Pengaruh pengisian beton dan penambahan tulangan untuk perkuatan spun pile terhadap kekuatan dan daktilitas lentur

Abstract

The spun pile is a structural component that can accept lateral loads that cause internal forces in the form of bending moments. In the field, the need to use spun piles as the foundation of a building has been widely used. However, the availability of spun pile types in the area is sometimes not under the strength requirements of the building, and it can be insufficient or even vice versa. This resulted in the use of spun piles being less effective and efficient. This research was conducted to find out the effect of the spun pile when the inside of the spun pile is filled with concrete and reinforcement. This research begins by finding the ideal mesh size. Carry out a validation test by comparing the moment and deflection values in the numerical modeling compared to the experimental results. The research continued by providing variations on the model by filling the inside of the spun pile with concrete and reinforcement. The mesh size in this model is 30 mm. From the modeling of the three variations that have been carried out, in variation one, there is an increase in strength at the maximum moment of 10,01%. In variation two, there is an increase in strength at maximum moment of 15,72%. In variation three, there is an increase in strength at maximum moment of 16,85%. However, the difference in the results of variation two and variation 3 was not too significant, and there was only an increase in strength of 1.13%.