Torsion - Cross-sectional Inputs

Torsion

Cross-sectional Inputs

All references to EN 1995-1-1:2004 unless otherwise stated.

This tests a cross-section in torsion according to Clause 6.1.8.

Timber type

The timber type of the cross-section. See the timber database section for the types supported by Teretron.

Cross-section type

The geometry type of the cross-section.

Width b

The width of a rectangular cross-section, in mm.

Depth h

The depth of a rectangular cross-section, in mm.

Diameter d

The diameter of a circular cross-section, in mm.

Torsion constant reduction

The torsion constant reduction ΔW_p refers to reductions in the nominal torsion constant that have to be taken into account in the calculation of the member strength (e.g. holes from fasteners) according to Subclause 5.2(2).

It should be given as a percentage of the total nominal torsion constant.

Contribution of the load distribution system in the member strength properties

Includes factor k_sys for the calculation of the member strength, according to Clause 6.6, for a member that functions as part of a continuous load distribution system.

Note that Subclause 6.6(3) states that the strength verification for a continuous load distribution system should be carried out assuming short-term load duration.