Single and Double Reaction Beam Load Cells for Measuring Ice Forces

• Main Authors: Johnson,P R, Zarling,J P
• Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
• Format: Text
• Language: English
• Published: 1980
• Subjects: Snow; Ice and Permafrost; Mechanics; *ICE; *LOAD CELLS; MEASUREMENT; LOADS(FORCES); BEAMS(STRUCTURAL); ALASKA; PIERS; RIVERS; GIRDER BRIDGES; River ice; Reaction beam load cells; Fairbanks; Yukon; Ice; permafrost; Yukon river; Alaska
• Online Access: http://www.dtic.mil/docs/citations/ADA094622; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA094622

Two new types of load cells for attachment to bridge piers and direct measurement of ice forces were developed and tested with one type being installed on a pier of the Yukon River Bridge northwest of Fairbanks, Alaska. Both types of load cells used beams supported by base plates and carried nose plates that were loaded by the ice. The loads were imposed at the beams at locations differing from the support reactions so that the loads developed moments in the beams. By instrumenting them with strain gauges, the loads could be measured. Details of the design of the load cells, the means of calculating the loads and experience obtained with load cells are discussed. (Author)