Cable-stayed Bridge over the Odra River in Wroclaw, Poland

Abstract

<p>The largest bridge along the motorway ring road of Wroclaw is a cable-stayed structure over the Odra River near Redzin water stage of fall. The river flows there in its main bed, while inland navigation uses additional water channels. An island, where the pylon of the new bridge is situated, is located between the river and the channels. The bridge is 1742 m long and consists of a 610 m long southern flyover, a 612 m long cable-stayed main bridge with separate decks suspended to one 122 m high pylon and a 520 m long northern flyover. The superstructure of the main bridge consists of two box girders made of prestressed concrete, one for each carriageway of the highway. The height of the girder is 2.50 m, which is about 1/100th of the main span length. The decks are supported by 80 pairs of stay cables connected to the pylon made of reinforced concrete. The bridge with a deck area of approximately 65 000 m2 was constructed within 36 months.</p>

Analysis of Deformations and Stresses in Stage Constructed Concrete Bridges

“…6): deflection at the previous segment (Δh1), displacement due to slop at the end of the previous segment (Δh2), and displacement due to deformation of segment itself (Δh3). The computer program was used to analyze the "K dzierzyn-Ko e" bridge, which was constructed in Poland, where the cantilever consists of (15) segments whit two prestressed cables in each stage [13]. Figs.…”

“…( 8) and ( 9) show the dimensions and cross-section of the bridge, and Table 1 shows the timetable for construction and other details. " bridge in cm [13]. Other values required for the calculating are:…”

Rędziński Bridge in Wrocław—The Largest Concrete Cable-Stayed Bridge in Poland

“…1 The largest bridge structure along the ring road is the Rę dziń ski Bridge, crossing the Odra River near Rę dzin stage of fall. 2,3 This route for the motorway through this area was selected as a Inside the pylon, a steel core as shown in Fig. 4 was placed.…”

“…An important load-carrying element of the pylon is the upper crossbeam, vertically and longitudinally posttensioned, and heavily reinforced. 2,3 The legs and arms of the pylon were cast in 34 stages. The first three phases included casting the lowest elements of the pylon, inclined outward from the bridge axis and the lower crossbeam, which was prestressed in four stages by thirty 31L15,7 cables.…”