Analisis Perbandingan Waktu Dan Biaya Antara Volume Manual Dengan Volume Building Information Modeling (BIM) Pada Pekerjaan Struktur Proyek Rumah Sakit Mitra Keluarga Sidoarjo

Abstract

Pembangunan Rumah Sakit Mitra Keluarga Sidoarjo direncanakan memiliki enam lantai dengan luas bangunan 11.480 m2, yang memerlukan perencanaan yang efisien untuk menyelesaikan tepat waktu. Penelitian ini bertujuan untuk menganalisis dan membandingkan secara kuantitatif aspek waktu dan biaya antara perhitungan volume manual dari Bill of Quantity (BoQ) proyek dengan perhitungan volume otomatis melalui Quantity Take-Off (QTO) berbasis Building Information Modeling (BIM). Metodologi penelitian melibatkan pemodelan struktur bangunan 3D menggunakan Autodesk Revit berdasarkan Detailed Engineering Design (DED) untuk menghasilkan volume QTO. Data volume dari kedua metode (BoQ Proyek dan QTO BIM) kemudian digunakan untuk menghitung durasi pekerjaan berdasarkan analisis produktivitas dari Master Schedule proyek dan menyusun dua skenario jadwal terpisah menggunakan Microsoft Project. Selanjutnya, estimasi biaya untuk kedua skenario dihitung menggunakan Analisis Harga Satuan Pekerjaan (AHSP). Hasil analisis menunjukkan bahwa volume QTO BIM secara konsisten lebih kecil, dengan selisih pada pekerjaan bekisting 7,10%, pembesian 5,52%, dan pengecoran 6,47%. Perbandingan penjadwalan menghasilkan total durasi 297 hari untuk skenario BIM, 3 hari lebih singkat dibandingkan 300 hari untuk skenario BoQ Proyek. Dampak paling signifikan terlihat pada biaya, di mana estimasi berbasis BIM menghasilkan total biaya Rp 73.731.937.829, menunjukkan potensi penghematan sebesar Rp 5.638.905.965 dibandingkan dengan estimasi berbasis BoQ Proyek. Penerapan BIM memberikan akurasi perhitungan volume yang dengan mengeliminasi tumpang tindih, yang secara langsung berimplikasi pada efisiensi biaya yang substansial . Meskipun pengaruhnya terhadap durasi total proyek tidak signifikan, keunggulan BIM dalam akurasi estimasi volume dan biaya menjadikannya alat yang sangat berharga untuk perencanaan dan pengendalian proyek konstruksi berskala besar. ================================================================================================================================ The construction of Mitra Keluarga Sidoarjo Hospital is planned to have six floors with a building area of 11,480 m², requiring efficient planning for timely completion. This study aims to quantitatively analyze and compare the time and cost aspects between manual volume calculations from the project's Bill of Quantity (BoQ) and automated volume calculations through a Building Information Modeling (BIM)-based Quantity Take-Off (QTO). The research methodology involves 3D modeling of the building structure using Autodesk Revit based on the Detailed Engineering Design (DED) to generate QTO volumes. Volume data from both methods (Project BoQ and BIM QTO) was then used to calculate work durations based on a productivity analysis of the project's Master Schedule and to develop two separate schedule scenarios using Microsoft Project. Subsequently, cost estimates for both scenarios were calculated using Unit Price Analysis (AHSP). The analysis results show that the BIM QTO volumes were consistently smaller, with differences in formwork of 7.10%, reinforcement of 5.52%, and concrete works of 6.47%. The schedule comparison resulted in a total duration of 297 days for the BIM scenario, 3 days shorter than the 300-day duration for the Project BoQ scenario. The most significant impact was observed in the cost, where the BIM-based estimate yielded a total cost of IDR 73.731.937.829, indicating a potential saving of IDR 5.638.905.965 compared to the Project BoQ-based estimate. The application of BIM provides higher accuracy in volume calculation by eliminating overlaps, which directly implies substantial cost efficiency. Although its impact on the total project duration was not significant, BIM's superiority in the accuracy of volume and cost estimation makes it a highly valuable tool for the planning and control of large-scale construction projects

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Last time updated on 15/12/2025

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