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Redundancy evaluation of composite twin i-girder bridges in fractured condition

  • H. Lam
  • , W. Lin
  • , T. Yoda
  • , Kiyoshi Ono

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussaConference article in proceedingsScientificvertaisarvioitu

Abstrakti

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.

AlkuperäiskieliEnglanti
OtsikkoMaintenance, Safety, Risk, Management and Life-Cycle Performance of Bridges - Proceedings of the 9th International Conference on Bridge Maintenance, Safety and Management, IABMAS 2018
ToimittajatDan M. Frangopol, Riadh Al-Mahaidi, Colin Caprani, Nigel Powers
KustantajaCRC Press
Sivut393-400
Sivumäärä8
ISBN (painettu)9781138730458
TilaJulkaistu - 1 tammik. 2018
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaInternational Conference on Bridge Maintenance, Safety and Management - Melbourne, Austraalia
Kesto: 9 heinäk. 201813 heinäk. 2018
Konferenssinumero: 9

Conference

ConferenceInternational Conference on Bridge Maintenance, Safety and Management
LyhennettäIABMAS
Maa/AlueAustraalia
KaupunkiMelbourne
Ajanjakso09/07/201813/07/2018

Rahoitus

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.

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