• This tool is intended to design member segments, e.g. portions of a member between points of full, partial or lateral restraint. Flexure and compression design lengths can be specified by the user.

• Members are designed about their principal axes for bending moment checks / compression buckling checks, and geometric axis for shear force checks. User loading inputs will be converted between geometric and principal axes (based on the angle of rotation to principal axes) as required for capacity checks.
• Selecting a Custom section assumes that the section is fabricated out of structural steel plate complying with AS/NZS 3678. Ces plaques sont supposées être fortement soudées (Matériel) pour les contrôles d'élancement.
• Shear and flexural loading is assumed to be applied through the shear centre of the section. Any torsional effects due to eccentric loading are not considered.
• Axial loading is assumed to be applied concentrically to the section. Any additional bending effects due to eccentric loading are not considered.
• This tool does not carry out serviceability or deflection checks. Tous les contrôles concernent uniquement l'état limite ultime..
• Section yield strength is taken as the lesser of flange and web yield stress, unless noted otherwise.
• This calculator only supports unequal angles with a longer vertical leg.

Sections are classified for major and minor principal axis bending according to NZS 3404 Clause 5.2.2. The governing element within a section is used to assign its overall classification.

This tool carries out a comprehensive set of section and member capacity checks in accordance with NZS 3404, y compris:

• Capacité instantanée: Section moment capacity is calculated using NZS 3404 Clause 5.2.1 for the principal Z and Y axis in both directions of bending. To determine the major axis member bending moment capacity (Mb.z), it first needs to be determined if the member satisfies conditions for Full Lateral Restraint in accordance with Clause 5.3.2. If a member achieves Full Lateral Restraint, its member bending moment capacity (Mb.z) is equal to the section moment capacity.
• Capacité de cisaillement: Shear capacity is always checked about a sections geometric axes (Vertical Y and Horizontal Z). Loads will be converted into geometric axes direction where required. Remarque, NZS 3404 provides minimal guidance on the design of open sections in minor axis (Direction Z) de cisaillement. The calculations adopted by this module are based on available research and engineering logic. Care should be taken when designing sections subject to high minor axis shear loading.
• Capacité de compression: All compression capacity calculations assume that the member is loaded concentrically.
• Capacité de torsion: Torsion capacity calculations checks are not carried out by this calculator.

SkyCiv Quick Design now supports a range of structural engineering tools for New Zealand Standards. Ceci comprend:

• Steel Design for Members, Bolts and Weld Connections
• Cold Formed Steel Member Design
• Conception de membres en aluminium
• Conception de poteaux en béton
• Reinforcement Lap Length

You can find all our New Zealand Quick Design tools in the SkyCiv Quick Design Bibliothèque

SkyCiv propose une large gamme de logiciels d'analyse structurelle et de conception technique dans le cloud, y compris:

• SkyCiv Quick Design
• AS / NZS 1664 Conception en aluminium
• AS / NZS 4600 Conception des pannes
• AS 3600 Conception de murs de cisaillement en béton
• AS 2870 Dalle résidentielle sur conception de niveau
• AS / NZS 1576 Conception d'échafaudages
• AS 4055 Calculateur de charges de vent
• AS 4100 Calculateur de groupe de boulons
• AS 4600 Calculateur de conception en acier formé à froid

En tant qu'entreprise technologique en constante évolution, nous nous engageons à innover et à remettre en question les méthodes de travail existantes pour faire gagner du temps aux ingénieurs dans leurs processus de travail et leurs conceptions.