TY - GEN
T1 - Redundancy evaluation of composite twin i-girder bridges in fractured condition
AU - Lam, H.
AU - Lin, W.
AU - Yoda, T.
AU - Ono, K.
N1 - Funding Information:
This research is sponsored by Waseda University Grant for Special Research Project-A (The key funding, Project number: 2015A-503). This financial support is gratefully acknowledged.
Publisher Copyright:
© 2018 Taylor & Francis Group, London, UK.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2018
Y1 - 2018
N2 - Despite commonly used in highway bridge design in Japan, composite twin I-girder bridge system is currently classified as non-redundant mainly due to the oversimplified assumption in the current bridge design. In this study, two composite twin I-girder bridge models are tested to investigate the mechanical behavior and redundancy analyses of the composite twin I-girder bridge system in fractured condition. Numerical models were first validated based on the experimental results. Hereafter, numerical study was carried out to investigate the effect of fracture location and the effect of concrete slab on the redundancy level of the composite twin I-girder bridge system. Results show that the fracture at the mid-span section is the most critical damage condition comparing to other fracture locations. In addition, the concrete slab is found as the main structural component that ensures the survivability of the composite twin I-girder bridge system in fracture condition.
AB - Despite commonly used in highway bridge design in Japan, composite twin I-girder bridge system is currently classified as non-redundant mainly due to the oversimplified assumption in the current bridge design. In this study, two composite twin I-girder bridge models are tested to investigate the mechanical behavior and redundancy analyses of the composite twin I-girder bridge system in fractured condition. Numerical models were first validated based on the experimental results. Hereafter, numerical study was carried out to investigate the effect of fracture location and the effect of concrete slab on the redundancy level of the composite twin I-girder bridge system. Results show that the fracture at the mid-span section is the most critical damage condition comparing to other fracture locations. In addition, the concrete slab is found as the main structural component that ensures the survivability of the composite twin I-girder bridge system in fracture condition.
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M3 - Conference contribution
AN - SCOPUS:85067002578
SN - 9781138730458
T3 - Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
SP - 393
EP - 400
BT - Maintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
A2 - Powers, Nigel
A2 - Frangopol, Dan M.
A2 - Al-Mahaidi, Riadh
A2 - Caprani, Colin
PB - CRC Press/Balkema
T2 - 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
Y2 - 9 July 2018 through 13 July 2018
ER -