Structural · S-G69JP

Stiffener Plate Schedule and Details for Wide Flange Beams

Materials

Concrete Steel

Elements

Stairs Floors / Slabs Arches Connections / Plates

Connections

Welded Connection

About this detail

Stiffener plate configurations and connection sizes for wide flange steel beams and stair stringers. A schedule specifies plate thicknesses, fillet weld sizes, and single or double-sided plate counts for beam sizes ranging from W12 and smaller up to W36 through W21, as well as stair stringer connections. One-sided or two-sided stiffener plates are welded to the wide flange section web, with specific weld sizes of one-eighth, three-sixteenths, and one-quarter inch. Notes instruct to use this detail where plates or stiffeners are shown but not detailed, to limit welds to American Welding Society minimums and schedule sizes, and to coordinate locations with architectural drawings.

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