A twin-arch rib footbridge constructed with innovative use of prestressed stone ashlars is designed and its static behavior is investigated by finite element method. Through FE spatial and plane models, general deformation modes, contact-sliding behavior of the interface between stone element and mortar layer, as well as stresses in the stone arch ribs under crowd load are investigated. It is revealed that FE plane model can accurately analyze the bridge's general deformation. Conversely, from the analysis of FE spatial models, no separation or sliding between stone element and mortar layer has been found under critical load cases. Moreover, stress control in the different materials is also achieved. Finally, both geometry and structural layout of the new-type structure are technologically feasible.

Static behaviour of a prestressed stone arch footbridge / Briseghella, Bruno. - (2012), pp. 85-91. ((Intervento presentato al convegno 5th International Conference on New Dimensions in Bridges, Flyovers, Overpasses and Elevated Structures tenutosi a chn nel 2012.

Static behaviour of a prestressed stone arch footbridge

briseghella
2012-01-01

Abstract

A twin-arch rib footbridge constructed with innovative use of prestressed stone ashlars is designed and its static behavior is investigated by finite element method. Through FE spatial and plane models, general deformation modes, contact-sliding behavior of the interface between stone element and mortar layer, as well as stresses in the stone arch ribs under crowd load are investigated. It is revealed that FE plane model can accurately analyze the bridge's general deformation. Conversely, from the analysis of FE spatial models, no separation or sliding between stone element and mortar layer has been found under critical load cases. Moreover, stress control in the different materials is also achieved. Finally, both geometry and structural layout of the new-type structure are technologically feasible.
5th International Conference on New Dimensions in Bridges, Flyovers, Overpasses and Elevated Structures
chn
2012
85
91
Briseghella, Bruno
Static behaviour of a prestressed stone arch footbridge / Briseghella, Bruno. - (2012), pp. 85-91. ((Intervento presentato al convegno 5th International Conference on New Dimensions in Bridges, Flyovers, Overpasses and Elevated Structures tenutosi a chn nel 2012.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1287422
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