MONITORING AND EFFECTS OF DYNAMIC INTERACTION ON BUILDING RESPONSE REDUCTION OF TWO LOW-RISE SCHOOL BUILDINGS HAVING DIFFERENT TYPES OF FOUNDATIONS

This paper presents the results of comparing the acceleration reduction caused by soil-structure interaction in two low-rise buildings with different foundation types. From the observation records, the pile foundation has a greater acceleration reduction compared to the spread foundation. An analytic procedure to predict the reduction caused by dynamic interaction is also presented. The difference in transfer function value at the natural frequency between the base-fixed and sway-rocking models indicates the effect of inertial interaction, while the difference between the free surface and the base input represents the effect of kinematic interaction.