The FBD “Irkutsk Frame” system (rigid frame bracing system with diaphragms) is presented. Structural features of the design of a unit of the column-girder system and its assembling are described in details. Issues of reducing labor expenditures and resources for producing details and their assembling are considered. Examples of using the FBD “Irkutsk Frame” system under conditions of Irkutsk, seismically active region of construction, are presented. It is noted that the equipment for manufacturing products of the FBD “Irkutsk Frame” system is mainly domestic production.