The textbook provides general information about main physical and mechanical properties of concrete and reinforced concrete structures necessary for their stress-strain analysis including elastic, plastic design and crack development. Special attention was focused on particularities of concrete and reinforced concrete structures in such areas as designing of floors (slabs, beams, girders), one-storied industrial buildings (girders of transverse frames, transverse trusses, crane girders, columns), roof structures(slabs, beams, trusses), thin shell roofs, multistoried industrial and civil buildings (skeleton type and bearing-wall type constructions). Analysis and design of stone constructions are considered under action of different loads. The textbook is designed for university students of aviation and building specialties as well as engineers of designing, building and operating airports, industrial and civil constructions. For students of higher education institutions doing the courses in the branch "Civil engineering".