Seismic Performance of Geosynthetic Reinforced Soil-Integrated Structure in Shaking Table Test

Abstract:

In this paper, the seismic performance of the geosynthetic reinforced soil-Integrated bridge system(GRS-IBS) structure is analyzed by conducting a set of shaking table test with a full bridge model. The results show that the GRS-IBS structure has a good seismic performance. Under the motion of Kobe seismic wave with a peak acceleration of 0.8g, the overall stability of the structure is good, and only minor deformations occur, such as surface excavation and differential settlement between the bridge beams. Under the premise of keeping the same ratio of Tf to Sv, reducing the reinforcement spacing helps to improve the seismic performance of the GRS abutment.

Key words:flexible abutment; geosynthetic reinforced soil (GRS) composite; geosynthetic; shaking table test; seismic performance