Structural · S-ZJTTN

Typical Beam Web Stiffener Plate and Connection Detail

Materials

Steel

Elements

Beams Connections / Plates

Connections

Welded Connection Bolted Connection

About this detail

A structural steel connection utilizes beam web stiffener plates for shallow beams such as W6, C6, and smaller shapes. A connection plate is bolted to the beam web, with plate thicknesses matching the beam web and varying from three-eighths inch minimum to one-half inch maximum, and up to three-quarters inch maximum for W40 sections. Stiffener plates feature chamfers at the beam fillets left unwelded at the fillets, with fillet weld sizes specified between three-sixteenths inch and five-sixteenths inch. Partial depth and full depth stiffener plates are provided where noted to reinforce the beam web and flanges.

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