Linked from
The 17 pages that link to Beam (structure), each with the reason it gives.
Hypostyle hallRelated: Beams bridge the intervals between columns and carry parts of the roof.
Structural steelRelated: Steel beams carry floor and roof loads toward columns or walls.
Building (structure)Related: Beams transfer floor and roof loads toward columns or walls.
Construction setRelated: Beam-like pieces let sets form long spans and rigid frames.