Study on Direct Design Method for Isolated Structure
XIU Minghui
TAN Ping
TENG Xiaofei
Abstract：In this paper, a direct design method for isolated structure is put forward, in which the procedure of the equivalent damping ratio and the equivalent stiffness of the isolated layer is also introduced. The systematical comparison of the proposed direct design method and the current two-stage method is made herein for structural internal forces, displacements, the amount of steel, etc. The results show that there is little difference in the total steel consumption between the two methods. However, the steel mass consumed for both design method is quite different according to the type of components, the plane positions and heights. The proposed direct design method for isolated structure can simplify the design step and reduce the calculation significantly, which is accepted as the recommended isolation design method in "Code of design for seismic isolation buildings" in China and convenient for wide use of seismic isolation in China.
Keywords：The direct design methodThe equivalent damping ratioEquivalent stiffnessIterative methodPartial design method
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：8( 92-99 )