Analysis and design methodology for an FRP cable-stayed pedestrian bridge

This paper describes the various analysis and design aspects of a fiber reinforced plastic (FRP) bridge. The design methodology is illustrated by describing the steps taken in the design of the first US FRP cable-stayed pedestrian bridge to be constructed in Lincoln, Nebraska. The analysis is made using three dimensional (3-D) macro models of the bridge to describe its overall behavior under static and dynamic loads. Separate analysis is done to study the local stability of the different structural elements. The orthotropy of the material is taken into account during this analysis. The short term and long term stiffnesses and strengths are evaluated and accounted for in the design process.