Based on some comparisons between the advantages and disadvantages of the two structural systems and the shaking table tests had verified that the preliminary design has a good seismic performance,the special concentrically braced steel frame with pinned connections was selected for the main building of a large thermal power plant.

The multilayer hinged frame structure with bracing doesn t have the flaws of the rigid frame structure as the abo.

During the design, the advantages of steel structure are noticed to form the solution of a combination of steel frame-braced frame and steel transfer truss.