Weikendorf bridge (case study)

The single span reinforced concrete railway bridge was built in 1967 and repaired in 2014. The main bearing elements of the superstructure is a concrete girder and a concrete slab and the substructure consists of abutments and wing walls. It is located just outside of Weikendorf.


Object description

The single span reinforced concrete railway bridge was built in 1967 and repaired in 2014. The main bearing elements of the superstructure is a concrete girder and a concrete slab and the substructure consists of abutments and wing walls. It is located just outside of Weikendorf.

Civil engineering type
:
Railway network Bridge
Year of construction
:
1967
Composed of materials
:
Location coordinates
:
48° 20' 26.58" N, 16° 45' 15.69" E
Country
:
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Object analysis

The initiation of the assessment was research interest. The purpose was to develop a probabilistic framework for predicting deterioration in the format of a semi-Markov process, based on inspection data from visual inspections and analytical models of the deterioration process. Inspection records in the form of condition rating was available and the additional data collected before repairing the bridge was used for developing the model. How the decision on repairing the bridge was taken is not covered in the present paper.

Case type
:
Research

Object state

Spalling was observed and from measurements it was concluded that abutments were affected by chloride and carbonation and wing-walls by carbonation. Carbonation was chosen to be the dominant deterioration process and chloride content was ignored, even though in reality both phenomena induce corrosion. Carbonation depth was measured with phenolphthalein indicator and location of reinforcement was determined by concrete scanning.

Observed deterioration processes
:
Observed damage types
:
Performance indicators
:
Chemical properties, Spatial properties (concrete cover/duct voids)

Images

Weikendorf bridge 1.png

Documents

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This case study was contributed by Frida Liljefors of Norwegian University Of Science And Technology. Last edited by technical staff.