PSB Rails are basically used for two different Application Cases:
1. Punching Reinforcement ("PSB"):
The Peikko PSB punching reinforcement is a powerful and economical solution of the punching reinforcement issue in punctiform supported flat slabs with concentrated load induction.
2. Shear Force Reinforcement ("PSB-S"):
According to DIN 1045-1:2008-08, shear force load bearing capacity must be demonstrated for each cross section of reinforced concrete building elements. As the load bearing capacity of non-reinforced cross sections was significantly lowered vs. old DIN 1045:1988-07, shear force reinforcement is used more and more often in ceiling and foundation slabs.
Dimensioning:
PSB punching reinforcement is dimensioned according to various approvals (German Z-15-1-231, Poland AT-15-7688/2008...). Therefore we recommend our user-friendly dimensioning software Peikko Designer. Download it from this website. Please contact our local Technical Support at any time for information or dimensioning questions.
Design variants:
PSB type
Double headeds studs, assembled by a flat bar as spacing bar. Applicable for top and bottom installation. Available as Standard elements (2 and 3-stud rail) or as Regular elements (2-10 stud rail).
PSB-F type
Consists of a set of components: Double headed studs connected by preassembled plastic connectors to a flat bar as spacing bar having slotted holes in it. Applicable for element slabs and preferable as space saving stock solution. Available for standard elements (2 and 3-stud rail).
Installation variants:
Cast-in-situ concrete variant for top-installation. For floor systems in cast-in-situ concrete, top-installation of the PSB elements is recommended. Due to that the entire remaining slab reinforcement can be installed prior to installation of the punching reinforcement elements. By means of using the PSB-Q Cross connectors the proper mounting position can be ensured.
Bottom installation variant. As alternative to the installation from the top, it is also possible to install PSB punching reinforcement elements from the bottom by means of Peikko spacers available for concrete coverings from 15-45 mm prior to installing the slab reinforcement.
Precast variant. The multi-component type PSB-F for the use in precast factories. The partial structure enables the easy and fast installation of the punching reinforcement in the preferred phase of the automated production process without disturbing it. PSB-F rails are mounted by means of Peikko PSB spacers (available for concrete coverings from 15-45mm) in required height on the shuttering table in defined positions marked by the plotter. Lower bending reinforcement and the lattice girders can be positioned freely by reinforcement robot. The reinforcement work is easy, as the studs are not yet in place. When reinforcement process is complete the required PSB-F studs are easily clicked on the rails in predefined positions. The slotted holes on the rails offer assembly tolerance to ensure the proper installation of the studs.
Double-headed studs are made from concrete reinforcement steel BSt 500 S and available in diameters 10, 12, 14, 16, 20 and 25 mm, in some extent also in diameter 28 and 32 mm. The assembly bar consists of structural steel S235 or BSt 500 S. Each PSB punching reinforcement component is individually manufactured according to the static requirements. Besides in case of PSB-F type. It is specially developed as multi-component type for stock solution in order to ensure the best flexibility.
