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Volume 34 Issue 11
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CHEN Ren-peng, GU Ming, KONG Ling-gang, ZHANG Zhe-hang, CHEN Yun-min. Large-scale model tests on high-rise platform pile groups under cyclic lateral loads[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(11): 1990-1996.
Citation: CHEN Ren-peng, GU Ming, KONG Ling-gang, ZHANG Zhe-hang, CHEN Yun-min. Large-scale model tests on high-rise platform pile groups under cyclic lateral loads[J]. Chinese Journal of Geotechnical Engineering, 2012, 34(11): 1990-1996.
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Large-scale model tests on high-rise platform pile groups under cyclic lateral loads

  • 1. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; 2. Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Hangzhou 310058, China; 3. Zhejiang Electric Power Design Institute, Hangzhou 310014, China

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  • Received Date: January 13, 2012
  • Published Date: December 19, 2012
    Graphical Abstract
    • Abstract
  • Large-scale physical model tests are carried out to study the mechanical characteristics of high-rise platform pile groups subjected to cyclic lateral loads such as wave, tidewater and wind, etc. They are conducted in silts, which consist of nine steel-pipes in a closely-spaced arrangement. The response of pile groups and its variation under cyclic loading conditions are discussed. The results indicate that the cyclic loading produces plastic deformation within soil around piles. The lateral stiffness of pile-soil system decreases with cycling, and the lateral load carried by each pile is redistributed during repeated loading. The previous cyclic loading influences the stiffness of piles in the next loading stages. The effect induced by the cyclic loading is more important for group-pile than a single pile, which can be estimated by a multiplier based on the p-y curve method. Finally, a comparison between the calculated results and those obtained by other different methods is presented.
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    • References (14)
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