Dynamic characteristics of the pile under horizontal vibration loading
HAN Hongxia1，2, CUI Wuwen3, LI Yurun2
1. Department of Civil Engineering, Tianjin University, Tianjin 300072, China;
2. Department of Civil Engineering, Hebei University of Technology, Tianjin 300401, China;
3. Tianjin University of Finance Economics, Tianjin 300222, China
Based on the theory of elastic wave propagation and the mixed boundary problem of radiant stress of circular, the dynamic stiffness and damping of soil around the pile under horizontal harmonic loads can be calculated by using Fourier expansion method, when considering the effect of pile partially separated from soils. Then by applying it to the infinitely thin horizontal layers theory of Novak, the stiffness and damping of the pile and the vibration amplitude level of the pile with the frequency curve are obtained. It is shown that, in the horizontal vibration loads, the dynamic stiffness of pile is smaller than other stiffness, and the horizontal displacement plays an important role in all displacement. The calculated results considering the influence of pile-soil partial separation are less than that of the other literature, which assumed the bonding of the pile with the soil, and are in good agreement with experiments. The calculated results are closer to the test values when the shear modulus of soils is measured by the static test.
韩红霞1,2，崔武文3，李雨润2. 水平振动荷载作用下桩基动力特性[J]. 振动与冲击, 2015, 34(13): 127-132.
HAN Hongxia1，2, CUI Wuwen3, LI Yurun2 . Dynamic characteristics of the pile under horizontal vibration loading. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(13): 127-132.
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