Korean Journal of Construction Engineering and Management (한국건설관리학회논문집)

Korea Institute of Construction Engineering and Management (한국건설관리학회)
권호 표지
DOI QR코드

DOI QR Code

An Estimating Model for Job-Site Overhead Costs according to Progress Rate

공정률에 따른 아파트 건설공사 현장관리비 산정모델

  • Jeong, Kichang (Korea Institute of Construction Management) ;
  • Lee, Jaeseob (Division of Architectural Engineering, Dongguk University)
  • Received : 2018.05.18
  • Accepted : 2018.07.03
  • Published : 2018.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

Generally, research on construction cost has been done mostly regarding its direct cost, thus model regarding indirect cost lacks attention. This research seeks to introduce a model to predict on-site overhead cost for apartment construction projects, which constitutes a big portion in Korean construction industry. We devised an equation of 9th degree via curve-fitting, using multiple on-site actual expense data, which can be used to calculate per-progress rate, per-day on-site overhead cost. We further show prospective usage of the model by applying it on construction projects sizing about 30 billion won. Regarding the fact that previous studies could not recognize pattern changes of a total on-site overhead cost, this model is worthy of its conveniency and thoroughness, as well as providing reasonal ground for its derivation in predicting on-site overhead cost of apartment construction projects.

일반적으로 공사비에 대한 연구는 직접비 위주로 행해졌으며, 간접비를 면밀하게 산정하는 모델에 대한 연구가 부족하다. 본 연구의 목적은 국내 건설시장에서 큰 축을 차지하는 아파트 건설공사 현장의 현장관리비를 예측하기 위한 모델을 제시하는 것이다. 아파트 건설공사 현장 다수의 전체공사기간 동안의 실비사용 데이터를 분석하여 곡선접합 분석을 통해 공정률별 1일당 현장관리비를 도출할 수 있는 9차방정식을 제안하였으며, 이를 활용하여 300억 규모의 공사의 경우의 현장관리비를 추정하는 결과를 보여줌으로서 활용가능성을 설명하고 있다. 선행연구에서는 총 현장관리비의 규모의 변화패턴을 직접적으로 확인할 수 있는 다항식을 도출한 사례는 없었던 점에 비추어 본다면, 본 연구에서 제시한 모델은 그 편의성과 면밀성에 합리적 근거를 토대로 현장관리비를 예측할 수 있다는 점에서 연구의 기여도가 있다.

Keywords

References

  1. Jeong, K., and Lee, J. (2016). "Improvement of the Calculation Standard for Prolongation cost of Domestic Public Construction Project." Korean Journal of Construction Engineering and Management, KICEM, 17(4), pp. 95-102. https://doi.org/10.6106/KJCEM.2016.17.4.095
  2. Jeong, K., and Lee, J. (2017). "Improvement of the Calculation Standard for Prolongation cost of Long-term Continuing Contracts Construction Project." Korean Journal of Construction Engineering and Management, KICEM, 18(2), pp. 30-37. https://doi.org/10.6106/KJCEM.2017.18.2.030
  3. Jeong, K., Park, Y., and Lee, J. (2012). "Study on introduction of 'Pre-Agreement system for Additional Incidental Cost' related to construction time extension." Korean Journal of Construction Engineering and Management, KICEM, 13(6), pp. 33-44. https://doi.org/10.6106/KJCEM.2012.13.6.033
  4. Kim, H. (2011). "Study on a Model to Deploy Apartment Project Management Manpower." KyungHee Univ, of Seoul, Korea.
  5. Kwon, K., Kim, S., Son, H., Choi, J., and Lee, D. (2010). "Investigation on the Manpower Staffing Plan Utiling Density Analysis Method." Proceedings of the Korean Institute of Building Construction Conference, The Korean Institute of Building Construction, pp. 119-123.
  6. Kwon, M. (2015). "A study on human resources planning for building projects." Hanyang Univ, of Seoul, Korea.
  7. Lee, W., Kim, S., Kim, S., Lee, D., and Won, I. (2010). "A Preliminary Studty on the Efficient Management Manpower Staffing According to the Building Size." Proceedings of the Korean Institute of Building Construction Conference, pp. 191-194.
  8. Woo, H. (2012). "A Study of Cost Management and reduction strategy in construction work." Ulsan Univ, of Ulsan, Korea.
  9. Yang, W. (2017). "A model about manpower allocation of engineer for apartment complex construction using effect of the project risk." Sungkyunkwan University, of Seoul, Korea.