DESIGN METHOD OF BASE ISOLATION BUILDING AND SPECIAL BUILDING CONSTRUCTED IN THE METHOD

摘要

PURPOSE: To secure an optimum earthquake-proof device easily by supporting a building with standard type laminated rubber and an elasto-plastic type damper, while performing the design on the basis of the graph made out at each energy equivalent speed (by ground). ;CONSTITUTION: A building 1 is supported by standard type laminated rubber 2 with a form of 20 to 30 or so in a primary form factor, and more than five in a second form factor, and being used under the condition that normal surface pressure is 100 to 200kg/cm² and less than 250% or so in shearing deformation rate, and an elasto-plastic type damper 3. Data values of this laminated rubber 2 and the elasto-plastic damper 3 are determined on the data of various graphs that 1) relations between a base shear coefficient and maximum displacement are showed at each period, 2) relations between the period and the maximum displacement are shown at each the damper's yield shearing force factor, 3) a laminated rubber diameter and the surface pressure and shown at each period, 4) relations between axial force and a rubber diameter are shown in describing the surface pressure as a parameter, and 5) relations between horizontal rigidity and the diameter are shown at each secondary form factor, respectively. In brief, the period of the building 1, yield shearing force of the damper 3, specifications of the laminate rubber 2, size of the damper 3 and the number of mounting pieces are all determined. With this constitution, an optimum design is performable.;COPYRIGHT: (C)1996,JPO