Robert Compton on sun 1 feb 98
On the subject of Arches. One point that may be misconstrued by
potters who have not thrown an arch before is the repeated mention that
Welding is necessary to the process.
As has been mentioned before a Cantenary needs no structural
support ( at least in theory, but you will find it best to cover it with
a shell of concrete to stabilize side to side sway) where as a sprung or
roman arch needs buttressing, usually done with a steel frame, hence the
reference to welding..
It is not necessary to weld a frame, it can be bolted together
so you really only need a drill. Or better yet if you have the steel
precut when you purchase it you can have your metal supplier burn or
drill the holes you need.
-
Robert Compton Pottery http://RobertComptonPottery.com
3600 Rt 116
Bristol, Vermont 05443 802-453-3778
Ann Zerger, Associate AIA and Chip Parker, AIA on tue 3 feb 98
Robert Compton wrote:
>
> ----------------------------Original message----------------------------
> On the subject of Arches. One point that may be misconstrued by
> potters who have not thrown an arch before is the repeated mention that
> Welding is necessary to the process.
>
> As has been mentioned before a Cantenary needs no structural
> support ( at least in theory, but you will find it best to cover it with
> a shell of concrete to stabilize side to side sway) where as a sprung or
> roman arch needs buttressing, usually done with a steel frame, hence the
> reference to welding..
>
> It is not necessary to weld a frame, it can be bolted together
> so you really only need a drill. Or better yet if you have the steel
> precut when you purchase it you can have your metal supplier burn or
> drill the holes you need.
>
> -
> Robert Compton Pottery http://RobertComptonPottery.com
> 3600 Rt 116
> Bristol, Vermont 05443 802-453-3778
Hey it's no great thing to burn some rods and steel together. It will
probably be cheaper to buy an old arc welder, some 7011 rods and a bunch
of angle iron than to go through the trouble of bolting it together.
You will always have it on hand for touch up fixes as the SOB breaks
down over use. We're into hot things as it is so lets keep it hot.
Chip Parker
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