www.pedestrians.org Part 3. Demolition of an office building at 1750 Old Meadow Road in McLean, Virginia. Produced by John Z Wetmore, producer of "Perils For Pedestrians".
Must have been training day on the high reach .Huge difference in speed & the way this operator went about taking down those floors compared to the first 2 videos.
Agreed. This high-reach operator is taking too much time picking at the precast concrete cladding, the other operator used the strategy of shearing the columns and beams where they connect to adjacent columns and letting gravity do most of the job of collapsing the floors. Attached items like the cladding will fall on their own accord when the floor collapses. That operator was able to take out each bay (rectangular or square floor units between columns) quickly by concentrating on columns. Later, it seems that something is preventing the shear from opening. As one commenter said, perhaps it is training day on the high-reach demo Hitachi excavator. You gotta get experience by doing!
I do think the original operator was back on the last third of this video. He set up a pancake collapse like the operator did in the last video. Great stuff, John!!! I watch a lot of demo videos. Yours are some of the best.
How in the world does a person get the bottom jaw on the building muncher stuck, gets it freed then gets it stuck again? Great footage of the past 3 days of this demo!
Must have been training day on the high reach .Huge difference in speed & the way this operator went about taking down those floors compared to the first 2 videos.
Very Huge difference
I thought the same thing. There is a lot of difference between the operator on today's video versus the previous two.
Agreed. This high-reach operator is taking too much time picking at the precast concrete cladding, the other operator used the strategy of shearing the columns and beams where they connect to adjacent columns and letting gravity do most of the job of collapsing the floors. Attached items like the cladding will fall on their own accord when the floor collapses. That operator was able to take out each bay (rectangular or square floor units between columns) quickly by concentrating on columns. Later, it seems that something is preventing the shear from opening. As one commenter said, perhaps it is training day on the high-reach demo Hitachi excavator. You gotta get experience by doing!
I do think the original operator was back on the last third of this video. He set up a pancake collapse like the operator did in the last video. Great stuff, John!!! I watch a lot of demo videos. Yours are some of the best.
How in the world does a person get the bottom jaw on the building muncher stuck, gets it freed then gets it stuck again? Great footage of the past 3 days of this demo!
Erster