Abstract：A series of shaking table tests on underground station in loess ground were performed, in which the structural acceleration, the strain, soil acceleration, displacement of soil foundation and soil pressure were measured. The simulative effect of boundary, the rules of acceleration responses of model system, and the influence of structure on the responses of model site were analyzed. Meanwhile, the horizontal displacement distribution-rules of model site were revealed and the settlement at surface of model site was analyzed. The seismic damage characteristics of model structure were summarized by observation after the test. The results show that the Fourier spectrum values of accelerations increase at low-frequency components and decrease at high-frequency components form bottom to top of soil. The seismic responses of structure are controlled by surrounding soils in severe earthquake because of strong soil-structure interaction. The seismic propagation in model site is not significantly influenced by structure, and the directional characteristics measured in the surface of ground are more obvious with the increase of PGA of input motions. The results could provide references for aseismic design and theoretical research of underground structures in loess area.
权登州 王毅红 叶丹 井彦林 陈苏. 黄土地区地铁车站振动台试验研究[J]. 土木工程学报, 2016, 49(11): 79-90.
Quan Dengzhou Wang Yihong Ye Dan Jing Yanlin Chen Su. Shaking table test study on subway station built in loess area. 土木工程学报, 2016, 49(11): 79-90.
