"In order for any structure to resist against external factors in a safe way, all of the structural elements such as foundation, curtain walls, column, beam, flooring, which are formed to transport and transport the load, truss or carrier frame system is used in steel
structures for the selection of the carrier system. As an example in this study, Industry structure with 20*30 m² selected. Frame systems consisting of trapezoidal truss system and steel I profile are used as the system. Bitlis province, central province was chosen as
the snow load region. Snow load Pk=1,85 kN/m² is taken. In the trapezoidal truss system, equal-arm corners are chosen as cross-section. Two examples were resized with the SAP2000 program. According to the results obtained, the trapezoidal truss system is
found to be more economical."