抄録
In this study, the steel fabrication cost functions for the building frames consisting of box columns and H beams are first shown. These cost functions are applied to two structural design cases A and B of three example buildings. The structures of design case A are consisting of beams of the same depth in X and Y directions and columns of the same depth in the vertical direction. The structures of design case B are designed to make total weight small. Each sum of the material cost and the fabrication cost of these structures is calculated, and the difference of total cost for these cases is discussed.
