During fires, masonry walls have been moved to the point of collapse by expanding steel girders and beams. A 50-foot-long steel beam that is heated uniformly over its length from 72F to 972F can ...

There are few basic steel shapes that you will see often in building construction, including: angles, channels, purlins, I-beams, open web steel bar joists, and corrugated metal decking.

The steel beams, each signed by the hundreds of construction workers, project managers and science center staff and supporters who have made this 200,000-square-foot (18,600 square meters ...