January 28, 2006:
Ironworker acrobats unbuilding the
Pearman cantilever
Yesterday Sparky watched our acrobats remove the
top section of the A
the next to last step in competing the cantilever removal.
Today, I watch the removal of the bottom section of the A - more
ironworker acrobatics. Here is the worksite
and the crane bringing the cables for holding the to-be-cut segment
(the half upside down V over the pier)
Two acrobats - one on each side grabbing the pair of cables
then orienting them - one for each side of the girder
and connecting a shackel to each side of the girder
and then gentle tension
Now to start cutting the girder - from our right to left
Burning a line across the girder
and then cutting across the edges
The last burn - and with your curious eyes, you can see the gap on left side
opening.
A little more tension separates the girder from the base
and signaling to lift the girder segment
Lifting
rotating
and lowering
Now for the other side - rotating to bring the cables to the nearer girder
Signaling
attaching the shackel for one of the two cables
a closer view
sort of walking down the girder
another step
Then starting to cut the girder
The last of the cutting
a closer view
Signaling to lift
the girder is free
and moved to the barge