EFFECTS OF SOIL-STRUCTURE INTERACTION AND VIBRATION CHARACTERISTICS OF A MID-RISE PILE SUPPORTED RC BUILDING BASED ON HIGH DENSITY MICROTREMOR MEASUREMENT

Abstract

We performed high density microtremor measurements and earthquake observation for a mid-rise RC building which is prepared for seismic retrofitting. S-wave velocity profile of surface around soft ground is estimated and the soil-structure interaction effect on the dynamic characteristics of the building is indicated. Based on the high density measurement, we estimate that the foundation-input-motion and denote the complex three-dimensional vibration characteristics including out-of-plane deformation of the first floor slab.