Safety

Rig from the bottom up. Select the correct rigging for the load below using the Master Rigger’s Reference Card panels at the right. Answers can be found below. Happy trails…

Once in a while we are faced with a rigging challenge that requires us to go back to a² + b² = c² . To solve the following “tension” questions…

Portable roadway rental company Lion Trackhire provided a temporary track for a 1200 t crawler crane working at London’s 2012 Olympic Village site earlier this year. The crane, supplied by Ainscough Crane Hire, was being used to lift cooling equipment onto the roof of the new Marks and Spencer department store that is being built as part of the Olympic Village complex.

Ottawa, Ontario-based construction company AGF Raymond Rebar has been fined C$110,000 for violations of the Occupational Health and Safety Act after a worker was injured during the lifting of two rebar structures.

OSHA now offers a guidance document to help small businesses comply with the agency’s cranes and derricks rule published in August 2010. This new standard was issued to address the number of worker injuries and deaths associated with the use of cranes and derricks in construction.

When a load’s lifting points are not on the same plane or elevation, the tension in each sling must be calculated in a little more formal method. Use the panels…

The UK’s Health & Safety Executive has concluded an investigation into the failure of a hook on a loader crane whilst lifting a large cabin. Examination of the hook after the accident revealed that a roll pin used to secure a nut onto the threaded shank of the hook had failed. The failure of the pin allowed the nut to move on the threaded shank, particularly when the hook and load were rotated.

The Crane and Rigging Rodeo at ConExpo 2011 was a tremendous success! Crane operators performed tasks that challenged their ability to operate a crane and suspended load through a pre-designated…

Identify the rigging that does not have sufficient rated capacity for the load. If under-rigged, suggest the proper size. Use the panels from the Journeyman Rigger’s Reference Card (pictured below)…

Accidents, incidents and near miss-events occur on construction sites every year and they are 100 percent preventable. Here are 5 critical steps that will reduce your risk: