What are the Primary and secondary load-bearing structures of high-rise concrete buildings?

The load-bearing structure can be classified into two category-

Primary load-bearing structure - This type of structure responsible for direct load-bearing and resist all of the load. This is specially designed as a load-carrying member. This will include like beam, column, footing, shear wall.

Secondary load-bearing structure - This type of structure is not designed as a load-bearing member of the structure. This will include like decorative screens, canopies.

Walls, beams, columns, foundations etc can be called as primary or main load bearing components of a concrete building.

Examples of secondary load bearing structures would be the lintels in masonry walls, the shelf angles that support finishes when they span over a window or other opening and there are other odd and ends that provide support or stabilization such as cross bracing in steel bar joist or structural elements used during the construction of the building.