Details of 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.
Shea rails save huge cost in building construction since rebar stirrups, column capitals, and drop panels are not required. It contribute to formwork and concrete savings and allows a rapid construction schedule.
The main purpose of stud shear reinforcement is to significantly enhance punching strength in thin slabs. It has been applied in numerous buildings all over the world, including the United States and Canada. She rails offer an uncluttered and fast installed alternative to closed stirrups or other unpopular methods of punching strengthening. Post-tensioning or other slab reinforcement can be easily installed among the heads of the vertical studs.
Reduced installation time leads to reduced labor costs and quick turnaround time per pour. By applying the design guidelines of ACI 421.1R99, ShearailsTM can reduce the requirement for shear capitals, considerably minimizing formwork costs and facilitating the application of fly forms. The large 10:1 head-to-stem cross-sectional area ratio offers better anchorage, facilitating complete use of the stud material.
Installation Method For Shear Rail
- Retain at least 2” clear cover to slab edge.
- Arrange end of rail with finished face of column.
- Set shear rail perpendicular to each column face.
- There should be uniform span for number of assemblies on each column face.
- Insert shaft of chair across punched hole in shear rail
- Nail shear rails to formwork to resist movement throughout concrete placement
Tensile Strength: 65,000 psi (450 MPa), minimum
ShearailTM Studs should satisfy or surpass all of the following requirements as per AWS D1.1, ASTM A108 Grades 1010-1020.
- Yield Strength: 51,000 psi (350 MPa), minimum
- Tensile Strength: 65,000 psi (450 MPa), minimum
- Elongation: 20 percent in 2 inches (51mm), minimum
- Reduction of Area: 50 percent, minimum
ShearailTM Rails should satisfy or surpass all of the following requirements as per AWS D1.1, ASTM A108 Grades 1010-1020.
- Yield Strength: 44,000 psi (300 MPa), minimum
- Tensile Strength: 65,000 psi (450 MPa), minimum
- Elongation: 20 percent in 8 inches (203mm), minimum
- Reduction of Area: 50 percent, minimum
