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Experimental and Numerical Studies on Post-Facture Behavior of Simply Supported Composite Twin I-Girder Bridges

 Experimental and Numerical Studies on Post-Facture Behavior of Simply Supported Composite Twin I-Girder Bridges
Autor(en): , ,
Beitrag für IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017, veröffentlicht in , S. 206-213
DOI: 10.2749/vancouver.2017.0206
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This study is carried out to investigate the post-fracture behavior of the composite twin I-girder bridge systems. In the experimental program, one intact specimen and one damage specimen were test...
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Bibliografische Angaben

Autor(en): (Waseda University, Tokyo, Japan)
(Waseda University, Tokyo, Japan)
(Waseda University, Tokyo, Japan)
Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017
Veröffentlicht in:
Seite(n): 206-213 Anzahl der Seiten (im PDF): 8
Seite(n): 206-213
Anzahl der Seiten (im PDF): 8
Jahr: 2017
DOI: 10.2749/vancouver.2017.0206
Abstrakt:

This study is carried out to investigate the post-fracture behavior of the composite twin I-girder bridge systems. In the experimental program, one intact specimen and one damage specimen were tested under static load with displacement control method. Different cases of fractures are performed in numerical analyses based on finite element method and nonlinear analyses. Significant reduction of system stiffness and load carrying capacity is observed in post-fracture condition. The failure modes of both intact and damage specimen are governed by the crush of the concrete slab. Nevertheless, composite twin I-girder bridge system will not collapse under dead load and be able to carry a certain level of live load. Numerical analyses for different damage conditions proved that the fracture at mid-span section is the most fracture critical location for composite twin I-girder bridge system.