CAN/CSA-S16-01/ S16-09 / S16-14

The bending capacity of Class 3 is considered to be the compression flange section modulus multiplied by the design yield strength.

As described in the RAM Manager documentation the engineer can specify whether hollow structural sections are of Class C (cold-formed non-stress-relieved) or Class H (hot or cold-formed stress-relieved). The engineer can also indicate whether built-up flange sections are comprised of milled plate or flame cut plate. These designations affect the axial capacity of the HSS and flange sections as specified in Section 13.3.1 of the design specification.

BS 5950

The columns are designed according to the rules of Simple Construction described in section 4.7.7 of the BS5950 specification. In the event that the lateral torsional buckling capacity is to be calculated, lambda is always taken as 0.5L/ry.

The bending capacity of Class 3 is considered to be the compression flange section modulus multiplied by the design yield strength.

As described in the RAM Manager documentation the engineer can specify whether built-up flange sections are comprised of milled plate or flame cut plate. This designation affects the axial capacity of the flange sections as specified in footnote 2 of table 25 in the BS 5950 specification.

AS 4100

A following assumptions and criteria have been made in the implementation of the AS 4100 design code.

The program conservatively assumes the unbraced column length is not rotationally restrained at the ends of the segment as discussed in 5.4.3.4 and 5.6.3(3).

No torsion is considered in the design.

Loads are assumed applied through the column shear centers at their ends.

Rolled sections other than tubes and pipes are assumed to be Hot Rolled (HR) per table 5.2. Tubes and pipes are assumed cold formed (CF) per Steel Designer Handbook. All welded sections must be designated as either Heavy Welded (HW) or Light Welded (LW) as selected by the user in the RAM Manager.