The death toll was high because in the progressive collapse, section after section crushed people underneath it.

A later, related paper provides a comprehensive analysis of the mechanics of progressive collapse in tall buildings.

The disease is contributing to food shortages in that region and threatening progressive economic collapse.

It's mainly a progressive collapse of the circulatory and nervous systems.

He also explained that, once the initial structural failure occurred, progressive collapse of the entire structure was inevitable.

The firm carried out natural frequency tests and modelled the potential for progressive collapse.

Today they are interested in things like progressive collapse.

In a well-designed system, a localized failure should not cause immediate or even progressive collapse of the entire structure.

The uncontrolled fires ultimately led to the progressive collapse of the structure.

This type of structure should be used with care in seismic regions due to the risk of progressive collapse.