Transcription of SECTION 14 - BEARINGS
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SECTION 14 - BEARINGS
BRIDGE design SPECIFICATIONS APRIL 2000. SECTION 14 - BEARINGS . SCOPE longitudinal translation of abutting structure ele- ments. It may or may not provide for differential This SECTION contains requirements for the design and lateral translation or rotation. selection of structural BEARINGS . * Knuckle bearing A bearing in which a concave metal The selection and layout of the BEARINGS shall be surface rocks on a convex metal surface to provide consistent with the proper functioning of the bridge, and rotation capability about any horizontal axis. shall allow for deformations due to temperature and other Longitudinal The direction associated with the axis of time dependent causes. the main structural trusses or girders in the bridge. The loads induced in the BEARINGS and structural mem- * Metal Rocker or Roller bearing A bearing which bers depend on the stiffness of the individual elements carries vertical load by direct contact between two and the tolerances achieved during fabrication and erec- metal surfaces and which accommodates movement tion.
BRIDGE DESIGN SPECIFICATIONS • APRIL 2000 Bridge Name or Ref. Bearing Identification Mark Number of bearings required Seating Material …
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