• This tool is intended to design member segments, 即. 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. 假设这些板被大量焊接 (硬件) 用于细长度检查.
• 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. 所有检查仅针对最终极限状态.
• 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 条款 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, 包含:

• 力矩容量: Section moment capacity is calculated using NZS 3404 条款 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.
• 剪切能力: 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. 注意, 新西兰移民局 3404 provides minimal guidance on the design of open sections in minor axis (Z方向) 剪力. 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.
• 压缩能力: All compression capacity calculations assume that the member is loaded concentrically.
• 扭转能力: Torsion capacity calculations checks are not carried out by this calculator.

SkyCiv 快速设计 now supports a range of structural engineering tools for New Zealand Standards. 这包括:

• Steel Design for Members, Bolts and Weld Connections
• Cold Formed Steel Member Design
• 铝制成员设计
• 混凝土柱设计
• Reinforcement Lap Length

You can find all our New Zealand Quick Design tools in the SkyCiv 快速设计 图书馆

SkyCiv 提供广泛的云结构分析和工程设计软件, 包含:

• SkyCiv 快速设计
• AS / NZS 1664 铝设计
• AS / NZS 4600 檩条设计
• 作为 3600 混凝土剪力墙设计
• 作为 2870 住宅楼板等级设计
• AS / NZS 1576 脚手架设计
• 作为 4055 风荷载计算器
• 作为 4100 螺栓组计算器
• 作为 4600 冷弯型钢设计计算器

作为一家不断发展的科技公司, 我们致力于创新和挑战现有工作流程，以节省工程师的工作流程和设计时间.