Cold-formed steel rafter to AISI S240-20 B4.2, S100-16
Cold-formed steel rafters: sloped C-section with thrust at the heel, tie and heel screws, overhang, bending with axial force, shear, web crippling and deflection (AISI S240 and S100).
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What you get
From the inputs to a finished cold-formed steel rafter calculation
The applicable checks, step by step
Every check to AISI S240-20 B4.2, S100-16 with its equation, the values that go into it, the result and the code section, and the governing case up front. Results update as you type.
A calculation report a reviewer can follow
Inputs, load combinations, every check with its result and reference, and the governing case, in a clear PDF with your title block.
Drawings
Where the calculation has a shape to draw: elevations, sections and the diagrams, on a sheet with your title block, as PDF or DXF.
Your units, your method
US or metric units at any time, LRFD or ASD where the code offers both; the report follows.
Verification
How the cold-formed steel rafter is tested
Against published examples and hand calculations from the code equations, on every change. The method and the sources.
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