Guiding structure for a tower for loading/unloading a tank intended for storing and/or transporting liquefied gas

A tank for the transport and/or the storage of a liquefied gas, comprising:

• a supporting structure,
• a plurality of walls each including in a thickness direction of the wall at least one thermally-insulating layer resting against the supporting structure and at least one sealed membrane resting on the thermally-insulating layer, the plurality of walls including at least one bottom wall, and
• a guiding structure configured to receive a tower for loading and/or offloading liquefied gas contained in the tank, the guiding structure being arranged against the supporting structure and extending at least in part inside the tank, the guiding structure including a base including at least one plate bearing against the supporting structure, the thermally-insulating layer including at least one self-supporting heat-proof panel that is at least in part disposed around the guiding structure,
• wherein the thermally-insulating layer includes a clearance delimited in the thickness direction of the bottom wall by a portion of the self-supporting heat-proof panel and by the supporting structure, the clearance being configured to accommodate at least in part the plate of the guiding structure, the plate extending in the clearance and in a plane perpendicular to the thickness direction of the bottom wall, the guiding structure bearing on the base formed at least in part by the plate that is in plane-on-plane contact against the supporting structure.