User guide

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C-5

RAISING RIGID FRAMES (CONTINUED)

After the columns have been erected, the ground-assembled rafter is hoisted into place and

connected to the columns. The size of the rafter that can be safely handled depends on

the equipment available and the experience of the erection foreman. Generally as many

connections as possible are made on the ground.

The ﬂange brace should be bolted to the rafter prior to raising in order to save time. The hoisting

equipment should never be released from the rafter until the frame is adequately braced,

so it cannot buckle or tip in the longitudinal direction of the building.

NOTE: Drawing above is intended as a general rigging method.

Actual rigging method will vary with member conﬁguration.

Flange braces

loose bolted