Analysis of Load Test on Composite I-Girder Bridge

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Title: Analysis of Load Test on Composite I-Girder Bridge
Authors: Huseynov, Farhad
Brownjohn, J. M. W.
O'Brien, Eugene J.
Hester, David
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Date: 27-May-2016
Abstract: This paper showcases the importance of field testing in efforts to deal with the deteriorating infrastructure. It demonstrates a load test performed on a healthy but aging composite reinforced concrete bridges in Exeter, UK. The bridge girders were instrumented with strain transducers and static strains were recorded while a four-axle, 32 tonne lorry remained stationary in a single lane. The results obtained from the field test were used to calculate transverse load distribution factors (DFs) of the deck structure for each loading case. Additionally, a 3-D finite element model of the bridge was developed and calibrated based on field test data. Similar loading cases were simulated on the analytical model and behaviour of the structure under static loading was studied. It was concluded that the bridge support conditions had changed throughout its service life, which affected the superstructure load distribution characteristics. Finally, DFs obtained from analysis were compared with factors provided in Design Manual for Roads and Bridges Standard Specification for similar type of bridges.
Type of material: Conference Publication
Publisher: Queen's University Belfast
Keywords: Bridge field testingStrain measurementsLoad distribution factors
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Language: en
Status of Item: Peer reviewed
Conference Details: Proceedings of the CSHM-6: Structural Health Monitoring of New and Ageing Infrastructure, Queen's University Belfast, Northern Ireland, United Kingdom, 26-27 May 2016
Appears in Collections:Civil Engineering Research Collection
TRUSS-ITN Research Collection

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