WABO DEC P - Pot bearings

DESCRIPTION
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WABO DEC P bearings consist of a steel baseplate housing a ring into which a rubber disc is fitted. The former ring is closed above a steel pressure plate engaging with a slight clearance into the circular baseplate recess. Rubber is retained in all directions and, behaving as an incompressible liquid, affords rotations on all axes.

To allow for sliding, the pressure disc is faced on top with a variable value (for EN 1337, AASHTO) of thickness partly recessed PTFE layer. The disc is also placed in contact with a steel plate lined with stainless steel high-mirror-finishedsheet. On guide bearings guide bars restricts the movement in one direction and resists horizontal forces perpendicular to the direction of translations. High-grade anticorrosion treatments and dust proofing gaskets adequately protect sliding surfaces.

USES

WABO DEC P steel/PTFE bearings, of the elastomer-based retained disc type are used as structural bearings for bridges since they are designed to support large vertical loads whilst on occasions resist horizontal loading and accomodate movement in a variety of directions. These bearings are supplied in three types: fixed, PF (Fig.1), guided, PG (Fig.2) and freesliding, PM (Fig.3).