Does it Come with a Parachute?
Ruthmann, a German-based company, brags they manufacture the world’s highest reach Aerial Lift with a distance of 328 feet. The Steiger TTS1000 is a Vehicle Mounted (trailer) Aerial Lift that is used to get personnel on tall things like wind turbines.
Reaching these kinds of elevations is possible by utilizing several features found on Telescoping Boom Cranes. The base is a telescoping boom with a telescoping luffing jib. There is a personnel basket attached to a short fixed length luffing jib. The telescoping luffing jib can be positioned in line with the telescoping boom for maximum reach. The short luffing jib can luff 180º to better position the personnel basket .
Genie and JLG are competing for the world’s highest reach Extensible (telescoping) Boom Aerial Lift at 185 feet so far. The big difference in height has to do with how the aerial lifts function. The Steiger is setup level on outriggers with a long span giving it a lot of resistance from turning over. In comparison, the Genie and JLG Industries have far less resistance to turning over because they are expected to travel around the job site and they are setup on tires.
Video Source: Ruthmann Steiger
Read more about the Steiger TTS1000 on enr.construction.com.
A pole designed to support a large billboard sign was being erected in Central Florida in May, using a telescoping boom crane, when somehow it fell. Bramblett was in the basket of a Vehicle-Mounted aerial lift. Despite being told not to, he tied the basket to the pole. When the pole started to fall Bramblett tried to cut the basket free of the pole which was temporarily being held up by the aerial lift. The weight of the pole was too much for the aerial lift and the basket was ripped from the boom sending it and Keith Bramblett 40 feet to the ground.
What made the billboard pole fall?
The crane didn’t overturn, so the pole must have been rigged improperly. Lifting a large pole from horizontal to vertical and aligning with the base mounting bolts is no easy trick, though the technique is well known. Rigging a large pole can be difficult if there are no weldments to attach to. Using a basket or choker hitch around the pole would not have been adequate rigging to lift it to a vertical position. If the rigging had been done improperly, the pole could have slip out of the slings.
Why was the man basket tied to the billboard pole?
Workers are required to connect their fall protection harness to a proper anchor in the basket. They’re required to only tie off the basket if they are going to get out of it at elevation, which obviously isn’t the case here. The OSHA investigation will determine why the load fell but we may never know why Bramblett tied...
Darrell Rimmer Speeds Through Mobile Crane Operator Certification Exams and Passes!
Darrell Rimmer, an inspector and trainer with SIMMCO, a division of the Blurton Group, said, “I contribute my success to the formal training received from Crane Institute throughout the years, as well as my on-the-job experience.” He entered the industry in 1995. In 2003, he became a certified mobile crane inspector through Crane Institute. In 2006, he returned and earned both his Mobile Crane Operator Qualification and Mobile Crane Trainer Certification. He received his CIC Mobile Crane Operator Certification and CIC Practical Examiner Authorization in 2009. In addition to all of his mobile crane credentials, he is also a Qualified Rigger/Signalperson and a Certified Rigger/Signalperson Trainer.
Hats off to Mr. Rimmer, who recently renewed his CIC crane operator certification in a record time! Mr. Rimmer completed all six exams (General Knowledge, Telescoping Boom under 21 tons, Telescoping Boom 21-75 tons, Telescoping Boom over 75 tons, Lattice Crawler, and Lattice Carrier) in less than 2 ½ hours. The allotted time frame given is 6 ½ hours, though most complete the exams in 4 ½ to 5 hours.
Barbara Weedin, Open Enrollment Coordinator at Crane Institute, stated, “He has an incredible brain!” Mr. Rimmer modestly replied, “I’ve always struggled with math, but I’ve been trained through the Crane Institute, and I’ve been teaching others. Attending the class again was the review I needed to prepare for the exams.”
It is always important to consider ground support around the entire working area, not just where the load will be lifted.
It is common to think that if the ground is firm enough under the outriggers toward the lift, then the crane will be supported. However, this 500 ton All-Terrain crane has several tons of counterweight being supported by the outriggers on the opposite side of the crane.
If the crane swings over an outrigger, thousands of pounds per square inch of pressure impacts the float and the ground beneath it. Generally, the times three rule for blocking is adequate, but the actual load pressure on the ground for a crane configured similarly must be calculated. Additionally, a compaction test should be conducted to determine ground support.
After obtaining this information, a proper size blocking can be chosen for lifting the load safely.
Read the entire story at Vertikal.net.
The boom on this 220 ton capacity crane was overloaded while attempting to place an air conditioning unit on a building. Although the load was considered light, it was too far away causing the crane to tip. The operator managed to stop the tipping, but in doing so, created forces that bent the boom.
Read the entire story at Vertikal.net
A rare Japanese Pagoda tree was discovered on a job site in Edmond, Oklahoma. Locals pulled together to transplant it for everyone to enjoy. With the assistance of a telescoping boom crane, it was lifted onto a flatbed truck, then driven to its new home where it is currently thriving.
Read the entire story on how this Abandoned Rare Tree Got a New Lease on Life.