Friction Collar for marine Wrok

[tarekzad]

We are doing a marine boardwalk project in UAE, the boardwalk is around 2,000 m2, the boardwalk ( beams and slabs are rested in a pile Cap, the pile cap rested over Steel piles )


where there are more than 140 piles, the piles shall be topped by pile cap and pile plug , the pile cap is 1.8 X 1.8 X 0.5 meter, pile cap is precast reinforced concrete, to fix and stabilise the pile cap ( concrete block/slab ) on the pile pipe ( 800 mm dia , 22 mm thk ) we need to have friction collar ( steel ring clamping around the pile pipe)

we need to calculate the collar area of contact to avoid any form of slippage between the friction collar and pipe, the dead weight of the pile cap ( concrete block ) is estimated at 4.6 MT 
The Pile pipe is Carbon Steel, and the material of the Friction collar shall be steel as well. 

please support us with any primitive or bespoke design formula 

Tarek Barham
+971563188219
tarek@zadconsult.com

 

[EngineeringEric]

Static Friction(Fs)=Static Friction Coeƒƒicient(μs)*Normal Force(N)

 

[tarekzad]

Dear Eric

thanks for reply

the design equitation shall specify the

friction collar area of contact with that pile pipe
the bolt/fasteners system and required size and tourqe

Tarek Barham
+971563188219
tarek@zadconsult.com