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## Cutting or Removing Structural Members During Overhaul One factor over which firefighters have direct control is the cutting of structural members during overhaul. We must avoid removing any structural components unless they are obviously not supporting any weight other than their own. There is r...

## Cutting or Removing Structural Members During Overhaul One factor over which firefighters have direct control is the cutting of structural members during overhaul. We must avoid removing any structural components unless they are obviously not supporting any weight other than their own. There is rarely any reason to do so, anyway. Careless overhauling could result in at least a partial collapse around the members. ## Vibration and Impact Load Firefighters are often called on to operate in areas that are only marginally stable. Although you may be able to walk gently across an area that is damaged, you must avoid jumping onto it or causing any other type of impact load. When a force is applied almost instantaneously, the result is a much greater shock to the structure than if the same weight was applied gradually. At times, both impact loads and vibrations can