Monolithic structure with redundant load paths

A pressure bulkhead for attachment to fuselage structure of an aircraft so as to bound one end of a pressurized compartment, comprising:

• a forward web having opposite surfaces bounded by an outer periphery of the forward web;
• a forward attachment ring connected to the outer periphery of the forward web, the forward web and forward attachment ring being integrally formed as a one-piece structure, the forward attachment ring being adapted to be attached to inner surfaces of the fuselage structure;
• an aft web having opposite surfaces bounded by an outer periphery of the aft web;
• an aft attachment ring connected to the outer periphery of the aft web, the aft web and aft attachment ring being integrally fabricated as a one-piece structure, the aft attachment ring being adapted to be attached to inner surfaces of the fuselage structure with the aft web axially spaced from the forward web;
• and
• elongate stiffeners disposed between the forward and aft webs and attached to opposing surfaces thereof;
• the stiffeners being integrally fabricated with at least one of the forward and aft webs as an integral one-piece structure, whereby the bulkhead provides multiple load paths from the webs to the fuselage structure.