This is a view of floor openings we cut out for elevator shafts using a flat saw. We used chain faults and spreader beams to lower each floor cut down to the next lower floor. We started out on the 11th floor and worked our way down.
This is the very first opening that we cut out on the roof for the elevator shaft on the 11th floor.
This is another view looking down the elevator shaft with chain faults and spreader beams that were used to cut out each floor as we lowered it down to the next lower floor.
This is another view looking down from the 11th floor of the elevator shaft opening that we cut out.