Abstract：Research purposes : The analysis of seismic response of the first railway shielding structure in China is made and the finite element model is established for the shielding structure to calculate the dynamic characteristic. By the response spectrum method, the seismic responses under different foundation and thickness of the top soil are analyzed for the purpose of guiding engineering design and construction.
Research conclusions:(1)When horizontal earthquake happens, the integral structure will show notable seismic effect which should be taken into account in structure design. ( 2 ) The weight of the soil on the top of sideward opening of structure is the main reason for creating seismic effect, so it is necessary to reduce it by tilting the top plate in the sideward opening to enhance the capacity of seismic resistance.
2008, Vol. 25 
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