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Industrialized light-weight steel bridge concept using corrugated core steel sandwich plates

Peter Nilsson ; Mohammad Al-Emrani (Institutionen för bygg- och miljöteknik, Konstruktionsteknik)
19th IABSE Congress Stockholm 2016: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016 p. 564-572. (2016)
[Konferensbidrag, refereegranskat]

A corrugated core steel sandwich plate is a high-performance all-steel structural element. It consists of two outer steel plates separated by a folded corrugated core plate. Connecting the three plates can be made through hybrid laser-arc welding. In bridge applications, steel sandwich bridge decks bring several benefits compared to conventional orthotropic decks; better load distribution, higher stiffness to weight ratio and a more industrialized production and construction process. This paper presents a background to the concept of steel sandwich bridge decks and comparisons are made to conventional steel bridge decks in a qualitative and quantitative manner. The results from a study on the impact of the weld joint configuration on the fatigue performance and transverse shear stiffness is presented. In addition possible applications of sandwich bridge decks are discussed based on case studies. The results show that weight saving with up to 44% can be achieved by replacing conventional orthotropic decks with steel sandwich plates.

Nyckelord: Bridge deck; Corrugated core sandwich; Hybrid laser welding; Transverse shear stiffness



Denna post skapades 2017-06-14.
CPL Pubid: 249765

 

Institutioner (Chalmers)

Institutionen för bygg- och miljöteknik, Konstruktionsteknik (2005-2017)

Ämnesområden

Husbyggnad

Chalmers infrastruktur