LOAD TRANSFER AND DEFORMATION ANALYSES OF PILED-RAFT FOUNDATION IN TAIPEI METROPOLITAN

Piled-raft systems are often suitable for foundations of highrise buildings to increase the bearing capacity and reduce the excessive settlement of foundations. However, the conventional design of the piled-raft foundation commonly ignores the bearing effect of the raft. A parametric study on the piled-raft foundation performance including the bearing effect for typical Taipei Subsoil is investigated using 3D FDM program, FLAC 3D. Input parameters of the parametric study are back calculated from a series of static pile loading tests implemented on the jobsite of TIFC (Taipei International Financial Corporation or Taipei 101). Parametric study results show that the load-carrying ratio of the raft depends on the number of piles of the pile group and the level of loading applied to the piled-raft foundation. This also shows that the raft of the piled-raft foundation is capable of sharing load. In addition, the settlement, differential settlement and bending moment of the piled-raft foundation are also discussed in this article.

並列關鍵字

piled-raft foundation ； load-carrying ratio of the raft ； FLAC 3D ； settlement

國際替代計量

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