This user manual presents a description of the design basis, parameters and theory applied to STAAD.Pro for performing code checks according to NS 3472 ref. [1] and NPD ref. [5]. The code checks include:

• stability check (buckling)
• lateral buckling check
• yield check (von Mises)
• stability check including local plate buckling of un-stiffened pipe walls according to NPD

The code check is available for the following cross-section types:

• wide flange profiles (HEA, HEB, IPE etc.)
• pipe (OD xx ID xx)
• tube (RHS, HUP)
• channel
• angle type (only RA)
• rectangular massive box (prismatic)
• user table (wide flange, I-sections, tapered I, tube, channel and RA angle)

The code check is not available for the following cross-section types:

• Double angles
• Tapered tubes
• Prismatic sections with too few section parameters defined
• Other sections that are not in the "available" list above

Please note the following:

• NS 3472 and NPD code checking covered in this document are available through two separate STAAD.Pro Code check packages.
• This document is not a lecture in use of NS 3472 or NPD. This document explains how, and which parts of, the Norwegian steel codes that have been implemented in STAAD.Pro.
• When L-sections are used, the Code Check requires RA angle definition.
• Weld design is not included in the Norwegian code checks.
• The prismatic section defined in the code check (rectangular massive box) is not identical to the general prismatic profile defined in the STAAD.Pro analysis package.

EDR does not accept any liability for loss or damage from or in consequence for use of the program.