Fully precast light-weight steel-UHPC composite structure for accelerated bridge construction

Author(s) : S.W. Deng, X.D. Shao, B.F. Yan, H.H. Li
Paper category : Proceedings
Book title : UHPFRC 2017 Designing and Building with UHPFRC: New large-scale implementations, recent technical advances, experience and standards
Editor(s) : F. Toutlemonde & J. ResplendinoT.Ch.
Print-ISBN : 978-2-35158-166-7
e-ISBN : 978-2-35158-167-4
Publisher : RILEM Publications SARL
Publication year : 2017
Pages: 665 - 674
Total Pages : 10
Language : English

Abstract: With the fast increasing of private cars, public traffic jams in metropolitans are bound to happen, especially somewhere in the field constructions. In order to shorten the in-situ construction working hours of municipal viaduct for accelerate bridge constructions, the paper proposed a fully precast light-weight steel-UHPC (ultra-high performance concrete) composite bridge in the form of simply-supported and continuous bridge structures.
Compared with the conventional design, the ratio of height to span length of this proposed newly bridge structure in trial design decreased about 33 %, and its self-weight reduced by 57 %. The structural ultimate limit state and serviceability limit state analysis of the proposed structure were conducted under the criterion of China and corresponding recommendations in France (The AFGC-SETRA UHPFRC recommendations). Furthermore, FEA (finite element analysis) model of the mechanical performance of the key part of such newly structure were also carried out. The studies indicate that the flexural and shear behaviours of the proposed bridge structure can better meet the requirements of engineering application

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00

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