Effects of Heat Straightening Structural Steel, MLR-91-3, 1992

(1992) Effects of Heat Straightening Structural Steel, MLR-91-3, 1992. Transportation, Department of

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Abstract

Heat straightening of steel beams on bridges struck by over height trucks has become common practice in recent years in Iowa. A study of the effects of this heat straightening on the steel beams thus straightened is needed. Appropriate samples for mechanical and metallurgical tests were cut from the same rolled beam from the end which was heated and the end which was not heated and the test results were compared. The test results showed beyond doubt that the steel was being heated beyond the permitted temperature and that the impact properties are being drastically reduced by the current method of heat straightening.

Item Type: Departmental Report
Keywords: Axle loads, Bridges, Collisions, Heat, Mechanical tests, Metallography, Reduction (Chemistry), Straightening, Strength of materials, Trucks, Heat straightening, Steel beams
Subjects: Transportation
Transportation > Bridges and tunnels
Transportation > Roads and highways
Transportation > Research
Transportation > Design and Construction
ID Code: 16012
Deposited By: Iowa DOT Library
Deposited On: 03 Feb 2014 14:40
Last Modified: 22 Sep 2014 11:42
URI: http://publications.iowa.gov/id/eprint/16012