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- 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"
- Top or Bottom of Footing? | Eng-Tips
Frost depth always has been and should be to the bottom of the footing 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
- Frost Heave Calculation | Eng-Tips
Frost heave can easily be several inches in northern states with frost-susceptible (silty) soils and a shallow water table or just poor drainage 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
- Drilled Pier Frost Heave | Eng-Tips
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
- Stoops | Eng-Tips
Stoops are any sort of entrance entity that is situated adjacent to building exits They serve two main purposes: 1 Provide proper surfaces to exit on, such as a landing, stairway, ramp, etc 2 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
- Frost line depth | Eng-Tips
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
- Floating slab on grade detail at exterior door | Eng-Tips
I will probably continue to show a floating slab with an expansion joint between the slab and the typical exterior wall, and then show a downturn thickened slab edge bearing on either a short foundation stem wall (frost wall I guess you guys and or gals call it up north) or directly on the footing
- How is frost depth determined calculated? | Eng-Tips
If frost depth is determined for a county, how many tests do they perform before the county is satisfied with their estimate of frost depth? Is climate change taken into account in frost depth calculations? It seems to me that there are a ton of variables that could affect frost depth, so am just curious how these numbers are typically determined
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