Experimental Investigation of Bearing Structure as Seismic Resilience in the Case of an Earthquake
摘要
This research addresses the problem of mitigating the devastating impact of earthquakes on buildings by enhancing their seismic resilience. The study focuses on developing a seismic damping structure using ball and roller bearings to reduce the transmission of vibrations from the ground to the building during an earthquake. A small-scale prototype was created, and an experimental setup was designed, which involved a motor-driven shake table simulating earthquake conditions. The structure's vibration absorption was measured using MPU6050 sensors at the base and the top of the building model. The methodology included testing two types of bearings—ball bearings and roller bearings—with diameters of 8 mm and 10 mm. The results showed that the ball bearings, particularly with a diameter of 10 mm, were the most effective, achieving a 97.2% reduction in transmitted vibrations, compared to 91.91% for the 8 mm roller bearing. These findings suggest that ball-bearing-based damping systems hold significant potential for improving the seismic resilience of buildings.