND TIME-CONSUMING. THIS PROGRAM WILL DEVELOP, FABRICATE, AND TEST A PROTOTYPE INSTRUMENT THAT WILL QUICKLY AND ACCU- RATELY DETERMINE THE STRESS LEVELS IN STEEL BRIDGES. THE PROPOSED CONCEPT INCLUDES A ONE-PIECE STRAIN GAGE INSTRUMENTTHAT WILL BE EASILY INSTALLED AND REMOVED, USING A MECHAN- ICAL ATTACHMENT, FROM A STRUCTURAL BRIDGE MEMBER. THE THE INSTRUMENT WILL PROVIDE THE PEAK LIVE LOAD STRESSES DIRECTLY ON LIQUID CRYSTAL DISPLAYS. USE OF THIS INSTRUMENTWILL SIGNIFICANTLY REDUCE INSPECTION TIME AND ALLOW THE DOT TO MORE EFFICIENTLY INSPECT BRIDGES.

* Information listed above is at the time of submission. *

Agency Micro-sites

SBA logo
Department of Agriculture logo
Department of Commerce logo
Department of Defense logo
Department of Education logo
Department of Energy logo
Department of Health and Human Services logo
Department of Homeland Security logo
Department of Transportation logo
Environmental Protection Agency logo
National Aeronautics and Space Administration logo
National Science Foundation logo
US Flag An Official Website of the United States Government