the partition wall includes a vertical structure (10) has a deformable portion (19). the deformable portion includes a tube fitting (20) comprising at least a portion of the rigid tube (22, 24), the combination of the tube being connected to the wall structure (10) at each of its two ends (20a, 20b) via a connecting element (21a, 21b) end elastically deformable.in addition, at least in the middle part of the end connectors (21a, 21b) is deformable elastomeric material type, composite and plastic sheeting.
