Based on finite element analysis of high-rise buildings whose transfer stories are set at the first story and act as open floor,this paper discusses three types lateral stiffness control parameters of transfer story: story lateral stiffness ratio,equivalent shear stiffness ratio and equivalent lateral stiffness ratio.

For the steel frame structures, a study is carried out on the relationship between the lateral limit load capacity and the story lateral stiffness considering the vertical load s effect on the column s limit moment, P-Δ effect and yielding strength of steel.

In the reinforced concrete shear wall structure and frame-shear wall structure,the story sidesway stiffness of shear wall is complex,it is relative to story height of structure and flexure rigidity of shear wall,and also to disribution type of horizontal forces acting on the shear wall.