ELASTOMER SERVICE ZENTRALE ESZ Pyramid bearing Unreinforced profiled elastomeric bearing with national technical approval Z-16.52-195 General information Product description Deformation behaviour Compression characteristic and bulging behaviour Examples Planning tools Design table for point bearing Design table for strip bearing Vibration and structure-borne sound insulation Tender texts Dimensions - Shape factor - Boreholes Load capacity and rotation Rotation - twisting surcharge Transverse tensile forces Calculation example Load capacity under rotation Installation instructions Our technical information and other printed material is provided to the best of our knowledge and reflects our state of knowledge based on extensive technical application experience at the time of printing. However, the content is not legally binding. We therefore accept no liability for incorrect or omitted advice. The user of our products is obliged to check the suitability and application possibilities for the intended purpose himself. We make technical changes due to new findings or product developments. Our General Terms and Conditions of Sale, which can be found at www.esz-becker.com, apply exclusively.

General information | Product description ESZ Pyramid bearing | for static component support and impact sound insulation Load-bearing capacity up to 21 N/mm? (depending on format) Material: EPDM rubber-based vulcanisate Impact sound insulating Proven in practice for decades DIBt approval Canbe used asa point or strip bearing Maintenance-free and very durable Very good mechanical-physical characteristics The ESZ Pyramid bearing is a profiled elastomeric bearing for the static and Structure-borne sound insulating support of structural elements, in particular reinforced deformation approval with...

Deformation behaviour | Compression characteristic and bulging behaviour ESZ Pyramid bearing | for static component support and impact sound insulation The following page shows pressure compression characteristic curves and the bulging behaviour for selected bearing formats. The orientation diagrams make it possible to estimate the deflection as a function of the existing compressive stress. The characteristic curves were determined on reinforced concrete contact surfaces and with third load on the bearing. In construction practice, the deflection may deviate from the values of the compressive...

Deformation behaviour | Examples ESZ Pyramid bearing | for static component support and impact sound insulation

Planning tools | Design table for point bearing ESZ Pyramid bearing | for static component support and impact sound insulation Important note: The tables show the maximum permissible load capacity values with corresponding rotational capacity parallelto side b (a ) in accordance with the approval conditions and are intended as a guide only. The fields with a grey background contain information that is not regulated by the approval.

Planning tools | Design table for strip bearing ESZ Pyramid bearing | for static component support and impact sound insulation Important note: The tables show the maximum permissible load capacity values with corresponding rotational capacity parallel to side b (a, ) in accordance with the approval conditions and are intended as a quide only. compressive stress | compressive force | angle of rotation Oz,Rd Maximum permissible compressive force per m in relation to the bearing width Compressive force [kN/m] backto topA

Planning tools | Vibration and structure-borne sound insulation ESZ Pyramid bearing | for static component support and impact sound insulation Use of the bearing for the purpose of structure-borne sound insulation and vibration isolation The ESZ Pyramid bearing is ideal for structure-borne sound insulation. For optimum insulation properties in this area of application, the compressive stress should be < 1 N/mm? (characteristic stress). The formation of sound bridges due to installation errors must be avoided. The load levels of 0.1-1.0 N/mm? and the structure-borne sound insulation to be expected...

Planning tools | Tender texts ESZ Pyramid bearing | for static component support and impact sound insulation -for use between precast reinforced concrete elements Supply and installation of non-reinforced reinforced concrete elements. The proof Bearing type: Bearing thickness: elastomeric bearings with national technical approval between precast of the usability of the bearings must be provided. ESZ Pyramid bearing with building authority approval Z-16.32-195 10.8 mm Drill holes: ESZ Wilfried Becker GmbH; Weilerhéfe 1, 41564 Kaarst-Biittgen Tel. : +49 2131 758100; [email protected] -for use...

Dimensioning | dimensions - shape factor - boreholes ESZ Pyramid bearing | for static component support and impact sound insulation Conditions > Dimensions of the bearings and permissible boreholes (according to abZ section 2.1.1) The shape factor Sfor rectangular bearings is Rectangular: a>50mm,b2>100 mm Smallest geometry of bearings with bores Boreholes (base and lateral surfaces) must still be taken into account (=deducted) in the calculation! Up to four boreholes are permitted thickness of the unloaded bearing shorter side of the bearing longer side of the bearing whereby the area of the...

Design | Load capacity and rotation ESZ Pyramid bearing | for static component support and impact sound insulation Calculation of the load-bearing capacity and consideration of the angle of rotation incl. surcharges The load-bearing bearing is limited by the manufacturer to 21 N/mm/?, significantly higher load-bearing capacities are specified according to the design function in Table 1 of the approval, depending on the form factor. The vertical load on an elastomeric bearing leads to a centric load concentration and, in conjunction with a support torsion, to an eccentric load concentration. The...

Design | Rotation - twisting surcharge ESZ Pyramid bearing | for static component support and impact sound insulation Deviations from the plane parallelism and unevenness of the contact surfaces of the adjacent Geometric imperfections and deviations from the plane parallelism of the contact surfaces must be recognised with at least 0.01 rad [= 10 %o] and added to the calculated value of the bearing torsion. If contact surfaces must be taken into account with 625/a [%o] and calculated in the same way as planned rotations. Bearing side a is always the shorter bearing side. If a cast-in-place concrete...