A support structure is a type of construction that provides stability and strength to a building or other structure. It is composed of various components, such as trusses, rebar, gantries, and pillars. A TRUSS is a framework of metal or wood that is used to support a roof or bridge. Rebar is a type of steel reinforcement bar that is used to strengthen concrete structures. A GANTRY is a large frame-like structure that is used to support heavy loads. Finally, a PILLAR is a vertical support structure that is used to hold up a roof or other structure. Together, these components form a support structure that is essential for the safety and stability of any building or structure.