초록 |
Three-dimensional calculation model is established for the free-field shaking table model test, which is a part of the shaking table model test for typical subway station structure in soft soil in Shanghai. The model includes four aspects: the determination of calculation area, the choice of material constitutive models, the selection of dynamic boundary condition and the inputing of seismic wave. Three-dimensional fitting analysis on this model test by the calculation model is done. The results are compared with the test results and calculation results of 2-D model, and it shows a good coincide among three methods. The result indicates that the 3-D calculation model can be used to simulate the dynamic characteristic of model soil and provide a foundation to establish 3-D calculation method of seismic response for Shanghai soft soil. |