Sources for Frost Depth Values - Eng-Tips Hello all, this is my first post here so please bear with me Where do you go to find accurate frost depth line values? At my job, we often have to design footers foundations rapidly so as to get them to a costumer for the purposes of an estimate Because everything needs done ASAP, contacting
When to Go Down to the Frost Depth | Eng-Tips I always hear that the footings have to be placed below the frost depth but does that apply to any footing? For a job where the local code indicates frost depth of 42”, all exterior bldg footings are placed at that depth but when it comes to the exterior stairs, they only go down 18” only!! The
Frost Protection for Interior Footings | Eng-Tips I'm looking at a set of structural plans and trying to understand why the exterior footings need to be placed below the frost line, but the interior footings are able to be placed right below the slab on grade with no foundation pier Is there a construction step that's done to ensure that heave is not an issue for interior footings slab on grade vs exterior footings? I know the soil below
Can foundation weight allow avoidance of frost depth? | Eng-Tips A contractor is suggesting the use of 1ft deep, very wide concrete slab to support heavy rotating equipment The local jurisdiction has a required frost depth 42in Can a very heavy foundation (while still below the allowable bearing capacity of the soil) eliminate the need to go below the 42"
Frost protection - void form thickness design | Eng-Tips Hi all, this may be old to someone but i need your input on frost heave design for my foundation I'm designing an unheated structural slab supported on piles Design depth of frost penetration is 2700mm from soil report I'm going to use Dow ethaform void form but i dont know how to calculate
Which soils are most susceptible to frost heaving? - Eng-Tips However there is still some potential for frost heave, especially of there are variations in the soil 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
Footings for small cabin re:frost heave - Eng-Tips Frost heave is going to be a problem What is the frost depth in your cabin area? The US Army Corps of Engineers has some freeware for calculating frost depth, but the climate input data is based on specific weather stations Their is probably data for North Dakota and other Northern U S plains states It is called ModBerg - do a Google search
Pre-existing foundation not meeting required frost depth Adding frost protection may be possible by excavating down to a certain depth and providing a layer of horizontal and or vertical insulation The amount and extents of insulation would depend on the required frost depth, number of degree days, whether the building is a heated or unheated building, etc
frost heave | Eng-Tips Frost heave! The evil twin brother of Canadian winters I did not realize that frost penetration was such that frost heaving was a problem N C The heaving occurred due to the behavior of different soil types (residual moisture, composition properties) to freezing To heave to a level whereby accesses were blocked thats a water problem, not "heaving" per se The underlying soils must have
Frost Depth | Eng-Tips 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