Leziria bridge (case study)
Object description
With a total length of 12 km including its approach viaducts, the Leziria bridge in one of the longest bridges in the world. It is a part of highway A10 outside of Lisbon and is made of prestressed concrete. The bridge has been though-roughly monitored since it was constructed. This case study outlines a set of good practices for advanced FE-modelling in assessment of large existing structures.
Object analysis
No safety verification of the bridge is done but the focus is rather on advanced FE-modelling that can be used for assessment in future. Good correlation between FE-models and monitoring data is observed.
Object state
A number of critical aspects were identified: Detailed modelling of the geometry from drawings, in situ measurements of structural mechanical properties including soil, information on actual loading conditions from construction phase and load test and the sequence of construction.
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Documents
This case study was contributed by Frida Liljefors of Norwegian University Of Science And Technology. Last edited by technical staff.