TABLE 20.10 Recommended LRFD Guidelines — Limiting Width-to-Thickness Ratios [37]

Description of element

Width-to-thickness ratio, b/t

Limiting width-to-thickness ratio,

Limiting ratio, k

Flanges of I-shaped sections and channels in compression Webs in combined flexural and axial compression

Hollow circular sections (pipes)

Unstiffened rectangular tubes

Longitudinally stiffened plates in compression b(/2tf hc/tw

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