The article discusses the results of a survey of the technical condition of precast reinforced concrete columns of the building of the administrative building of the cotton mill in Shakhty. A calibration calculation for bearing capacity was made taking into account additional loads. Identified extensive damage the main ones are: - destruction of the protective layer of concrete, exposure and corrosive wear up to 10% of the cross section of the working and transverse reinforcement of columns; - cracks in the protective layer of concrete on the surface of the shelves of columns. The technical condition of the building structures of the administrative building for the period of the survey is assessed as unsuitable to the conditions of normal operation (partially operational). A calibration calculation was made and recommendations were developed for restoring the bearing capacity of precast concrete columns.
Keywords: concrete, bearing capacity, reinforced concrete, structures, reinforcement, constant load, strength, operational reliability, deformation, reinforcement