This article needs additional citations for verification. (September 2023) |
Steel frame is a building technique with a "skeleton frame" of vertical steel columns and horizontal I-beams, constructed in a rectangular grid to support the floors, roof and walls of a building which are all attached to the frame. The development of this technique made the construction of the skyscraper possible. [1] Steel frame has displaced its predecessor, the iron frame, in the early 20th century.[2]