Steel column section dimensions do not conform to Width-to-Thickness Ratios.

This message is created by specifying the element name and floor on which it is located at the beginning of the report.

For example,

SC001 BASE STORY Section dimensions do not conform toTBDY Table 9.3.

Width-to-thickness ratios of highly ductile beams and moderately ductile beams are checked in accordance with AISC 341-16 Table D1.1 and TBDY Chapter 9. Limit values of Width-to-thickness ratios λ _hd or λ _md are given in AISC 341-16 Table D1.1.

For detailed information, you can review the titles below.

Width-to-Thickness Ratios for SMF per AISC 341-16 with ideCAD

Limiting Width-to-Thickness Ratios for Compression Elements for Moderately Ductile Members per AISC 341-16 with ideCAD

Solutions:

• The cross-section of the steel element whose name and floor are given can be changed.

• Steel beam cross-section selection can be made to reduce the header width/thickness or body height/thickness ratio.

• If it is possible, a moderate ductility level can be selected.

AISC 341-16 Table D1.1 is given below.

Limiting Width-to-Thickness Ratios for Compression Elements for Moderately Ductile and Highly Ductile Members

Limiting Width-to-Thickness Ratios for Compression Elements for Moderately Ductile and Highly Ductile Members
Description of Element	Width-to- Thickness Ratio	Limiting Width-to-Thickness Ratio		Example
		λhd Highly Ductile Members	λmd Moderately Ductile Members
Flanges of rolled or built-up I-shaped sections, channels and tees; legs of single angles or double-angle members with separators; outstanding legs of pairs of angles in continuous contact	b/t			Open
Flanges of H-pile sections per Section D4	b/t	not applicable		Open
Stems of tees	d/t
Walls of rectangular HSS used as diagonal braces	b/t