I/20 and II/231 in Plzeň, Plaská–Na Roudné–Chrástecká, Stage 2 — Plzeň

Project description:

SO 201:
A railway bridge with a load-bearing structure consisting of three spans and a total bridge length of 44.80 m. The superstructure is an integral frame bridge with a deck slab incorporating embedded welded girders (ZBN), featuring a top deck and a continuous ballast bed. The span arrangement is 16.5 + 13.0 + 16.5 = 46.0 m.
The superstructure is rigidly connected to the piers, which consist of inclined frame struts with a common foundation. A circular nose is provided on the superstructure in front of the piers. The piers are positioned on the central island of a roundabout. At the abutments, the superstructure is supported on a toothed bearing interface. The abutments and piers are reinforced-concrete structures founded deep on large-diameter piles.
SO 202:
A single-span railway bridge with a total bridge length of 19.80 m. The superstructure is an integrated, two-hinged frame (strut frame), with a deck slab incorporating embedded welded girders (ZBN). The bridge has no separate deck; the track is placed directly on the structure with elastic fastening. The span length is 21.0 m.
The abutments are reinforced-concrete structures founded deep on 1100 mm diameter piles. Abutment OP2 is widened to support a temporary bridge structure that will be installed prior to the bridge being brought into operation.

Project Manager: Ing. Zuzana Biela