They are typically made of steel and consist of a series of studs or rails anchored in the concrete, providing additional strength and stability against shear forces.
The JORDAHL® Punching Shear Reinforcement JDA is specifically designed for concrete floor slabs and foundation slabs to effectively distribute punching shear loads at column or pile locations. To aid designers in selecting and positioning the appropriate reinforcement, the JORDAHL® EXPERT design software for punching shear reinforcement JDA is available in the downloads section of this product page. The JDA shear rail reinforcement system has been rigorously evaluated and certified under the UK Technical Assessment UKTA-0836-22/6150 and the European Technical Assessment ETA-13/0136.
Key Features:
- Double-Headed Reinforcement Anchors: The JDA system is composed of multiple double-headed reinforcement anchors that are factory-welded to carrier rails. This ensures precise and easy positioning within the concrete.
- Variety of Configurations: Typically supplied in configurations ranging from two to five stud rails, JDA units can be installed from above into the concrete structure.
- Construction Efficiency: By eliminating the need for drop beams or closely spaced traditional link reinforcement, the JDA system accelerates the construction process and reduces reinforcement congestion within the concrete.
Applications: JORDAHL® Punching Shear Reinforcement JDA is ideal for:
- Flat Slab Concrete Construction: Enhances the shear capacity of flat slabs, preventing punching shear failures.
- Precast Filigree Slabs: Provides robust shear reinforcement in precast concrete elements, ensuring long-term structural stability.
Benefits:
- Precision and Ease of Installation: The factory-welded design allows for quick and accurate placement in the concrete, minimizing construction errors.
- Time and Cost Savings: By streamlining the reinforcement process and reducing the need for additional structural elements, the JDA system saves both time and money on construction projects.
- Certified Performance: With certifications from both UK and European technical assessments, the JDA system guarantees reliable performance and compliance with industry standards.
Shear rails are indispensable components in modern construction, offering robust solutions to enhance the shear capacity of various structural elements. Their application in flat slabs, foundations, bridge decks, and other critical areas ensures that structures can withstand high shear forces, improving overall stability and safety. With their numerous features and benefits, shear rails are a valuable addition to any construction project, providing long-term performance and cost savings. As construction techniques continue to evolve, the use of shear rails will remain a cornerstone of structural engineering, contributing to the development of safer and more resilient buildings and infrastructure.
For more information on JORDAHL® Punching Shear Reinforcement JDA, including design software and technical documentation, please refer to the downloads section of this product page.