Adds values from the German National Annex—titled DIN EN 1993-1-1:2005—for use with Eurocode 3, or EN 1993-1-1:2005. The NA document makes small changes to the base document.

The clauses/sections in EN 1993-1-1:2005 (hereafter referred to as EC-3) that require additional clauses from the German National Annex (hereafter referred to as DE-NA) are described in the following sections.

Refer to the basic code (EC3) for a description of these clauses. The sections below refer to the corresponding clauses in the DE-NA.

The following clauses are not implemented in STAAD.Pro:

Clause 6.3.2.4(1) B – Slenderness for flexural buckling

STAAD.Pro does not use this clause for design per EC-3. Therefore, this clause is ignored for the German National Annex.

Clause 6.3.2.4(2)B – Modification factor "kfl"

STAAD.Pro does not use this clause for design per EC-3. Therefore, this clause is ignored for the German National Annex.