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.
US Patents #6,612,087 & #7,104,024
An ICC-ES Evaluation Report for DriftClip DSLB is available. Click here to view the report
Step Bushing Technology
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.
Blast & Seismic Design Data
- Application Image
- Nomenclature/Order Info
- Allowable Loads
- Material Composition
DriftClip DSLB is classified by multiplying stud depth by 100.
Example: 6” stud
One row of bridging is recommended at a maximum distance of 12” from DriftClip to resist torsional effects.
1 For LRFD Design Strengths refer to ICC-ESR-2049 (p33).
Steel: ASTM A1003/A1003M Structural Grade 50 (340) Type H, ST50H (ST340H): 50ksi (340MPa) minimum yield strength, 65ksi (450MPa) minimum tensile strength, 97mil minimum thickness (12 gauge, 0.1017” design thickness) with ASTM A653/A653M G90 (Z275) hot dipped galvanized coating.
The attachment of DriftClip to the primary structure may be made with a PAF, screw/bolt anchors or weld and is dependent upon the base material (steel or concrete) and the design configuration.
As a design reference for the structure attachment, follow ICC-ESR-3332 for allowable loads for screw fasteners of ¼”- 20 size with various plate thickness.
|Pullout 1/4" - 20 Screws* (lbs)|