Bosnian Mosque Design 3 of 3
Production & Installation
Once the truss arch designs were completed, production commenced. “The production process went really well given the early collaboration work we had done as a whole team,” says Jim. “Our saw was able to print on each piece and label it clearly for the guys assembling the trusses.” Since the trusses were so similar, the same jig could be used for every set up with only minor changes to accommodate the changing base sections. “It was a
lot like putting the same puzzle together again and again.
The trussed dome was assembled on the ground at the jobsite. Each wood truss arch was attached to the metal tension and compression rings using standard hangers. Ken says, “We purposely designed the trusses to accommodate a standard hanger so we wouldn’t have to have one specially made
The biggest challenge during dome assembly was bracing the trusses as they were installed. “The framers originally thought they could use the sheathing as their bracing as they went, but they quickly found out that wouldn’t work,” says Jim. The dome design called for three layers of ¾-inch plywood with fasteners that would suck the plywood to the wood trusses and bend them to the curve of the dome
“Bracing is not straightforward with a dome,” says Ken. “Because of the curve, the distance between each truss varies at each joint, so the framer couldn’t just use their standard approach to pre-cut bracing material.” To help, Ken put joint spacing on the truss layout as well as bracing locations so installers could cut their bracing to the right lengths.