UM SURABAYAUM SURABAYA

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The Quantity Take Off (QTO) process plays a vital role in preparing construction cost estimates. However, conventional methods, which are still widely used in Indonesia particularly in Self Managed projects often result in volume deviations and require longer processing time. This study investigates the application of Building Information Modeling (BIM) using Autodesk Revit for QTO in the construction of an eight-story hospital project carried out through self-management. This project is under construction. A quantitative experimental method was employed by comparing the QTO results of concrete and reinforcement in major structural elements from both approaches. The findings indicate that the average deviation for concrete volume was 1.21%, while the average deviation for steel reinforcement was 1.75%. The highest concrete deviation occurred in shear walls (3.70%) due to differences in volume calculation for openings and elevation variations, whereas the highest reinforcement deviations were found in columns (2.72%) and beams (2.63%) as the conventional approach tends to simplify reinforcement details such as lengths, splices, and bends. The study concludes that BIMbased QTO is not only technically more reliable but also addresses the limitations of human resources in Self Managed projects. Therefore, adopting BIM is strongly recommended as a digital transformation strategy for more efficient quantity management in infrastructure projects in Indonesia.

This study demonstrates that the application of Building Information Modeling (BIM) using Autodesk Revit for the Quantity Take Off (QTO) process in an eight-story Self Managed hospital construction project provides more efficient, accurate, and transparent results compared to conventional methods.The research highlights the benefits of automated material quantity calculations through 3D modeling, particularly relevant for projects with limited workforce.The findings indicate acceptable deviations of 1.75% for reinforcement weight, reinforcing BIMs role as a strategic solution for enhancing the performance of Self Managed construction projects.

Berdasarkan hasil penelitian ini, beberapa saran penelitian lanjutan dapat dipertimbangkan untuk memperluas pemahaman dan penerapan BIM dalam proyek konstruksi swakelola di Indonesia. Pertama, penelitian lebih lanjut dapat dilakukan untuk menginvestigasi dampak penerapan BIM terhadap aspek lain dari manajemen proyek, seperti penjadwalan, pengendalian biaya, dan manajemen risiko, untuk mendapatkan gambaran komprehensif tentang manfaat BIM secara keseluruhan. Kedua, studi komparatif perlu dilakukan dengan membandingkan kinerja BIM pada berbagai jenis proyek swakelola, termasuk proyek infrastruktur, bangunan komersial, dan perumahan, untuk mengidentifikasi praktik terbaik dan menyesuaikan strategi implementasi BIM sesuai dengan karakteristik proyek yang berbeda. Ketiga, penelitian dapat difokuskan pada pengembangan modul pelatihan BIM yang disesuaikan dengan kebutuhan tenaga kerja lokal, khususnya dalam proyek swakelola yang seringkali memiliki keterbatasan sumber daya manusia yang terlatih, sehingga dapat mempercepat adopsi BIM dan meningkatkan kompetensi sumber daya manusia di industri konstruksi Indonesia.

  1. Analysis of Quantity Take Off Deviation Using BIM Method (Case Study of Construction of a Satpol PP Building)... doi.org/10.47134/scbmej.v1i3.2828Analysis of Quantity Take Off Deviation Using BIM Method Case Study of Construction of a Satpol PP Building doi 10 47134 scbmej v1i3 2828
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