Perka: Guide To Erecting M4000 Frames Over 40’ Wide

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Over 40’ Wide 1. Most popular way for erecting larger frames is to first set all of the columns onto the anchor bolts and brace securely towards the outside of the building. 2. Then install some of the girts, bottom cord and wind bracing to help stabilize the columns. 3. Then raise assembled rafter sections carefully with appropriate slings/strap harness (ie. Spreader bar and 2 slings) up and onto column haunch connections. Insert rafter ends into columns with drift pins and then bolt together. 4. At this point, you should cable brace your frames for rigidity. 5. You are now ready for your second frame. Set frame in same manner as first. Install eave purlins and then every second purlin from this point across frame putting only one fasterner per end. Install x-bracing where necessary but do not tighten. 6. Using the wind brace rods, plumb the columns of the building and (with site engineer’s approval) using washers or shims under the base plates, align the columns across the width of the building. Now, tighten nuts on anchor bolts. 7. Continue in same manner until all of the frames are up. By using intermittent purlins only, you will save valuable crane or equipment time. NOTE: These methods are popular methods used and will vary on each project and individual circumstances.