The document outlines various building elements used in different types of construction projects including residential, commercial, and bridge building. It lists components like slabs, beams, columns, walls, and scaffolding that are common across project types. Specific to residential are elements like plinth beams, shuttering, and overhead water tanks. Commercial construction mentions lifts, false ceilings, and elevator shafts. Bridge building lists piers, deck beams, abutments, and reinforcement bars for structural support.