Comparison of Using Conventional Estimating and Sketchup Pro for Bill Quantity Takeoff Process

Nadia Diandra, Daffira Ceisya, Farid Farid

Abstract


Departing from academic anxiety that the construction industry in Indonesia has made rapid progress with the adoption of computing technology and methods in recent years. Increasing infrastructure development encourages construction actors to effectively and efficiently improve project quality. However, the role of the quantity surveyor becomes crucial in facing challenges such as manual quantity picking which is prone to errors and cost estimation that is difficult to do based on rough schematic design. In the context of traditional construction projects, quantity lists are arranged based on 2D drawings, but the use of 3D models has diminished since the adoption of BIM. Sketchup, as a 3D modeling software, and its extension Quantifier Pro provide a solution by combining 3D models to produce accurate quantity takeoff calculations on the Bill of Quantity. This research aims to develop methods to improve the quantity accuracy of elements of an incomplete or incorrect Sketchup model, in the hope of reducing modeling time, improving quantity retrieval performance, and making Sketchup-based cost estimation more effective and efficient in the context of construction. This research method involves 3D modeling using the Sketchup Pro application, using secondary data in the form of Detailed Engineering Design (DED) working drawings. Volume calculation in the Bill of Quantity is done with the help of Sketchup Pro software. The research location is in the Mullberry Cluster residential project, Bekasi City, West Java. The house building in this project was chosen as an object of comparison between conventional calculation methods and calculation methods using Sketchup Pro software. The main focus is to overcome the challenges of manual quantity picking and cost estimation from rough schematic design, emphasizing the crucial role of quantity surveyors. The results showed that the use of 3D models in Sketchup can increase the accuracy of cost estimation and reduce modeling time. The conclusion of the study confirms that Sketchup as an effective alternative solution in increasing efficiency and accuracy in the construction process, especially in the context of taking the quantity of architectural work elements, contributes positively to the development of more sophisticated cost estimation methods in the Indonesian construction industry.


Keywords


Construction Industry, Quantity Surveyor, Sketchup and Quantifier Pro, 3D Quantity Capture

Full Text:

PDF

References


Aditya, I.R. & Irianto, D.D.M.T., 2020. Penerapan Media Pembelajaran 3D Sketchup Untuk Meningkatkan Hasil Belajar Siswa. Jurnal Kajian Pendidikan Teknik Bangunan, 6(1), pp.1–6.

Alder, M.A., 2006. Comparing time and accuracy of building information modeling to on-screen takeoff for a quantity takeoff of a conceptual estimate. School of Technology Brigham Young University, p.105f.

Arisman, A., 2018. Hubungan antara Penggunaan Software Pemodelan Arsitektur dengan Kompleksitas Bangunan. Jurnal Lingkungan Binaan Indonesia, 7(1), pp.56–61.

Diputra, G.A., Wiranata, A.A. & Kharisma, A., 2023. Perbandingan Bill of Quantity (Boq) Antara Dokumen Kontrak Dengan Hasil Perhitungan Tekla Structures (Studi Kasus: Proyek Gedung Mall Di Pulau Jawa). Jurnal Spektran, 11(1), p.55.

Hartmann, T., Gao, J. & Fischer, M., 2008. Areas of Application for 3D and 4D Models on Construction Projects. Journal of Construction Engineering and Management, 134(10), pp.776–785.

Hassan, A., 2015. Effectiveness of 3D modelling in construction industry using sketchup in reducing time and cost of project. … Institute of Information Technology. Retrieved April.

Jiang, L. et al., 2020. Information Integrated Management of Prefabricated Project Based on BIM and Knowledge Flow Based Ontology. In Construction Research Congress 2020: Project Management and Controls, Materials, and Contracts - Selected Papers from the Construction Research Congress 2020. pp. 249–258.

Khosakitchalert, C., Yabuki, N. & Fukuda, T., 2019. Improving the accuracy of BIM-based quantity takeoff for compound elements. Automation in Construction, 106.

Lee, S., Kim, K. & Yu, J., 2015. Ontological inference of work item based on BIM data. KSCE Journal of Civil Engineering, 19(3), pp.538–549.

Lee, S.K., Kim, K.R. & Yu, J.H., 2014. BIM and ontology-based approach for building cost estimation. Automation in Construction, 41, pp.96–105.

Monteiro, A. & Poças Martins, J., 2013. A survey on modeling guidelines for quantity takeoff-oriented BIM-based design. Automation in Construction, 35, pp.238–253.

Mulyono, B., Zain, H.A. & Sudibyo, G.H., 2022. Analisis Perbandingan Efektifitas Metode Konvensional Dan Bim Pada Elemen Struktur Beton (Studi Kasus Gedung Pelayanan Pendidikan Fisip Unsoed). Jurnal DISPROTEK, 13(1), pp.37–44.

Pratama Putra, A.R., Apriani, W. & Winayati, 2022. Penerapan Software 3d Sketchup dalam Perhitungan Rencana Anggaran Biaya Gudang Water Treatment Plant di Rasau Kuning Kabupaten Siak. Jurnal Karya Ilmiah Multidisiplin (JURKIM), 2(1), pp.11–17.

PUPR, K.P.U. dan P.R., 2018. Prinsip Dasar Sistem Teknologi Bim Dan Implementasinya Di Indonesia. Modul 3, 6(1), pp.1–8.

Shen, Z. & Issa, R.R.A., 2010. Quantitative evaluation of the BIM-assisted construction detailed cost estimates. Electronic Journal of Information Technology in Construction, 15, pp.234–257.

Suwarno, S. & Afandi, 2022. Analisis perbandingan Codeigniter dan Yii framework pada perancangan website rencana anggaran biaya. Jurnal CoSciTech (Computer Science and Information Technology), 3(3), pp.249–258.

Yilmaz, G., Akcamete, A. & Demirors, O., 2023. BIM-CAREM: Assessing the BIM capabilities of design, construction and facilities management processes in the construction industry. Computers in Industry, 147.

Zima, K., 2017. Impact of information included in the BIM on preparation of Bill of Quantities. In Procedia Engineering. pp. 203–210.




DOI: http://dx.doi.org/10.33087/talentasipil.v7i1.473

Refbacks

  • There are currently no refbacks.


Creative Commons License
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Jurnal Talenta Sipil, Faculty of Engineering, Batanghari University
Adress: Fakultas Teknik, Jl.Slamet Ryadi, Broni-Jambi, Kec.Telanaipura, Kodepos: 36122, email: talentasipil.unbari@gmail.com


Creative Commons License This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.