having the circle broken would weaken the rest of the arc.
Yes, although describing it as a ring beam was probably a misdescription as it actually probably only lends local support, not all-round support like a single solid beam would. My guess is that the primary intention was aesthetic more than engineering - why else make the lintels curved? No engineering advantage in that.
Reply | with quote | Posted by nigelswift 3rd January 2007ce 12:38 |
|