Frictional Force
Frictional Force
(OP)
We are designing a three storey wood structure that will sit on a concrete foundation. My question is, can frictional force be used to resist base shear or sliding of the structure?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: Frictional Force
RE: Frictional Force
RE: Frictional Force
Have Fun!
James A. Pike
www.xl4sim.com
www.erieztechnologies.com
RE: Frictional Force
RE: Frictional Force
BA
RE: Frictional Force
Thanks,
FEM4Structures
RE: Frictional Force
Don't you mean sill plate anchor bolts for the shear and hold downs for uplift at shear walls?
Hold downs aren't rated for lateral shear.
RE: Frictional Force
In some very specific situations, you can, and you have to rely on frictions to resist sliding.
Here is an example: say in design a 90' diameter by 100' tall grain storage silo in a seismic "D" zone, you have to rely on the friction between bottom of the silo and concrete to resist the huge base shear.
RE: Frictional Force
RE: Frictional Force
In my neck of the woods, it is common to use some sort of base sealant (often a slippery foam) that adequately fills in the differences between the wood and the concrete. Therefore, I could see the frictional coefficient approach 0 for the wood-foam-concrete interface. W/o testing it would be difficult to assume any real frictional resistance of this connection.
This is a perfect example of where the OP (not beating you up 531234) needs to include more information up front. There are engineers talking about wood/concrete friction and some talking about concrete to soil. Hope this helps in the future.