Brace corner connection and brace center connection design as brace connections are made automatically according to the Design, Calculation and Construction Principles of Steel Structures (ÇYTHYEDY) (GKT and YDKT) and AISC 360-16 (ASD and LRFD) regulations. Bolt, weld and plate controls, geometry controls and strength controls are done automatically in accordance with the steel connection type. Brace connections are hinged connections and connection definition is made automatically in the analysis model.