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 />
4.3 UNLOADING FRAMING<br />
LIFTING CABLES <strong>AND</strong> SPREADER BARS<br />
In all instances the length of the lifting cables should be such that the angle between the rafter and the<br />
lifting cables is no less than 45 degrees. To reduce the severe compression stresses at the ridge of the<br />
rafters which are created by the angle of lifting cables, a spreader bar is recommended, which allows the<br />
lifting cables to be parallel to each other. See page 23 for additional information!<br />
o<br />
45 MIN.<br />
RAFTER<br />
SPREAD-<br />
ER BAR<br />
NOTE:<br />
Stay well in the clear of loads being moved by any lifting device. Hands and feet should be kept<br />
clear of moving loads and never stand under a load being lifted. Remember, <strong>SAFETY</strong> FIRST!<br />
Technical information contained herein is subject to change without notice. Page 7.1-21<br />
Revision: 2<br />
April 2011
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