A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Engineering Performance of Thermo-Active Foundations
Incorporation of heat exchangers into drilled shaft foundations is a novel approach to improve the energy efficiency of building heat pump systems and provide necessary structural support using the same construction materials. An efficiency evaluation indicates that heat exchange systems such as thermo-active foundations are particularly suited to the climate in Colorado. This study focuses on the changes in the ultimate axial capacity of thermo-active foundations that can be expected after cycles of heating and cooling through a review of the literature from Europe. To compliment the data in the literature, a preliminary series of centrifuge-scale model tests were performed on thermo-active foundations in compacted silt. Foundations that were heated to 60 °C after application of a building load indicate an increase in axial capacity of 30% compared to a baseline foundation tested at 25 °C. Foundations that were heated to 60 °C after application of a building load, then cooled back to 25 °C showed an increase in capacity of only 20% above the baseline case.
Engineering Performance of Thermo-Active Foundations
Incorporation of heat exchangers into drilled shaft foundations is a novel approach to improve the energy efficiency of building heat pump systems and provide necessary structural support using the same construction materials. An efficiency evaluation indicates that heat exchange systems such as thermo-active foundations are particularly suited to the climate in Colorado. This study focuses on the changes in the ultimate axial capacity of thermo-active foundations that can be expected after cycles of heating and cooling through a review of the literature from Europe. To compliment the data in the literature, a preliminary series of centrifuge-scale model tests were performed on thermo-active foundations in compacted silt. Foundations that were heated to 60 °C after application of a building load indicate an increase in axial capacity of 30% compared to a baseline foundation tested at 25 °C. Foundations that were heated to 60 °C after application of a building load, then cooled back to 25 °C showed an increase in capacity of only 20% above the baseline case.
Engineering Performance of Thermo-Active Foundations
McCartney, John S. (author) / Rosenberg, Joshua E. (author) / Sultanova, Axaule (author)
Biennial Geotechnical Seminar 2010 ; 2010 ; Denver, Colorado, United States
GeoTrends ; 27-42
2010-10-27
Conference paper
Electronic Resource
English
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