| 要旨 |
The Ra - Rd curve shows the relationship between rotation angle of the foundation (corresponding to Rd) and the moment of the superstructure (corresponding to Ra) during the earthquake, which can reflect the soil performance under the foundation. In this paper, we want to study the influence of the ground motion on the Ra - Rd curve using field measurement data for 7 strong earthquakes. The results show that the rotation motions of the ground surrounding the building are strong correlated with the accuracy of the Ra - Rd curve. |