The structure of the Villa Méditerranée is in an unstable position, which gives to four of its foundations a permanent traction load. Each of these foundations is stabilised by 4 to 6 active permanent anchors (149 to 349 Tonnes of load service each). In order to limit deformations due to elasticity of prestressing cables, a specific level of prestressing has been defined. The paper presents the design, the achievement and the monitoring of the prestressing anchors, in order to insure the stability of the structure.
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