Quote:
Originally Posted by plasmodium
How about this? 
Same pipe - 165mm OD, 5mm wall, 1500mm long
Base plate - 300mm diam, 12mm thick
Same ribs - 1000mm x 100mm at base
Top plate - 8mm thick - does this really need to be so thick up here??
Should I join the ribs into the base of the top plate??? (Actually should I get the welder to do that....)
I was intending on leveling via double nuts on the base threads - likely M16 or 3/4" threaded rod in the concrete. What play do the holes need in order to be able to provide some degree of adjustment - obviously if the fit is perfect, not much adjustment will be possible - any ideas on play (if any needed), or should I just get them cut to fit the appropriate rod???
Thanks so far guys! |
Top plate - thicker the better. 8 would be a minimum. The top plate and the base plate only have their thickness to provide rigidity, so thicker is better. The pipe is a different story, diameter is what increases the rigidity, so bigger diameter is more important than a thicker wall (usually
).
By all means if you can join the stiffeners to the top plate, do it.
See my previous post about the anchor bolts (threaded rod) and base plate holes. If you are worried about placing the anchor bolts and keeping them in position while the concrete goes off you could always opt for chemsets
.
Al.