The command syntax in the STAAD input file for assigning castellated beams is:
MEMBER PROPERTY AMERICAN
Member-list TABLE ST section-name
Example
MEMBER PROPERTY AMERICAN
2 TABLE ST CB12X28
Assigning Design parameters
Under the PARAMETERS block on input, the code name must be specified as:
CODE AISC CASTELLATED
Example
PARAMETER
CODE AISC CASTELLATED
UNL 0.01 MEMB 25 31
FYLD 50 MEMB 25 31
SOPEN 11.124 MEMB 25 31
…
CHECK CODE MEMB 25 31