Lateral-torsional restraint for members

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Lateral-torsional restraint is available in IDEA StatiCa Connection and IDEA StatiCa Member. The main application is for members that are restrained by floor, trapezoidal sheeting, or cladding.

This feature is useful especially to determine lateral-torsional buckling for members in the Member application and to avoid unwanted torsional deformation and stress of eccentrically loaded members in the Connection application.

Both symmetric or asymmetric members are loaded in the center of gravity but because the deformation of the top flange is typically restrained, torsion is neglected. Such members can now be analyzed correctly.

A manufacturing operation has been added to Connection

The length of the restraint can be either full or partial.

The restraint can be set as continuous or discrete.

And the stiffness of the torsional or/and lateral restraint can be defined independetly as free, rigid or with a specific value and this can be set independently for torsion and lateral buckling.

The operation Lateral-Torsional Restraint has been added to the Member application as well.

Available in both Expert and Enhanced editions of IDEA StatiCa Steel.

Introduction video of the Lateral-Torsional Restraint at the member:

Related articles

Lateral-torsional restraint

Release notes IDEA StatiCa Steel & Concrete 22.0

Lateral-torsional buckling of a beam with transverse stiffeners

Relative positions of members