WABO DEC P - Pot bearings
DESCRIPTIONWABO 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
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.
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).
- High resistance to horizontal stress
- High resistance to dynamic loads
- High durability
- Reduced maintenance