A truss network for aircraft floor attachment includes an aircraft fuselage, an aircraft floor disposed in the aircraft fuselage and a three-dimensional truss network comprising at least two truss assemblies each comprising a plurality of tie rod assemblies connecting the aircraft fuselage to the aircraft floor. A method of attaching a floor structure to a honeycomb fuselage structure and an aircraft having a truss network connecting an aircraft fuselage to an aircraft floor are also disclosed.