Techno Press
Techno Press

Structural Engineering and Mechanics
  Volume 24, Number 5, November30 2006 , pages 561-584
DOI: https://doi.org/10.12989/sem.2006.24.5.561
 


Design approach for a FRP structural formwork based steel-free modular bridge system
Lijuan Cheng and Vistasp M. Karbhari

 
Abstract
    The paper presents results of parametric studies, and an overall approach for the design of a modular bridge system which incorporates a steel-reinforcement free concrete slab cast on top of carbon FRP stiffened deck panels which act as both structural formwork and flexural reinforcement, spanning between hollow box type FRP girders. Results of the parametric studies are highlighted to elucidate important relationships between critical configurational parameters and empirical equations based on numerical studies are presented. Results are discussed at the level of the individual deck and girder components, and as a slab-on-girder bridge system. An overall design methodology for the components and bridge system including critical performance checks is also presented.
 
Key Words
    steel-free; fiber reinforced polymer; structural formwork; parametric study; design approach; modular bridge system.
 
Address
Lijuan Cheng; Department of Civil and Environmental Engineering, University of California, Davis, CA 95616, USA
Vistasp M. Karbhari; Department of Structural Engineering, University of California, San Diego, La Jolla, CA 92093-0085, USA
 

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