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Experimental Study on Mechanical Behavior of T-shape Stiffened Orthotropic Steel-concrete Composite Bridge Decks

 Experimental Study on Mechanical Behavior of T-shape Stiffened Orthotropic Steel-concrete Composite Bridge Decks
Auteur(s): , , ,
Présenté pendant IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017, publié dans , pp. 245-252
DOI: 10.2749/vancouver.2017.0245
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A new-type of orthotropic steel-concrete composite bridge deck system was developed, by casting the concrete overlay on the top of the orthotropic steel deck ribbed with T-shape steel member. To st...
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Détails bibliographiques

Auteur(s): (College of Civil Engineering, Tongji University, Shanghai, 200092, China)
(College of Civil Engineering, Tongji University, Shanghai, 200092, China)
(College of Civil Engineering, Tongji University, Shanghai, 200092, China)
(College of Civil Engineering, Tongji University, Shanghai, 200092, China)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Symposium: Engineering the Future, Vancouver, Canada, 21-23 September 2017
Publié dans:
Page(s): 245-252 Nombre total de pages (du PDF): 8
Page(s): 245-252
Nombre total de pages (du PDF): 8
Année: 2017
DOI: 10.2749/vancouver.2017.0245
Abstrait:

A new-type of orthotropic steel-concrete composite bridge deck system was developed, by casting the concrete overlay on the top of the orthotropic steel deck ribbed with T-shape steel member. To study its mechanical behavior, two new-type orthotropic steel-concrete composite bridge decks with different section dimensions were experimentally investigated and two reference decks (reinforced concrete deck and orthotropic steel deck) were also involved in the research for comparison. For the new-type orthotropic steel-concrete composite decks, the average value of the ultimate load per width is 885.7kN, which are 2.35 and 1.61 times respectively for that of the concrete and steel reference decks with almost the same section height. Experimental results proved that the composite deck can effectively control the crack initiation and propagation in the concrete and postpone the yielding of the steel bars and steel plates.