Olympia Steel Buildings Girt and Purlin Connections
Holes for attaching the steel buildings purlins to the rafters are punched in the flanges of the beams that form the building rafter by precision CNC computer controlled machinery at the steel building factory so that you can simply bolt the purlins directly to the flange of the rafter beams at the jobsite. The flanges on the columns are also punched by precision CNC computer-controlled machinery in the metal building manufacturing plant making it easy to bolt the girts directly to the flanges of the columns on the sides of the building. There is no worry of whether clips are mis-aligned or bent causing costly delays since clips are not required.
Steel Building Competition’s Connections
Other metal building companies weld clips onto the metal buildings rafter beams and the columns at the sides of the building so they can bolt the purlins and girts to the clips. This system is used because these steel building companies do not have the sophisticated equipment required to punch holes in the beams on the roof or the columns on the sides that would allow them to be directory bolted together.
Problems using clips with steel buildings:
1. Since clips must be hand welded, they often are not aligned correctly. Then the clips must be removed and welded back onto the beams at the correct locations on the roof and on the columns at the sides for proper alignment to allow the purlins and girts to be attached to the building.
2. Because clips are only tack welded to the beams, many times they may be bent or the weld may be broken during shipping or erection of the building Then the clips must be removed and welded back onto the beams at the correct locations on the roof and on the columns at the sides for proper alignment to allow the purlins and girts to be attached to the building.
3. Welding clips is not structurally sound, lacks quality control and creates problems during building erection.
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