The bi-Trapez Bearing® provides highly effective insulation against impact sound and vibrations and is permanently elastic in case of component rotation.
This bearing is primarily used for structural members of all types and for impact sound mitigation in stair and landing components. It is a non-reinforced elastomeric bearing with trapezoidal profiling on both sides and a shape dependent load capacity of up to 17.4 N/mm². The main component is an ageing resistant EPDM elastomer material with a hardness of 65 ± 5 Shore A. The material is weather and ozone resistant. The material is quality controlled.
Approval no. Z-16.32-455, issued by DIBt Berlin.
Use and areas of application
bi-Trapez Bearing® provides highly effective insulation against structure-borne sound and vibrations and is permanently elastic and articulating in the case of torsion in structural members. This bearing is primarily used for structural members of all types and for impact sound mitigation in stair and landing bearings.
bi-Trapez Bearing® can be used in cast-in-place concrete as an Impact Sound Stop stair component with a one-sided cover.
Building authority approval
The approval for use as a construction bearing in building construction is regulated by the standard building authority certification Z-16.32-455, issued by the German Center of Competence in Civil Engineering (DIBt).
Behaviour in fire
Fire safety report No. 3799/7357-AR by the Technical University (TU) of Braunschweig must be taken into account for fire safety requirements. The report describes minimum dimensions and other measures that fulfil the requirements specified in DIN 4102-2.
TECHNICAL DATA SHEET
TECHNICAL INNOVATION PRODUCT CATALOGUE
NON-REINFORCED ELASTOMERIC BEARING
OPTIMUM CONSTRUCTION WORK QUALITY GUARANTEED
Permanent loads, such as a structure’s dead load, variable influences, such as wind, and constraining forces due to factors such as temperature changes, creep, component tolerances or settling cause deformations in structural components. The aforementioned influences inflict damage to structures if no suitable elastomeric bearings are used. Besides cracks and spalling, they can also cause major permanent damage to adjacent components, which will then need to be repaired at considerable expense in terms of time and cost.
The elastic effect of the structural bearings transfers forces centrally in structural connections while also compensating for deviations in plane parallelism. Elastomeric bearings systematically absorb shear deformations from non-permanent horizontal impacts.
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