The castellated beam is a modified steel beam. In which the beam is cut in the central web portion were no great force is present.
Cut near to neutral axis of the beam where we required less amount of material mass to resist various force.
The opening shape may be hexagonal, rectangular, circular, etc.
Due to opening in web we get some benifit
- Saving in material
- Lighter weight
- Due to increased depth allowed, we get more strengthen beam
- Good aesthetic view
- Esay handle with roof febrication work.