A STUDY ON SEISMIC RESPONSE EVALUATION BY MONOLITHICANALYSIS OF BUILDING AND ITS FOUNDATION

摘要

In order more exactly to verify structure safety of the whole building including a foundation structure,the monolithic analysis model to have unified superstructure, ground, and pile foundation was proposed. Astatic nonlinear push over analysis was done by means of a monolithic analysis model. Then, force -displacement relationship, rigidity, and strength was compared with a conventional foundation fixingmodel.Force - displacement in relation to, a growth of a natural period accompanied with a deformation ofa pile, and a local non-linearity of a ground in the periphery of a pile is included in it by a monolithicanalysis model．Consequently, a difference was seen by a modified performance of a frame and collapsemode with a foundation fixing-model and monolithic analysis model. Force - displacement relation wasapplied to an equivalence single-degree-of freedom system model including a foundation that it calculatedwith a monolithic analysis model. By this, a method to estimate the response point to have considered adynamic interaction effect at seismic time was proposed. In addition, a response point by a capacityspectrum method was compared as enforcing a time history seismic response analysis by a sway-rockingmodel. A this result, response point by a monolithic analysis model became a safely neighboringevaluation.