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-   -   A stronger arch (http://www.fornobravo.com/forum/f28/stronger-arch-4882.html)

toddj 08-23-2008 11:59 PM

A stronger arch
 
1 Attachment(s)
This is how I plan to do my dome and chimney arches.

Ken524 08-24-2008 05:42 AM

Re: A stronger arch
 
Hi Todd,

I like the way it looks. Will that design reduce the outward pushing forces on the side walls that most of our other arch designs have? Seems like it would.

Keep up the great work!

toddj 08-24-2008 07:58 AM

Re: A stronger arch
 
Hi Ken,

I really like the squarish arch like on your oven VS. the round arch but I needed to find a way to make it more of an interlocking structure.

It should greatly reduce outward force - not eliminate it - but it does push a lot of the force down rather than out.

anyone want to run the numbers and map the load path????

.

toddj 08-25-2008 08:43 PM

Re: A stronger arch
 
Testing it out with a rough cut.. so far I like it...

http://www.fornobravo.com/forum/phot...1_CIMG1948.jpg

http://www.fornobravo.com/forum/phot...1_CIMG1952.jpg

christo 08-26-2008 05:54 AM

Re: A stronger arch
 
I like the proportions very much.

How does the base of the arch interlock with the dome ring? Are the bottom 3 or 4 bricks integrated into the opening of dome?

Christo

toddj 08-26-2008 08:50 AM

Re: A stronger arch
 
Hi Chrissto, yes this photo does not show the bottom two bricks so it is acutally 5" taller than what is shown.

dbhansen 08-26-2008 09:36 AM

Re: A stronger arch
 
Superb work so far, Todd! Let me guess - you're an engineer?

toddj 08-26-2008 08:01 PM

Re: A stronger arch
 
Ha Ha.. You offend :) I an an inventor and mad scientist but I do have engineers that work for me...

http://www.fornobravo.com/forum/phot...1_CIMG1965.jpg

Les 08-26-2008 08:30 PM

Re: A stronger arch
 
Quote:

Originally Posted by toddj (Post 39844)

It should greatly reduce outward force - not eliminate it - but it does push a lot of the force down rather than out.

anyone want to run the numbers and map the load path????

.

The strongest arch that can be achieved is a true semi circle. Is it needed in our apps - no. I think what you have going looks great and you should have no problems. I am assuming that I need to put around 200 pounds of brick, mortar, flue pipe on top of mine. That is why I added some more steel. If you are going to load any arch - I would plan on some support. Fire brick, being solid, doesn't offer near as much in shear strength as core's do.

Great work Dude, like I said , make us proud. I KNOW you can do it.

Les...

toddj 08-26-2008 08:46 PM

Re: A stronger arch
 
THanks Les!!


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