You are trying to avoid a condition where frost occurs in the soil directly under a footing and in which case the soil expands (or rather the moisture freezes and expands within the soil matrix) and dislocates the footing. As mentioned in the other thread, would be best to insulate footings having inadequate cover (side of wall below grade and laterally over footing) to maintain soils thawed under footing. Concur with blackwed, however assuming a frost depth of 6 inches anywhere in south carolina is a typical, very conservative assumption
The state currently uses ibc 2003.
Hello, i am currently designing concrete drilled piers, and per the geotech report, the recommendations incur a 1600 psf design stress for potential frost heave
The recommendations also state that placing friction reducing material can be considered as an alternate option to prevent damage. On the other hand, dry, clean, sand or gravel may freeze without heaving Heave can vary a lot from year to year depending on moisture conditions and weather. Frost depth also tends to presume a bit of heated building in the tabulated numbers, so keep that in mind for say, a freezer building, unheated storage, etc.
Hi, guys, need help here Stoops are any sort of entrance entity that is situated adjacent to building exits They serve two main purposes Provide proper surfaces to exit on, such as a landing, stairway, ramp, etc
In freeze areas, provide a deep enough foundation underneath to avoid frost heave and the resulting jamming of the door as it tries to open.
Hello all, how can i determine the frost line depth for a project in virginia All i can find in the code is in r301.2 which leaves in up to the locality The online version of the code is blank in this section Any help would be appreciated.
However there is still some potential for frost heave, especially of there are variations in the soil
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