Soil-Structure Interaction of Reinforced Concrete Ringwalls in Granular Fill
Gustavo Padros
In the proceedings of: GeoEdmonton 2018: 71st Canadian Geotechnical Conference; 13th joint with IAH-CNCSession: Soil Mechanics and Foundations (Advanced Soil Mechanics)
ABSTRACT: A methodology using soil-structure interaction is proposed to determine the amount of horizontal steel reinforcement of a concrete ringwall. The method requires the determination of the horizontal stress (hoop stress) that is applied on the ringwall, which depends on the steel strain developed by the ringwall horizontal steel reinforcement and the state of earth pressures acting against the ringwall. The determination of the horizontal displacement of the ringwall allows to estimate the development of active earth pressure against the inside face of the ringwall and passive earth pressure against the outside face of the ringwall. A procedure to determine earth pressures for intermediate cases is also discussed, which requires results from triaxial tests. A discussion is included indicating the fallacy of assuming Ko conditions in the design of ringwalls.
RÉSUMÉ: Une méthodologie utilisant l'interaction sol-structure est proposée pour déterminer la quantité de ferraillage horizontal d'un mur de béton. La méthode nécessite la détermination de la contrainte horizontale (contrainte circonférentielle) qui est appliquée sur le mur annulaire, qui dépend de la déformation de l'acier développée par l'armature d'acier horizontale du mur annulaire et de l'état des pressions terrestres contre le mur annulaire. La détermination du déplacement horizontal de la paroi annulaire permet d'estimer le développement de la pression de la terre active contre la face interne de la paroi annulaire et la pression passive de la terre contre la face extérieure de la paroi annulaire. Une procédure pour déterminer les pressions de terre pour les cas intermédiaires est également discutée, ce qui nécessite des résultats de tests triaxiaux. Une discussion est incluse indiquant l'erreur de supposer des conditions de Ko dans la conception des murs annulaires.
Please include this code when submitting a data update: GEO2018_393
Access this article:
Canadian Geotechnical Society members can access to this article, along with all other Canadian Geotechnical Conference proceedings, in the Member Area. Conference proceedings are also available in many libraries.
Cite this article:
Gustavo Padros (2018) Soil-Structure Interaction of Reinforced Concrete Ringwalls in Granular Fill in GEO2018. Ottawa, Ontario: Canadian Geotechnical Society.
@article{geo2018Paper393,
author = Gustavo Padros,
title = Soil-Structure Interaction of Reinforced Concrete Ringwalls in Granular Fill,
year = 2018
}
title = Soil-Structure Interaction of Reinforced Concrete Ringwalls in Granular Fill,
year = 2018
}