パイルド・ラフト基礎の簡易算定法の検討

―沈下剛性と杭頭荷重分担率―

抄録

A simple approach for calculating the behavior of piled raft foundations subjected to a vertical load in homogeneous soils is investigated. The vertical stiffness (K_ana) and the pile head load ratio (Ψ_ana) 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 (K_cal) and the pile head load ratio (Ψ_cal) of piled raft foundations which have various parameters.