Steel sandwich elements for bridge applications
​Example of sandwich element in bridge application

Saving Weight by Using Steel Sandwich Bridge Decks

The concept of light-weight steel sandwich elements has been used for example in marine applications. This type of innovative plate structure has a high stiffness to weight ratio and demands modern joining methods.
Todays practice with regards to the deck of all-steel bridges rests to steel-plates with longitudinal trapezoidal stiffeners. These orthotropic decks suffer severely from fatigue damage and high production costs. The steel-sandwich element is a promising replacer of this conventional steel-deck.
Using this type of element in bridge applications will enable a lighter steel structure with a higher utilization of the material. This reduces the CO2 foot-print and eases the on-sight assembly with reduced production cost as a result.
This kind of element has in previous research shown great potential. The aim for this project is investigate that potential and state its structural performance – in order to be an approved structural member of a bridge. That includes displaying its structural behavior when utilized in a bridge application, developing strength design formulations, optimization recommendations, investigations of life-time environmental performance, fatigue evaluations and developing element to element joints

Start date 01/01/2015
End date 31/12/2019
Steel sandwich elements for bridge applications
The project is carried out by the Division of Structural Engineering in the research group Steel and Timber Structures
Keywords: Steel sandwich elements, bridges, structural steel
Project members

Project leader: Mohammad Al-Emrani

All members of the project:

Mohammad Al-Emrani

Peter Nilsson

Contact: Peter Nilsson

External partners at the project

WSP Sverige AB

Chalmers Areas of Advance
Built Environment

Funded by

  • Norwegian Public Roads Administration (Public, Norway)
  • Swedish Transport Administration (Public, Sweden)

Published: Wed 25 Mar 2015. Modified: Thu 31 May 2018