Definition of I-beam in English:

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I-beam

Pronunciation: /ˈīˌbēm/

noun

A girder that has the shape of an I when viewed in section.
Example sentences
  • According to Clements, all of the inn's metal I-beams were either sold on-site or recovered for later use.
  • The erection crew rented a 365-ton crane used to hoist the truss and steel I-beams into place.
  • Using salvage steel from the towers, the agency will simulate the force created by the airliner striking the building to see how the I-beams behaved.
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