Slenderness calculation for double angles as per the IS800-2007 is incorrect when Iy > Iz


 Applies To 
 Product:STAAD.Pro
First Affected Version:20.07.11.33
 Found in Version:20.07.11.50
Released in Version:20.07.11.70
Environment:All
 Area: Design
Subarea:IS 800 2007
 Issue #:376915

Problem Description

Slenderness calculation and hence compression capacity caclulation for double angle sections as per IS800:2007 is incorrect when Iy>Iz.

Steps to Reproduce

  1. Design a double angle section as per IS800-2007
  2. Check the slenderness ratio reported in the analysis output file.

Workaround

None

Solution

This has been addressed in 20.07.11.70

See Also