Double-layered wooden arch truss

Claim 1

A building structure comprising; a plurality of double-membered wooden arch trusses each having an upper arch member formed of laminated wood, a lower arch member formed of laminated wood and extending substantially parallel to said upper arch member and spaced therefrom, a plurality of substantially radially extending connecting pillars connected between said arch member and spaced along said arch member, a plurality of reinforcing web member connected between said upper and lower arch members and extending diagonally across the space between said connecting pillars, and a plurality of metal reinforcing rods, one extending directly through each of said connecting pillars and said upper and lower arch members and having fastening means on the ends thereof for fastening said arch members and pillars into an integral structure; said trusses being positioned at spaced parallel positions along the building structure; a plurality of supporting posts, one at each end of each truss; a plate member extending along the top of the posts at each end of the trusses and having the ends of the trusses supported thereon; and a plurality of turnbuckles, one connected between the lower arch member of each truss and the plate member for adjusting the position of the truss on the plate member and constituting angle ties for said trusses.