Castellated beam design
Castellated beam design
(OP)
I have to design a beam, as light as possible, in normal steel and since my shears are not high, i wanted to use a twin web box girder with castillated webs. I have to design it to the British Standard. Does anyone know of a good reference where i can get a step by step design procedure for a castellated beam?






RE: Castellated beam design
RE: Castellated beam design
RE: Castellated beam design
RE: Castellated beam design
Also Dr. Omer Blodgett's "Design of Welded Structures" has a dedicated portion on the design of these beams.
My favorite part about them is you lose no weight, increase depth (I) and gain lots of strength plus the web openings can be used for other trades.
Good luck
RE: Castellated beam design
RE: Castellated beam design
I have already contacted SMI and I have their excel spreadsheet for non-composite castellated beams. SMI only addresses simple span conditions. I on the other hand have a non simple span condition (cantilever or 2 span or more). I have already looked at Blodgett's example and it only addresses a simple span. I also have "Castelite's" catalog w/ interaction diagrams. I have been told from SMI that these only address simple spans.
RE: Castellated beam design
Design of castellated beams for use with BS 5950 and BS 449
The Steel Construction Institute, 1985
ISBN 0 86200 039 4, 54 pages, 21 figures, A4 paperback
Provides the designer with design methods, safe load
tables, and interaction curves to enable suitable
castellated beam sizes to be selected and analysed.
Ultimate capacities are included suitable for designs to
limit state concepts, as given in BS 5950, whilst the
safe load tables are based on permissible stresses in
accordance with BS 449.
RE: Castellated beam design