of turns around, such as the bumper of a truck. Then,
if the frame should go beyond the vertical, the tag
person would be able to keep it from falling.
To get the frame started from the ground, it should
be lifted by several people and propped up as high as
practical. Bolt an cave strut to each column, as shown
in figure 8-5. The cave struts allow the frame to be
propped at every stage of the lifting. After the frame
is in a vertical position, install guy lines and props to
it so it cannot move.
Now, raise the second frame in the same way, and
hold it vertically in place by installing purlins, girts,
and brace rods.
A crane or other suitable type of power equipment
can be used to hoist the frames into place where such
equipment is available. When power equipment is
used, the suggested procedure to comply with is as
1. Raise the columns and bolt them to the base
shoes and then brace them in plain.
Figure 8-6.Using power equipment.
2. Install all sidewall girts to keep the columns as
rigid as possible.
With the rods installed, plumb each frame column with
3. Bolt the roof beams together and install the
the carpenters spirit level.
gable posts and end-wall header.
Check the distance diagonally from the upper
4. Secure the guy lines, and tag lines to the roof
beams, as shown in-figure 8-6. Attach a wire rope sling
at approximately the center of each roof beam.
5. Hoist the roof beams into position on top of the
columns and bolt them in place.
6. When the second rigid-frame section is secured
in position, install all of the roof purlins, the gable
angles, and the louver angles. Attach the gable clips to
the purlins before raising into position.
7. Install the brace rods and align the first bay. THE
FIRST BAY MUST BE ALIGNED BEFORE
ERECTING ADDITIONAL BAYS.
comer of one frame to the lower comer of the adjacent
frame. When this distance is the same for each rod, the
columns will be plumb. After the sidewall rods are
installed, install the roof rods. The length of the roof
rods can be adjusted by tightening or loosening the
turnbuckle. When the two diagonal measurements are
the same, the end bay will be square.
After the two frames have been plumbed and
braced square with the diagonal rods (and the purlins,
the girts, and the eave struts have been installed), the
guy lines or props can be removed and the remaining
frames of the building can be erected. To raise the next
frame, attach blocks to the last frame raised.
Do not omit the diagonal brace rods that are
required in the last bay of the building.
Brace rods must be installed in the first bay erected
(fig. 8-7). These rods are of paramount importance
. Be sure and bolt the girts, the purlins, and the
since the y hold the frames in an upright position.
cave struts to the inside holes of the end frames.
THEY SHOULD NEVER BE OMITTED.
Install the cave struts, the girts, and the purlins
The diagonal brace rods are attached to the frames
in each bay as soon as a frame is erected.
in the roof and sidewall through the slotted holes
Exercise care to see that the diagonal brace rods
provided. Use a half-round brace rod washer and a flat
are taut and do not project beyond the flanges of the end
steel washer under the nuts at each end of the rods.
frame to interfere with end-wall sheeting.