ERECTION AND SAFETY MANUAL - Rigid Global Buildings
ERECTION AND SAFETY MANUAL - Rigid Global Buildings
ERECTION AND SAFETY MANUAL - Rigid Global Buildings
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<strong>ERECTION</strong> <strong>AND</strong> <strong>SAFETY</strong> <strong>MANUAL</strong><br />
4.6 COMPLETING <strong>AND</strong> PLUMBING THE FIRST BAY<br />
After the fi rst intermediate or interior frames have been set, RIGID recommends that all purlins, girts, and<br />
eave struts be installed in the braced bay and the entire bay plumbed, aligned and braced before proceeding<br />
further. If the building is designed without cable bracing. the erector is responsible for providing<br />
temporary erection bracing.<br />
When this bay is properly and accurately plumbed and braced, the remaining members, to a large degree,<br />
will automatically plumb and align when installed. Only a fi nal check of the building plumb remains, and<br />
few adjustments, if any, will be necessary.<br />
Plumb the frame with a plumb bob or transit, not a spirit level. To measure lateral plumbness hang plumb<br />
bob from top of the column down the outside fl ange as shown below. Adjust plumbing cables to obtain<br />
equal tape measurements at top of column.<br />
EAVE STRUT<br />
MEASURE<br />
PLUMB BOB<br />
MEASURE<br />
PLUMBING CABLE<br />
NOTE:<br />
Use OSHA approved tie offs, netting or rails when working on roof areas, and adhere to all OSHA<br />
safety rules. Safety fi rst!<br />
Technical information contained herein is subject to change without notice. Page 7.1-35<br />
Revision: 2<br />
April 2011
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