DPLS2 - Bypass Slab Drift Strut

The DPLS2 slide strut attaches the by-pass curtain wall stud to the building structure, allowing for vertical deflection and lateral drift. The inserts are pre-installed to the strut making installation quick, easy, and efficient. Patent No. 7478508-B2

Features & Benefits

  • Insert allows for 2” total vertical deflection and 2” lateral drift
         - Greater than 2” are available
  • Loads based on #10 screws 
         - Screws are provided
  • Large insert pieces for easy installation
  • Pre-punched guide holes
  • Transfers horizontal loads into structure

Material Composition

  • Mill certified steel 
  • ASTM A653/A653M 
  • Strut
         - Material thickness: 114 mil
         - Yield strength: 57 ksi
         - Tensile strength: 65 ksi
         - G90 galvanized coating
  • Insert
         - Material thickness: 127 mil
         - Yield strength: 57 ksi
         - Tensile strength: 65 ksi
         - G90 galvanized coating
 

Allowable Loads

Model No. Stud Thickness F1 Allowable Loads (lbs)
Mils Gauge Fy (ksi) 2 #10 Screws* 3 #10 Screws*
DPLS2 33EQS 20 57 433 649
43EQS 18 57 683 1025
33 20 33 353 530
43 18 33 526 789
54 16 50 1068 1602
68 14 50 1510 1950
97 12 50 1950 1950
118 10 50 1950 1950
Maximum Allowable Clip Load 1950 1950

* Number of screws per insert

Table Notes

  1. Allowable loads have not been increased for wind, seismic, or other factors.
  2. Screw spacing and edge distance shall not be less than 3 x d. (d=nominal screw diameter)
  3. The allowable loads are based on the steel properties of the members being connected, per AISI Section E4.
  4. When connecting materials of different thicknesses or tensile strength (Fu), the lowest applicable values should be used.
  5. Screw shear capacities are based on allowable strength design (ASD) and include a safety factor of 3.0.
  6. Penetration of screws through joined materials should not be less than 3 exposed threads. Install and tighten screws in accordance with the screw manufacturer's recommendations. 
  7. Applied loads may be multiplied by ¾ for seismic or wind loading, per AISI A 5.1.3
  8. Loads are for attachment of DPLS2 Drift Strut to stud only. It is the responsibility of the designer to check the bending in the other leg of this strut and its connection to the structure members, depending on the direction of forces.
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Quantity / Order Information

Model No. Left / Right Handed Width Qty / Bucket lbs / Bucket
DPLS2-1200 (L) or (R) 12" 10 44
DPLS2-1500 (L) or (R) 15" - -
DPLS2-1800 (L) or (R) 18" - -
DPLS2-2000 (L) or (R) 20" - -

All DPLS2 struts include inserts. Additional lengths available upon request.