In the dark, he once hit his head on the end of a steel beam.

By the end of March 2010, steel beams began to be erected for the second office floor.

The steel beams do most of the damage in a collision.

The dome is supported by 32 steel beams, 8 large and 24 small.

For example, the building has 300,000 steel beams - in 250,000 different sizes.

The steel beam was about two inches from its face.

He finally left ground zero on June 29, two weeks after the final steel beam was removed.

Listening devices were placed in the steel beams, the officials said.

On July 30, 2012, the first steel beams for the stadium were laid down.

Four barges were built to move steel beams into position.