A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Infrared Heating to Prevent Preferential Icing of Concrete Box Girder Bridges
This is a report on the use of infrared heat lamps to heat the underside of the bridge deck in order to prevent preferential icing. Seven watts per square foot was used to heat the underside of the deck within the concrete box. One box was insulated to help contain the heat, the other had no insulation. The system was found to be inadequate because of excessive lag time and insufficient power. Twenty watts per square foot (on the average at least) was determined to be necessary with this type of system to prevent preferential icing. The wind was analyzed along with the deck temperature data and found to control the effect of insulation on preferential icing. Insulation helps prevent preferential icing when the wind is parallel to the bridge but increases the chance when the wind is perpendicular to the bridge.
Infrared Heating to Prevent Preferential Icing of Concrete Box Girder Bridges
This is a report on the use of infrared heat lamps to heat the underside of the bridge deck in order to prevent preferential icing. Seven watts per square foot was used to heat the underside of the deck within the concrete box. One box was insulated to help contain the heat, the other had no insulation. The system was found to be inadequate because of excessive lag time and insufficient power. Twenty watts per square foot (on the average at least) was determined to be necessary with this type of system to prevent preferential icing. The wind was analyzed along with the deck temperature data and found to control the effect of insulation on preferential icing. Insulation helps prevent preferential icing when the wind is parallel to the bridge but increases the chance when the wind is perpendicular to the bridge.
Infrared Heating to Prevent Preferential Icing of Concrete Box Girder Bridges
R. G. Griffin (author)
1975
96 pages
Report
No indication
English
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