October 2009

_{Keywords: Composite slab; Process for the manufacture of autoclaved concrete and aerated concrete and equipment for carrying out the process; Process for mounting elastic sealing rings on profiled rings and equipment for carrying out the process;Structural unit for punching shear reinforcement; Adjustment device for precast concrete units mini; Boxes for bulk materials consisting of interconnected molded blocks – “light version”; Drain trench}

Patents from Issue 10/09

Issue 02/2017 Flat slabs and foundations

New punching shear reinforcement systems

The structural design of flat slab systems is usually governed by the punching shear resistance of the slab. To achieve a sufficient punching shear resistance at reasonable slab thickness, shear...

Issue 10/2018 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,...

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....

Issue 02/2014 New design tools for practice

Punching shear –

While DIN EN 1992-1-1 and the national annex of Germany treat punching shear design for in-situ concrete slabs and centrically loaded footings in great detail [1, 2], joints between semi precast...

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...

BFT 10/2009