Recalculation Hölltobel-Bridge

Bridges, Infrastructure

Building category

Solid construction

Construction method

Building inspection , Expertise, Examination

Performed services

Inland

Region

January 2016

Processing time from

August 2016

Processing time until

DI Sascha Grujic

Project manager

DI Georg Wallner

Substitute project manager

DI Walter Reisenauer

Project team member

Amt der Vorarlberger Landesregierung

Client

Slab bridges

Type of bridge

3

Number of fields

11,00 m

Maximum span

28,00 m

Length of bride

238,00 m²

Expanse of bridge

Description of bridge

The Hölltobel-Bridge is a 3-span, loosely reinforced slab bridge with a radius of approx. 26.50 m in the road axis. The abutment and the centre pier are situated parallel to each other. As the bridge was rated a 5 (“bad state of preservation”) the county government of Vorarlberg ordered a recalculation with the up-to-date standards and the norm ONR 24008. So the actual load reserve capacity could be determined in consideration of the heavily corroded reinforcement.

Bridge details:

  • range of centre field 11.00 m
  • total length 28.00 m
  • width of bridge 8.50 m

Description of tasks

  • Development of exploration program for the remaining cross-section of the corroded reinforcement
  • Record of reinforcement on site
  • Recalculation of bridge
  • Recommendation of different measures and possibilities of restrictions in order to use the bridge until its reconstruction

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