Design and dimensioning of basic load-bearing elements of reinforced concrete against static and seismic actions. The operation and reinforcement of slabs in reinforced concrete building structures for load transfer and diaphragm function is discussed in detail. A brief reference to the characteristics of other types of slabs (mycetoid, ribbed) and basic criteria through which the optimum type of slabs is selected, depending on architectural and structural requirements. Basic principles for the design and bearing of reinforced concrete staircases. Dimensioning and reinforcement of beams, columns and seismic walls with emphasis on construction details (e.g. reinforcement anchorages) and identification of corresponding deficiencies of older structures compared to the current regulations. Material premeasurement. Principles governing the formation of the load-bearing structure of buildings. Distinction between frame and wall carriers. Specification methodology. Applications of imaging of the load-bearing structure in a formwork. Brief reference to the philosophy of prestressed concrete.