Seated Connection Design (Unstiffened / Stiffened)

Design standard: AISC - AISC Steel Construction Manual 16th Ed. Part 10, Unstiffened and Stiffened Seated Connections; ANSI/AISC 360-22 J3, J4, J7, J10

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Design Parameters

Lengths accept decimals or fractions, e.g. 3-1/2 or 13/16.
Not in the section catalogue: 0 takes kdes = tf (conservative for web local yielding).

Stiffener

AISC Manual Part 10: the seat carries the whole reaction; a top angle (or the optional side angle) is required for stability and is not sized for load. A 1/4 in. angle with a 4 in. leg is generally adequate - a thicker angle restrains the beam end rotation.

AISC Shapes Database v16.0. ASTM A992 (W), A572 Gr 50, A36 (AISC Manual Table 2-4); bolts ASTM F3125 Grades A325 / A490.

Elevation

Section

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