JORDAHL® Punching Shear Reinforcement JDA

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Product description

The JORDAHL® Punching Shear Reinforcement JDA are used for the transmission of high shear forces in flat floor applications with reduced requirements for formwork and reinforcement and for optimum use of space. They can also be used for foundations and consist of double-headed anchors connected by a strip.


  • In comparison to floor slabs without studrails, the punching shear resistance and load-carrying capacity can be clearly increased
  • Reduced requirements for formwork
  • Installation possible from the top and bottom
  • Can be used for slabs from a thickness of 18 cm
  • Quick and simple installation
  • Lower construction height of the ceiling due to higher load-carrying capacity than conventional reinforcement technology
  • Level ceiling underface
  • Can be used for all support positions and support forms


Customized solutions:

Versatile fabrication possible depending on static requirements.


European Technical Approval ETA-13/0136


Double-headed anchor: made of B500B
Strip: made of structural steel


Intuitive software that for example takes into consideration supports, reinforcements and recesses and provides an automatic verifiable calculation. Free download on

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