STUDY ON THE DEFORMATION CHARACTERISTIC OF MASONRY WALLS DURING EARTHQUAKE WITH FULL-SIZED MODEL

Abstract

  Vibration tests of the full-sized model of the actual castle masonry wall were executed using the large scale shaking table for evaluating the dynamic characteristics of the masonry wall. A harmonic wave of 3Hz in one axial direction was applied with increasing the input acceleration step by step.
  During these tests, the transition of the deformation mode from rocking mode to the swelling mode was observed around 688gal. And it was clarified that this deformation process was triggered by the increasing difference of the magnitude of response acceleration and response phase angle for each material generated by the increase of the earth pressure and the decrease of the friction angle between masonry stones.