How to: Shear force transmission for load-bearing exposed precast concrete façades

For optimum shear force transmission, load-bearing precast concrete sections can be connected to the internal structure using Egcobox^® thermal breaks.

A reduction in thermal bridging is achieved by thermally isolating the façade components from the internal structure using the Egcobox^® connecting elements. In addition, optimum shear force transmission can be secured with the statically effective Egcobox^® isolating element. For a cost-effective solution, Egcobox^® units can be manufactured to suit structural requirements of this type of application.

• Development of the Egcobox^® cantilever connectors as a bespoke solution for load and reinforcement layout.
• Production of the Egcobox^® units for the precast plant.
• Assembly of the precast sections with corresponding preassembly of the Egcobox^® units.
• On-site placement of the slab formwork for the in-situ concrete floor.
• To enable the façade panels to be installed after the frame has been cast, a recess can be created in the floor slab using Stremaform^® shuttering to receive the Egcobox^® reinforcement bars. Using the Stremaform^® shuttering provides the characteristics of an 'indented joint' according to EC2.
• Mounting of the façade sections – securing the position with Egcodubel shear force dowel at the bottom of the elements and with the Egcobox^® units placed into the recesses in the slab - which are subsequently concreted.
  

MAX FRANK provides static proofs and verifiable documents for special, customer-specific solutions.