KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
권호 표지
DOI QR코드

DOI QR Code

Development of Quantity Take-off Algorithm for Irregularly Shaped Structures using 3D Object

3D기반 비정형 토목구조물 물량산출 알고리즘 개발

  • 하철석 (경상남도 서부권 개발본부) ;
  • 문소영 (경상대학교 토목공학과) ;
  • 문현석 (한국건설기술연구원) ;
  • 강인석 (경상대학교 토목공학과, 공학연구원)
  • Received : 2013.10.15
  • Accepted : 2013.12.21
  • Published : 2014.04.01
Download PDF
⟨ Previous Next ⟩

Abstract

Recently, as the appearance and exterior design of the construction structure are highlighted, the irregularly shaped structures are increasing in a construction facility. Many softwares provide a quantity take-off function of 3D object under BIM environment, however, they are focused on the limited function based on the solid modeling method. Because the vast geometric information of the curved surface is difficult to extract in the 3D objects that consist of major changes in vertical section shape as the irregularly shaped structures, it is difficult to express a 3D object as a solid model. On the other hand, the irregularly shaped structures can be expressed in relatively free in the surface model because the surface model consists of points, lines and surfaces. Accordingly, the surface modeling method is suitable for the modeling of large irregularly shaped structures. This study suggests a quantity take-off algorithm for the irregularly shaped structures using the surface modeling approach that is beneficial in the design work of structures. Some case projects are used for verifying the accuracy of the proposed method.

최근 건설공사에 디자인적 요소가 많이 강조 되면서 비정형 구조물이 증가하고 있다. 이에 따라 여러 소프트웨어들이 BIM환경에서 3D객체의 물량산출기능을 제공하고 있지만, 솔리드 모델기반 정형화된 객체의 제한된 물량산출기능을 제공하고 있다. 비정형 토목 구조물과 같이 수직적 단면형상의 변화정도가 심한 3D객체는 다수의 곡면 표현을 포함하므로 솔리드로 모델링하는데 많은 노력이 필요하며, 해당 모델이 포함한 기하정보의 수가 방대하기 때문에 특정한 단면에 대한 기하정보를 추출하기가 용이치 않다. 이러한 이유로 비정형 구조물을 솔리드 모델의 3D객체로 표현하는 데에는 한계가 따른다. 반면 서피스 모델은 비정형 객체의 형상을 비교적 자유로이 표현할 수 있고, 점, 선, 면으로만 이루어진 모델이기 때문에 정보의 용량이 적다. 따라서 대부분이 복잡한 형태로 방대한 양의 설계작업을 필요로 하는 토목공사의 설계정보 용량을 고려한다면, 서피스 모델링은 토목구조물 설계와 물량산출에 유리한 모델링 방법이 될 수 있다. 본 연구는 건설공사 비정형 구조물의 설계 작업에 유리한 서피스 모델기반의 3D객체를 이용한 비정형 객체의 물량산출 알고리즘을 제시하는 데 목적이 있다. 제시된 방법론은 사례적용을 통하여 수계산 및 기존 솔리드방식의 물량산출결과와 비교하여 정확성을 검증하고 있다.

Keywords

References

  1. Chang, K. T. (2008). Introduction to geographic information systems (4th ed.), McGraw-Hill, Boston.
  2. Du, J. C. and Teng, H. C. (2007). "3D laser scanning and GPS technology for landslide earthwork volume estimation." Journal of Automation in Construction, Vol. 16, No. 5, pp. 657-663. https://doi.org/10.1016/j.autcon.2006.11.002
  3. Han, J. H. and Nam, S. H. (2011). "A study on the automated estimating system using BIM based library." Journal of Korea Institute of Building Information Modeling, Korea Institute of Building Information Modeling, Vol. 1, No. 2, pp. 13-17 (in Korean).
  4. Jun, K. H. and Yun, S. H. (2011). "The case study of BIM-based quantity take-off for concrete and formwork." Journal of Korea Institute of Building Information Modeling, Korea Institute of Building Information Modeling, Vol. 1, No. 1, pp. 13-17 (in Korean).
  5. Kim, C. S. (2011). A study on the modeling method for material take-off of BIM based framework, Master's Thesis, Kyeongsang National University (in Korean).
  6. Kong, J. Y., Kang, H. J. and Yoon, S. J. (2002). "A study on terrain surface modeling and polygon-searching algorithms." Proceedings of The Korea Society for Simulation Autumn Conference, The Korea Society for Simulation, pp. 163-170 (in Korean).
  7. Kwon, O. C., Jo, C. W. and Cho, J. W. (2011). "Introduction of BIM quality standard for quantity take-off." Korea Journal of Construction Engineering and Management, The Korea Institute of Building Construction, Vol. 11, No. 2, pp. 171-180 (in Korean).
  8. Park, Y. J., Oh, Y. S., Cho, C. Y. and Lee, J. B. (2011). "Quantity surveying for structural components using building information model." Proceedings of Korea Institute of Construction Engineering and Management Annual Conference, Korea Institute of Construction Engineering and Management, pp. 20-26 (in Korean).
  9. Shen, Z. and Issa, Raja R, A. (2010). "Quantitative evaluation of the BIM-assisted construction detailed cost estimates." Journal of Information Technology in Construction, Information Technology in Construction, Vol. 15, pp. 234-257 (in Slovenia).
  10. Steel, J. and Drogemuller, R. (2011). "Domain-specific model transformation in building quantity take-off." Proceedings of the 14th International Conference, Willington, New Zealand, pp. 198-212.
  11. Trost, S. M. and Overlender, G. D. (2003). "Predicting accuracy of early cost estimates using factor analysis and multivariate regression." Journal of Construction Management, ASCE, Vol. 129, No. 2, pp. 198-204. https://doi.org/10.1061/(ASCE)0733-9364(2003)129:2(198)
  12. Yilmaz, I. (2009) "A research on the accuracy of landform volumes determines using different interpolation methods." Scientific Research and Essays, Academic Journals, Vol. 4, No. 11, pp. 1248-1259.

Cited by

  1. Development of Active 5D CAD System for Replaning Progress Schedule According to Change of Project Cost vol.17, pp.5, 2016, https://doi.org/10.6106/KJCEM.2016.17.5.054