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DBC Drywall Bridging Connector

DBC

Work smarter, not harder
Patented design allows for one- or two-screw installation of the DBC, significantly reducing labor and material cost. The first and only connector load rated for 3/4" u-channel, the DBC joins the SUBH line of bridging connectors tested as a system, ensuring that published design capacities capture the influence of stud web depth and thickness.

Key Features

  • Most applications require only a single screw
  • Designed for 3/4" u-channel to fit smaller web knockouts common to drywall studs
  • Compatible with drywall stud depths of 3 5/8" and 6" with 1 1/2" wide knockouts

Material

  • 33 mil (20 ga.) carbon steel

Finish

  • Galvanized (G90)

Installation

  • With 3/4" x 54 mil (16 ga.) u-channel installed through the stud web knockouts, insert the DBC2.5 through the knockout so that the DBC slots engage the stud web and the DBC flanges engage the u-channel as shown in the illustration
  • Use the specified number of #8 screws to fasten the DBC to the u-channel

Ordering Information

  • DBC2.5-R200 (Bucket of 200)

Related Literature

Load Tables

DBC Bridging Connector Strength Allowable Loads

  1. Allowable loads are for use when utilizing Allowable Stress Design methodology. For LRFD loads, multiply the ASD tabulated values by 1.6.
  2. Min. fastener quantity and tabulated values – fill round hole (1 screw total); Max. fastener quantity and tabulated values – fill round and triangle holes (2 screws total).
  3. EQ — equivalent, DW — drywall, STR — structural.

Design Example:

Laterally loaded C-stud
Laterally loaded C-stud
Given
  • 600S125–18 (33 ksi) studs at 24" o.c., 10 ft. tall
    Mid-point bracing (5' o.c.)
    Distance from shear center to mid-plane of web, m = 0.408 in.
    (SFIA Technical Guide Version 2012.101)
  • Lateral load = 5 psf
Laterally-Loaded Stud Design
    ASD Design load tributary to brace:
    W = (5 psf)(2 ft.)(5 ft.) = 50 lb.
    Required bracing force (AISI S100 Eq. D3.2.1-3):
    PL1 = - PL2 = 1.5(m/d)W = (1.5)(0.408 in./6 in.)(50 lb.) = 5.1 lb.
    Torsional moment:
    Mz = PL1d = - PL2d = (5.1 lb.)(6 in.) = 30.6 in.- lb.
    From Allowable Loads table above, for 6"-18 mil stud:
    => Select DBC2.5 with Min. fasteners ((1) #8)
    Allowable torsional moment = 65 in.- lb. > 30.6 in.- lb. OK

Code Reports

Part IAPMO UES ER ICC-ES ESR City of Los Angeles State of Florida
DBC No code listing. Please contact us for test data.
DBC2.5 No code listing. Please contact us for test data.

Drawings

Part Orthographic Perspective
DBCNone None
DBC2.5
DBC2.5 front view
DWG DXF
DBC2.5 right view
DWG DXF
DBC2.5 top view
DWG DXF
DBC2.5
DWG DXF