ANALYSIS OF CONSTRUCTION COST EFFICIENCY BETWEEN PRECAST METHOD AND CONVENTIONAL METHOD IN BUILDING PROJECT

Abstract

The objectives of this research are to analyze how much the cost of building efficiency between precast method and conventional method in Samarinda State Islamic Institute Library Building Project and to analyze the pattern of building price efficiency of precast and conventional construction methods in Samarinda State Islamic Institute Library Building Project. This research uses quantitative research method by analyzing two different data, based on method type, where it uses action research method; looking for the difference and efficiency that can be obtained from two calculation results which are done; and aim to find the most effective way. The results of this research are the efficiency of building price between precast method and conventional method in Samarinda State Islamic Institute Library Building Project is IDR. 341,372,815.86 or 7.12% and the biggest efficiency pattern was obtained from structural work of 2nd Floor and 3rd Floor of the building, this is because the first floor only has two major items: works of Tie Beam and Column. The highest efficiency pattern was obtained from the work of the ground beam as much 3.5% and the column beam was 2.08% and the floor plate was 1.58%. The conclusion of this research is that maximum efficiency for structural component was obtained from the dimension of structure component, which has big dimension.