Anyone who has actually been close to a tower crane hundreds of feet in the air knows just how much they can sway and move. My first experience was at the Great American Tower in Cincinnati, OH. Being on the 30th floor of the building under construction, I could look out and see a constant sway to the tower crane attached to the building. The wind at altitude can cause a tower crane to sway as much as four to five feet. When picking large weights, they can sway even more. In the video below you can see just how much a crane moves:
Researchers at MIT have developed a new camera system to visualize this movement. The researchers combined high-speed video and computer wizardry to show vibrations due to movement.
This new technology will help us better understand what is happening and how to make buildings, bridges, and cranes safer than ever before. With the use of these frequencies, we'll be able to better understand how much stress certain environments are putting on objects and possibly even detect structural damage.Best of all, the use of a camera is non-evasive and doesn't require any type of sensors or communication wires to be installed.