DriftClip® DSLB Bypass Slab

Product Application

DriftClip® DSLB is available to accommodate vertical deflection and lateral drift requirements. Step Bushings pre-installed in vertical slots allow up to 2” vertical deflection (1” up and down). Horizontal slots accommodate 2” lateral drift (1” left and right--in-plane), with Step Bushings also pre-installed during the manufacturing process. Load tables are provided for attachment to stud. If more than 2” lateral drift is required, contact TSN engineering for more information.

Material Composition

Steel: ASTM A653/A653M, Grade 50 (340), 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, G-90 (Z275) hot-dipped galvanized coating.

Standard DSLB thickness is 97mil (0.1017” design thickness). The attachment of DriftClip to the primary structure is dependent upon the base material (steel or concrete) and the design configuration, and is the responsibility of the Structural Engineer of Record.

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  • As a design reference, follow ICBO-ES Report #4780 for allowable loads for screw fasteners of ¼”- 20 size with various plate thickness.
Section Thickness
Pullout 1/4" - 20 Screws* (kips)
0.0566"
0.206
0.0713"
0.260
0.1017"
0.500
1/8"
0.765
3/16"
1.045
1/4"
1.215
5/16"
1.275

* Limited by the pullover strength of DSLB clip around the head of the screw fastener.
An ICC-ES Evaluation Report for DriftClip DSLB is available.
Click here to view the report
A Los Angeles Research Report for DriftClip DSLD, DSL, DSLB, DSLS, DriftTrak DTSL and DTSLB Series is available. Refer to LARR #25781. Click here to view the report.
DriftClip DSLB Nomenclature

DriftClip DSLB is classified by multiplying stud depth by 100.

Example: 6” stud
Designate: DriftClip DSLB600.

One row of bridging is recommended at a maximum distance of 12” from DriftClip to resist torsional effects.

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DriftClip DSLB Value
  • Positive, load rated mechanical attachments
  • Manufactured from mill-certified, 50ksi steel
  • Step Bushings pre-installed for accurate placement
  • Rated screws provided for attachment to stud web
  • Load transferred from stud web
  • Meets all building code criteria
  • Adaptable for multiple configurations

  DriftClip DSLB Installation  
  1. Attach DriftClip DSLB to structure with specified fasteners through step bushings.
  2. Attach to stud with #12 provided screws through step bushings.
 
  Quantity / Order Information
Designation
Qty/Box
Lbs/Box
Pcs/Skid
Lbs/Skid
DSLB362/400
50
36
2250
1620
DSLB600
25
35
750
1080
DSLB800
25
40
1125
1800
Allowable (Unfactored1) Loads
DriftClip
Series
Stud
Thickness
Mils (ga)
Fy
(yield)
Stud (ksi)
Allowable (Unfactored1) Loads
Fastener Pattern 1
Fastener Pattern 2
F2 w/ 2 #12
Screws (kips)
F2 w/ 3 #12
Screws* (kips)
F2 w/ 2 #12
Screws (kips)
F2 w/ 3 #12
Screws* (kips)
DSLB
Clip is 12ga
(97mils)
33 (20)
33
0.377 
0.565
0.377
0.565
33 (20)
50
0.544
0.817
0.544
0.572
43 (18)
33
0.561
0.841
0.561
0.572
43 (18)
50
0.810
0.917
0.572
0.572
54 (16)
33
0.917
0.917
0.572
0.572
54 (16)
50
0.917
0.917
0.572
0.572
68 (14)
50
0.917
0.917
0.572
0.572
97 (12)
50
0.917
0.917
0.572
0.572
Fastener Pattern 1 replicates a condition of out-of-plane wind or seismic force with no vertical live load deflection or in-plane drift.
Fastener Pattern 2 replicates a condition of out-of-plane wind or seismic force with full vertical live load deflection and full in-plane drift.

1 For LRFD Design Strengths refer to ICC-ESR-2049.

* Three screws not applicable to DriftClip DSLB362

  • Design loads are for attachment of DriftClip DSLB to stud only
  • Attachment to structure engineered by others
  • Allowable loads have not been increased for wind, seismic, or other factors
  • Two #12 screws are provided with each DriftClip DSLB for attachment to stud. If loads justify use of a third screw, TSN will provide 3 slots and 3 screws with each clip

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  Load Direction 

Load tables reflect horizontal loads (F2).

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  Oct 2008  

 


          Products are available through local distribution.
Build #: 27