×

Puh's Bridge over Drava in Ptuj

The winning proposal for the new bridge over Drava Lake at Ptuj (Slovenia) is ranged as s.c. ’’extradosed bridge’’, which are similar to cable-stayed bridges only their pylons are usually lower and spans vary from 100 m – 200 m.

The length of the proposed bridge amounts 430 m with spans of 65 m + 100 m + 100 m + 100 m + 65 m. The superstructure is designed as a pre-stressed box-shaped 2.60 m deep concrete girder with two outwards inclined 9 m high pylons at each support.

The bridge substructure consists of two abutments and four middle piers in the Drava Lake, all of them deep founded on piles 150 cm in diameter.

Project type
Road bridge
Location
Ptuj, Slovenia
Year
2007
Status
Completed
Ponting Services
Winning competition design, preliminary design, final design, detailed design
Length
430 meters
Max. span
100 meters
Span arrangement
65 m + 100 m + 100 m + 100 m + 65 m
Width
18,7 meters
Foundation type
Deep on bored RC piles, diameter 1.50 m
Structure
Extradosed bridge
Construction
Balanced cantilever construction method
Client
DARS d.d.
Cooperators
mag. prof. Peter Gabrijelčič
Contractor
JV: SCT d.d. Ljubljana, Porr d.o.o., Slovenia
Awards
SCE Award 2007 – Ljubljana, Slovenia, 2008
Popular culture
Under the theme Europe-Bridges, the post office of Slovenia depicted Puh's bridge on one of the two special edtion stamps. Date of issue: 25 May 2018.
Publications
MARKELJ V. The First Extradosed Bridge in Slovenia. Structural Engineering International SEI, 2010, 4, 462-467.