Paul211 Posted June 4, 2021 Share Posted June 4, 2021 (edited) Hi all. Im looking to self build a frame for a concrete base. I will then call in a company to pump the required pour for the job. It will need to sustain the weight of heavy ex Army tanks around 60Tons. With the ability to build a workshop on top at a later date. What depth sub base? Thickness of rebar for base. And depth of pour would I need?? Am am I thinking way out my ability on this project?? regards Paul. Edited June 4, 2021 by Paul211 Link to comment Share on other sites More sharing options...
Conor Posted June 5, 2021 Share Posted June 5, 2021 You need an structural engineer to spec it I'm afraid. 1 Link to comment Share on other sites More sharing options...
Ronan 1 Posted June 5, 2021 Share Posted June 5, 2021 (edited) I've done a maintainance yard for tanks for the Army a right few years back, the yard slab was 300mm thick with 3 layers of A393 mesh and had a 450mm build up underneath. BUT obviously the build up would be ground dependant, I can't be positive now as it's 10 years plus but I think the build up was dependant on CBR results on formation of greater than 5% Edited June 5, 2021 by Ronan 1 Missed off mesh size 1 Link to comment Share on other sites More sharing options...
SteamyTea Posted June 5, 2021 Share Posted June 5, 2021 Don't tank track spread the load, this is partly why they can traverse rougher ground than wheeled vehicles (there are other reasons as well). Link to comment Share on other sites More sharing options...
MikeSharp01 Posted June 5, 2021 Share Posted June 5, 2021 13 minutes ago, SteamyTea said: Don't tank track spread the load, this is partly why they can traverse rougher ground than wheeled vehicles True and so the point loading needs careful thought as the transition on and off the slab offers a challenge and you can watch the load spread on a simulation tool but the essential point is that the point loading is actually quite low. 30T per track, and that spread across the area of the track in contact with the slab, but the track format is important as the tread type used also spread the loads differently. Link to comment Share on other sites More sharing options...
Ronan 1 Posted June 5, 2021 Share Posted June 5, 2021 (edited) 52 minutes ago, SteamyTea said: Don't tank track spread the load, this is partly why they can traverse rougher ground than wheeled vehicles (there are other reasons as well). Yeah your correct but if I remember conversations at the time the big pressure came from the slewing movement from the tracks as oppose to point loads Edited June 5, 2021 by Ronan 1 Bleeping auto correct Link to comment Share on other sites More sharing options...
SteamyTea Posted June 5, 2021 Share Posted June 5, 2021 Just now, Ronan 1 said: sleeping movement Not sure what that is, sounds like dynamic loads. Being single and living on my own, I have no understand about what happens when I sleep, other than, I cease to exist. Link to comment Share on other sites More sharing options...
Ronan 1 Posted June 5, 2021 Share Posted June 5, 2021 Should have read slewing ? Link to comment Share on other sites More sharing options...
SteamyTea Posted June 5, 2021 Share Posted June 5, 2021 1 minute ago, Ronan 1 said: slewing I prefer sleeping at the moment. 400,000 extra people in Cornwall this week, I and have fed at 1000 if them. Link to comment Share on other sites More sharing options...
Ronan 1 Posted June 5, 2021 Share Posted June 5, 2021 (edited) 8 minutes ago, SteamyTea said: I prefer sleeping at the moment. 400,000 extra people in Cornwall this week, I and have fed at 1000 if them. Sounds like there will be plenty of slewing about Cornwall this week too... Edited June 5, 2021 by Ronan 1 Link to comment Share on other sites More sharing options...
SteamyTea Posted June 5, 2021 Share Posted June 5, 2021 (edited) 8 minutes ago, Ronan 1 said: Sounds like there will be plenty of slewing about Cornwall this week too... My journey to work is going to have to be in escorted convoy apparently. We have not heard too much more this last week. Still, I can write slogans on the side of the car. Edited June 5, 2021 by SteamyTea 1 Link to comment Share on other sites More sharing options...
Bonner Posted June 5, 2021 Share Posted June 5, 2021 10 hours ago, Paul211 said: It will need to sustain the weight of heavy ex Army tanks around 60Tons. With the ability to build a workshop on top at a later date. Why do you need to put it on concrete? What about stone and gravel? Then build a workshop around it on normal foundations ... Link to comment Share on other sites More sharing options...
Lesgrandepotato Posted July 4, 2021 Share Posted July 4, 2021 It’s going to tear the surface off. Suspect it needs something very very hard. Link to comment Share on other sites More sharing options...
ToughButterCup Posted July 18, 2021 Share Posted July 18, 2021 From my office window in Berlin years ago I regularly saw the devastating effect of tank tracks on well maintained German roads. It was the slewing at the roundabouts that caused the most aggro. The local Tankies exercised their right of passage through Berlin every month. They were always followed by a road repair crew. I watched bemused at a protester who enraged by their passage, stopped infront of the column, threw her bike at the lead tank. Whereupon the whole column about-faced and buggered off. AS all four tanks turned-tail, 400 meters of the road was shredded as if by a huge grater. The mess was a sight to behold. The surface of your tank park will need to be very tough indeed - and I should think the tanks'll need rubberised tracks too. Link to comment Share on other sites More sharing options...
Oz07 Posted July 18, 2021 Share Posted July 18, 2021 I'd prefer something not hard bound like plannings which could be repaired easily. Not great for workshop though. Link to comment Share on other sites More sharing options...
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