timber arch bow string (tied arch)
timber arch bow string (tied arch)
(OP)
Does anyone know of a design example for a tied arch (glulam upper circular arch .... and glulam lower tie). Want to analyze an existing 50 ft span tied arch …2 ft oc
Rise 9 ft. Upper arch glulam 1 1 ¾” x 7 ½”.. lower tie 2 x 6. … rods support lower tie
Rise 9 ft. Upper arch glulam 1 1 ¾” x 7 ½”.. lower tie 2 x 6. … rods support lower tie





RE: timber arch bow string (tied arch)
M.S. Structural Engineering
Licensed Structural Engineer and Licensed Professional Engineer (Illinois)
RE: timber arch bow string (tied arch)
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: timber arch bow string (tied arch)
RE: timber arch bow string (tied arch)
7-1/2" deep. Yes the tie is an ordinary 2 x 6 ??? with a plywood gusset the arch at the springline OMG. The spacing of the arches is indeed 24" the Canadian Wood Council's design manual 2005 does not have a design guide of a tied arch.
RE: timber arch bow string (tied arch)
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: timber arch bow string (tied arch)
RE: timber arch bow string (tied arch)
Andreas
RE: timber arch bow string (tied arch)
Mike McCann
MMC Engineering
http://mmcengineering.tripod.com
RE: timber arch bow string (tied arch)
RE: timber arch bow string (tied arch)
I would not like to see you go to much trouble... but world like to see
the shots if you had a spare minute. Thanks a bunch
RE: timber arch bow string (tied arch)
RE: timber arch bow string (tied arch)
Andreas
RE: timber arch bow string (tied arch)
Do you have print-out which would give me a simple (or approx) method of analysis of a tied arch? (I forgot how to do a 2-hinged arch 40 years ago +. Besides I have never got into finite analysis (born too soon). The one I am looking at has an ordinary 2x6 tie (not a tension rod). There are no web members. The lower chord is attached to the laminated arch member with plywood gussets.(Span 50 ft spacing 2 ft). Perhaps it was home made??
Ritz
RE: timber arch bow string (tied arch)
I do not have much information on design of such members. I did find a 1950s competitors brochure on 24" o/c glued laminated tied-segment arches. Glued laminated timber curved top chord and solid lumber gusseted horizontal bottom chord.
Andreas