Evaluation of seismic loads on structures considering soil-foundation-structure interaction via centrifuge

Abstract

Earthquake is one of the most destroying natural hazards causing the damage to human lives and economy. The exact evaluation of the soil-foundation-structure interaction (SFSI) is becoming increasingly important in prevention of damage from the arthquake. This paper focused on the assessment of SFSI effects on the seismic load of the structure with various types of foundations. The dynamic centrifuge tests for the shallow foundation, deep basement and pile foundation were performed and the representative results are introduced. The SFSI effects can reduce the seismic load applied to the SDOF structures on the shallow foundation, but also increase the load for the basement and the pile cap when the foundation is fully embedded.