RONIYASARI, PUTRI DWI (2025) ANALISIS AKURASI PERHITUNGAN QUANTITY TAKE OFF DAN BIAYA PEKERJAAN STRUKTURAL DENGAN METODE KONVENSIONAL DAN BUILDING INFORMATION MODELLING (BIM 5D) (Studi Kasus Proyek Pembangunan Kantor PT Power Utama Propertindo). S1 thesis, Universitas Mercu Buana Jakarta.
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Abstract
Inaccuracies in quantity take-off calculations remain a challenge in construction projects, potentially leading to material surplus and cost overruns. Based on an interview with the Project Manager of the Office Building Construction Project for PT Power Utama Propertindo, excess materials were found, including 11 D10 steel bars on the second-floor beam work and 4 D16 steel bars on the third-floor column work. This study aims to analyze the comparison of volume and cost estimation accuracy between the conventional method and the Building Information Modeling (BIM) 5D method using Tekla Structure software. The research method used is a case study with a quantitative approach, involving 3D modeling based on shop drawings and automatic volume extraction using the organizer feature in Tekla Structure. The results show that the BIM 5D method produces more accurate and integrated calculations, with volume differences in structural elements including concrete at 31.68 m³ (5.65%), formwork at 192.74 m² (3.7%), and reinforcement steel at 2,751.08 kg (3.07%). The resulting cost difference reached Rp210,280,550.38, equivalent to an efficiency of 3.43%. Thus, the application of BIM 5D has proven to be more efficient than the conventional method in terms of quantity take off accuracy and construction cost control. Keywords: Building Information Modelling (BIM), Convetional, Quantity Take Off (QTO), Cost Ketidaktepatan dalam perhitungan volume pekerjaan (quantity take off) masih menjadi tantangan dalam proyek konstruksi, yang dapat menyebabkan sisa material dan potensi pembengkakan biaya. Berdasarkan hasil wawancara dengan Project Manager pada proyek Pembangunan Kantor PT Power Utama Propertindo, ditemukan sisa material berupa 11 batang besi D10 pada pekerjaan balok lantai 2 dan 4 batang besi D16 pada pekerjaan kolom lantai 3. Penelitian ini bertujuan untuk menganalisis perbandingan akurasi perhitungan volume dan biaya antara metode konvensional dan Building Information Modeling (BIM) 5D dengan menggunakan software Tekla Structure. Metode yang digunakan adalah studi kasus dengan pendekatan kuantitatif melalui pemodelan 3D berdasarkan shop drawing dan ekstraksi volume secara otomatis menggunakan fitur organizer pada Tekla Structure. Hasil penelitian menunjukkan bahwa BIM 5D menghasilkan perhitungan yang lebih akurat dan terintegrasi, dengan selisih volume pada elemen struktur: beton sebesar 31,68
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