ANALISIS CACAT KONSTRUKSI DENGAN METODE SIX SIGMA PADA PEKERJAAN STRUKTUR BANGUNAN (Studi Kasus: Proyek Icon bali)

Abstract

Construction projects in Indonesia are rapidly developing but often face issues with construction defects that reduce quality. Structural elements that frequently suffer from damage or defects are beams, columns, and slabs. This study aims to identify the dominant types of defects, obtain defect values, determine the causes of these defects, and provide recommendations for corrective actions to reduce construction defects. The research method used is a quantitative descriptive approach. The research process and data analysis utilize the Six Sigma method as a problem-solving tool, which includes the improvement phases of DMAI (Define, Measure, Analyze, and Improve). The analysis results reveal that the dominant types of defects are hollow structural concrete, poorly finished concrete corners, deflection in structural concrete, and hairline cracks in structural concrete. The average sigma defect level for structural concrete columns is 2.8 sigma, for structural concrete beams is 3.7 sigma, and for concrete slabs is 3.4 sigma. The causes of construction defects are attributed to human factors, methods, quality, materials, machine, and the environment. Recommended corrective actions for defects include using grouting methods in areas experiencing defects or damage.