Type

Conference Proceedings

Authors

David Hester
Eugene J. O'Brien
J. M. W. Brownjohn
F. Huseynov

Subjects

Engineering

Topics
load test composite behaviour finite element model bridge field testing load distribution factors field data strain measurements

Analysis of Load Test on Composite I-Girder Bridge (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.
Collections Ireland -> University College Dublin -> Civil Engineering Research Collection

Full list of authors on original publication

David Hester, Eugene J. O'Brien, J. M. W. Brownjohn, F. Huseynov

Experts in our system

1
David Hester
University College Dublin
Total Publications: 11
 
2
Eugene J. O'Brien
University College Dublin
Total Publications: 192