With Studio Legros’s students: Delphine Damwan, Quentin Davel


For the water part of level -1, we tried to preserve the site and created an adjustable system to the low walls between the arches. We used these pre-existing foundations to set up our supporting elements that adjust to the different measurements of each stone wall. With a diagonal interlocking, we redirect the forces in the stone to maintain and solidify the floor and the Protostructure.






A part of the floor is suspended above water. We therefore imagined a cantilever system that enters the arches to lean on the back walls. We once more adapted the structure at the special curvature of each arch so that the forces are well transmitted and the floor stay stable.



Between the arches, where the cantilever system is not supporting the floor, we used big diagonals to maintain and connect the floating parts of the floor to the top of the Protostructure. Moreover we blocked the joists against the wall with a structure that prevents the floor from rotating and can also be used as a ladder to climb to level 0.




