Steel brace design to BS 5950

Tekla Structural Designer
Tekla Structural Designer

Steel brace design to BS 5950

Design method

Unless explicitly stated all brace calculations are in accordance with the relevant sections of BS 5950-1:2000 (Ref. 2).

A basic knowledge of the design methods for braces in accordance with the design code is assumed.


No classification is required for braces in tension.

Braces in compression are classified according to Clause 3.5 as either: Class 1, Class 2, Class 3 or Class 4.

Class 4 sections are not allowed.

Hollow sections

The classification rules for SHS and RHS relate to “hot-finished hollow sections” only (“cold-formed hollow sections” are not included in this release).

Axial Tension

An axial tension capacity check is performed according to clause 4.6.

Axial compression

An axial compression capacity check is performed according clause 4.7.

Compression buckling

If axial compression exists, the member is also assessed according to clause 4.7 with all relevant sub-clauses.

The default effective length in each axis is 1.0L.

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