Structural · S-AMBSM

Deck Parallel and Perpendicular to Beam Angle Bracing

Materials

Elements

Beams Floors / Slabs Decks Bracing Connections / Plates

Connections

Braced Frame Connection Bracing Connection Welded Connection Bolted Connection Shear Stud / Composite Deck Attachment Embed Plate

About this detail

Angle brace connections frame into steel beams supporting a concrete fill over metal deck assembly, in both parallel and perpendicular orientations. An L6x6x1/2 angle brace is secured with four 3/4-inch diameter Nelson studs located in the troughs of the steel deck, while a three-eighths-inch thick plate connects the brace with two 7/8-inch diameter A325N bolts at both ends unless otherwise noted. At frame beams, full-height stiffener plates are required with a width sized for two bolts, utilizing ten-inch minimum total weld lengths and 3/16-inch fillet welds on two sides. The angle brace may be omitted where an exterior beam or frame beam occurs as indicated on the plan. Angle brace sizes vary based on span length, requiring L4x4x3/8 for spans under six feet and L6x6x3/8 for spans between six and ten feet. Three-eighths-inch plates may be field welded to the beams at the contractor's option.

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