Florida Fire State Practice Exam

What type of structural collapse gives victims a chance of survival when it occurs?

1. Column failure

2. A-Frame collapse

3. Pancake collapse

4. Roof fail

The correct answer is: A-Frame collapse

An A-Frame collapse is characterized by a type of structural failure where the building's roof structure gives way, causing the roof and the upper walls to tilt inward. This configuration can create a triangular void space beneath the collapsing structure. This void can potentially provide survivable space for individuals caught inside, making it more likely for them to survive compared to other types of collapse scenarios. In contrast, other types of collapses, such as column failure, pancake collapse, and roof failure, generally result in more destructive outcomes and less chance for victims to find refuge. A pancake collapse involves floors collapsing sequentially, creating a much denser mass of debris that often crushes anything beneath it. Column failure typically leads to significant sections of the building falling straight down, and roof fail situations may also lead to immediate collapse onto the occupants beneath with less likelihood of void space. Thus, the A-Frame collapse stands out as a structural scenario that offers potential survivability for trapped individuals.