2012•Journal of Structural and Construction Engineering (Transactions of AIJ)Open access

STUDY ON SIMPLE APPROACH FOR BEHAVIOR OF PILED RAFT FOUNDATION

Tsutomu Tsuchiya, Toshiaki Nagao, Hiroshi NAGAI

Abstract

A simple approach for calculating the behavior of piled raft foundations subjected to a vertical load in homogeneous soils is investigated. The vertical stiffness (Kana) and the pile head load ratio (Ψana) of piled raft foundations were clarified based on parametric studies by the hybrid method, and these values were compared with the results using the AIJ formula. As a result, we presented the new simple method for quickly and easily calculating the vertical stiffness (Kcal) and the pile head load ratio (Ψcal) of piled raft foundations which have various parameters.

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Key concepts: Raft, Pile, Parametric statistics, Stiffness, Geotechnical engineering, Foundation (evidence), Structural engineering, Simple (philosophy)