C-Beam Tables - Castellated

A table of SteelFab, Inc. castellated C-Beam™, called RAMSMI.CAS, is provided with the program. Although you can create and edit tables manually, it is not recommended that you modify the RAMSMI.CAS table unless directed by the manufacturer, SteelFab, Inc.. Use spaces, not tabs, between the data items. The file name must have the extension .CAS.

CAUTION: Do not use a word processor as it might embed control characters into the file.

Note: The format for the castellated C-Beam™ is different than that of the cellular C-Beam.

The file has the following format:

The first line contains an E or S, indicating English or SI units.

The C-Beam sections are then listed in the following format:

Label TopSize BotSize emin emax dtmin dtmax dtstandard flag

where:

Label

the designation for the castellated C-Beam (e.g., CB18x14).

TopSize

the label of the wide-flange section used for the top (e.g.,W12 X14).

BotSize

the label of the wide-flange section used for the bottom (e.g., W12X16).

emin

the minimum e to be considered.

emax

the maximum e to be considered.

dtmin

the minimum dt to be considered.

dtmax

the maximum dt to be considered.

dtstandard

the standard (ideal) dt to be considered.

flag

a single character used to indicate whether the member is to be considered for composite or noncomposite design:

" - " means consider for noncomposite only,
" * " means consider for composite only,
" + " means consider for composite or noncomposite, and
" / " means do not use (this is used to remove a size from consideration without actually deleting it from the table).

Each label must be unique (i.e., the same label can't appear twice in the table) and it is limited to a maximum of 15 characters.

The sections must be listed in order of cost, least expensive first (generally the lightest). RAM Steel Beam Design selects the first member in the table that satisfies all design requirements and constraints.

The values of emin, emax, dtmin, and dtmax are used by the program to limit the number of hole configurations that are considered.

The following is a sample listing from the RAMSMI.CAS file:

E 
CB12x10 W8x10 W8x10 3.0 5.000 1.750 2.875 2.25 + 
CB15x12 W10x12 W10x12 3.0 5.625 1.875 3.125 2.50 + 
CB12x13 W8x13 W8x13 3.0 6.875 1.750 2.875 2.25 + 
CB15x12/15 W10x12 W10x15 3.0 5.625 1.875 3.125 2.50 * 
CB18x14 W12x14 W12x14 3.0 6.000 2.250 3.750 3.00 + 
CB15x12/17 W10x12 W10x17 3.0 5.625 1.875 3.125 2.50 * 
CB15x15 W10x15 W10x15 3.0 6.875 1.875 3.125 2.50 + 
CB12x15 W8x15 W8x15 3.0 7.250 1.750 2.875 2.25 + 
CB18x14/16 W12x14 W12x16 3.0 6.000 2.250 3.750 3.00 * 
…