Shear Reinforcement
Shear Rail Reinforcement
Shear rails are a cost-efficient solution to shear transfer at column/slab connections – eliminating conventional solutions, such as rebar stirrups, column capitals, and drop panels. Our shear rails are fabricated in accordance with applicable industry standards and delivered with our post-tensioning tendons as part of a comprehensive package of products and services for our customers.
Technical Data
| Stud Shank Diameter | Head Diameter | Shank Area | Rail Width | Rail Depth |
| 3/8 | 1.19 | 0.11 | 1.00 | 3/16 |
| 1/2 | 1.58 | 0.2 | 1.25 | 1/4 |
| 5/8 | 1.98 | 0.31 | 1.75 | 5/16 |
| 3/4 | 2.37 | 0.44 | 2.00 | 3/8 |
Material Specifications
| Nelson® PSR Studs (Minimum Values) | |
| (per AWS D1.1, ASTM A108 Grades 1010-1020) | |
| Yield Strength | 51,000 psi (350 MPa) |
| Tensile Strength | 65,000 psi (450 MPa) |
| Elongation | 20% in 2 inches (51 mm) |
| Reduction of Area | 50% |
| Rail (Minimum Values) | |
| (per AWS D1.1, ASTM A108 Grades 1010-1020) | |
| Yield Strength | 44,000 psi (300 MPa) |
| Tensile Strength | 65,000 psi (450 MPa) |
| Elongation | 20% in 8 inches (203 mm) |
| Reduction of Area | 50% |
Installation of Shear Rail
- Maintain a minimum of 2” clear cover to slab edge
- Align end of rail with finished face of column
- Place shear rail perpendicular to each column face
- Equally space required number of assemblies on each column face
- Insert shaft of chair through punched hole in shear rail
- Nail shear rails to formwork to prevent movement during concrete placement
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STRUCTURAL TECHNOLOGIES’ post-tensioning specialists are committed to bringing innovation to complex projects. Our in-house design professionals have extensive experience in structural design and are active members of technical organizations such as the Post Tensioning Institute (PTI) and the American Concrete Institute (ACI).
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