02 August 2013

Day 526: Structural steel for the roof

On the inside of the concrete rim, we have a sheet metal roof. A structural steel frame carries the roof sheeting. Steel I-beams are welded to a steel base plate which is fastened to the concrete with chemical anchors. A steel angle is welded onto the top of the I-beam. Steel purlins are then fixed to the steel angles with bolts and nuts.  Everything is in place to receive the roof sheeting.  





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