Pile Foundation Analysis on High - Rise Building using Finite Element-Spring Method on Sandy Clay Soil

Abstract

It is a common thing used by a planner to get the pile foundation needs with the finite element program. The output generated from the finite element program is then processed to produce the required number of piles on the planned structure. The finite element program that is often used is SAP2000. From several cases in the field, there were differences in the results of the number of piles needed between the analysis using the manual calculation method with the Nakazawa method. So, in this paper a comparison of the need for piles based on the manual calculation method with Nakazawa method will be compared, which is devoted to soft soil material according to soil data. The results showed that the number of pile requirements based on the Nakazawa method (n = 244 pieces) was much smaller than the manual calculation method (n = 320 pieces). This shows that the analysis of pile needs is more effective with the use of the Nakazawa method.