FILIGRAN TRÄGERSYSTEME

Filigran punching shear reinforcement newly assessed

The FDB Filigran punching shear reinforcement consists of spatial welded reinforcement elements with optimized geometry. The punching shear resistance of flat slabs is more than doubled by using FDB, featuring an increase by a factor of 2.1 of a reinforced concrete slab without punching shear reinforcement. According to the manufacturer, this increase factor is higher than that of other punching shear systems. This is the outcome of a comparison with stirrups in accordance with current design standards and double-head studs according to European Technical Assessment (Fig. 1).

The maximum...

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Issue 01/2021 FILIGRAN TRÄGERSYSTEME

Punching shear reinforcement with increased bond resistance

Flat slabs with lattice girders as semi-precast construction system feature horizontal composite joints between the semi-precast concrete slabs and the in-situ concrete topping. Both the punching...

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Issue 11/2021 Monday, 15th November → Innovation workshop (6)

New European Assesment for punching shear reinforcement

Flat slabs made of reinforced concrete are supported directly on columns. The total height of the slab construction is reduced and the formwork effort is simplified because beams are done away with....

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Issue 02/2021

Punching shear reinforcement in crosswise arrangement – Effective or impermissible?

Stud rails used as punching shear reinforcement in flat slabs are arranged radially in Germany. A crosswise arrangement in the layout of the reinforcement elements, as it is common practice in North...

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Issue 12/2013

Flat floors with semi-precast elements in accordance with Eurocode 2

Flat floors composed of precast slabs with lattice girders and a structural concrete topping require specifically designed punching shear reinforcement systems and structural rules and guidelines for...

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Issue 02/2014 Punching shear tests on precast concrete slabs lead to European Technical Approval (ETA)

With projecting loops to peak load –

Flat slabs made as precast reinforced-concrete slabs with lattice girders and an effective in-situ concrete topping prove to be cost-efficient. Nevertheless, such flat slabs – in contrast to line...

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