KSCE Journal of Civil and Environmental Engineering Research (대한토목학회논문집)

Korean Society of Civil Engeneers (대한토목학회)
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A Compensation Method and Comparative Analysis of Historical Unit Price Considering Work Types for Large and Small-Scale Projects

공종별 특성을 고려한 대·소규모 공사의 실적공사비 비교 및 보정방안

  • 홍성호 (대한건설정책연구원) ;
  • 이동욱 (제주대학교 토목공학과(해양과환경연구소))
  • Received : 2013.07.19
  • Accepted : 2013.10.08
  • Published : 2014.02.01
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Abstract

Recent historical unit price is presented by the Korea Institute of Construction Technology (KICT) and it is analyzed by data from large-scale projects. Therefore it has problem applying to small-scale projects. To indicate the problem, the study compared historical unit price of large-case project and small-case project in the case of civil engineering work, building construction, and mechanical facility work. As a result, average historical unit price of small-scale project was 26.6% higher than large-scale project. On the other hand, difference on the labor cost was 18.4%, difference on material cost and overheads were 8.18%. Moreover, the study proposed compensation method to correct to apply recent historical unit price to small-scale project.

현재 실적공사비 단가는 한국건설기술연구원에 의해 발표되고 있으며, 대규모 공사에서 수집된 공사비 자료를 분석하여 작성되고 있다. 따라서 소규모 공사의 경우 현행 실적공사비 단가를 적용함에 있어 불합리한 문제점이 발생하고 있다. 이러한 문제점을 분석하기 위해, 본 연구에서는 대 소규모 토목, 건축, 기계설비공사에 대한 실적공사비를 상호 비교하였다. 그 결과, 소규모 공사의 실적공사비는 대규모 공사에 비해 평균적으로 26.6%가 높음을 확인할 수 있었다. 한편, 노무비에 의한 대 소규모 공사의 실적공사비 차이는 18.4%이고, 재료비 경비에 의한 차이는 8.18%인 것으로 분석되었다. 또한 본 연구에서는 이를 시정하기 위한 소규모 공사의 실적공사비 보정방안을 제안하였다.

Keywords

References

  1. Construction Association of Korea (CAK) (2009a). Statistics yearbook of construction industry (in Korean).
  2. Construction Association of Korea (CAK) (2009b). Analyses of cost items in complete works (in Korean).
  3. Construction Association of Korea (CAK) (2010). Historical cost data estimating system, What is problems and How can improve?, CAK's internal materials (in Korean).
  4. Choi, S. I., Lee, B. N., Lee, S. W. and Choi, M. S. (2006). An assessment and improvement scheme of a new cost estimation system in Korean public construction industry(II), Construction and Economy Research Institute of Korea (CERIK) (in Korean).
  5. Ha, G. J., Choi, M. K, Yi, D. Y., Lee, Y. S., Kang, T. K. and Ha, M. S. (2008). "A study on the application methods of historical data cost method by historical data analysis in construction cost." Proceedings of AIK Branch Federation Conference, pp. 531-534 (in Korean).
  6. Jeon, S. H. and Koo, K. J. (2008). "Comparison of labor input from standard quantities per unit and actual quantities in apartment reinforced concrete work." Journal of Korea Institute of Construction Engineering and Management, Vol. 9, No. 2, pp. 182-189 (in Korean).
  7. Jun, S. H. and Choi, I. S. (2005). "A study on the construction cost estimating system based on historical data in apartment housing." Journal of Korea Institute of Building Construction, Vol. 5, No. 1, pp. 111-122 (in Korean). https://doi.org/10.5345/JKIC.2005.5.1.111
  8. Kang, L. S., Jeong H. W., Kwon J. H. and Youn, S. M. (2006). "Improvement method of cost estimating based on actual unit price for small size construction." Proceedings of 2006 Annual Conference, pp. 1060-1063 (in Korean).
  9. Korea Institute of Construction Technology (KICT) (1998). Research report for accumulation and implementation of historical unit price, 2nd Report (in Korean).
  10. Korea Institute of Construction Technology (KICT) (2008). Current situation of cost estimate system for public construction project in Korea, KICT's internal materials (in Korean).
  11. Kim, G. H. (2008). A compensation method of historical unit price for public construction projects, Chung-Ang University, Master's Thesis (in Korean).
  12. Kim, K. S., Hyun, C. T., Hong, T. H., Jo, S. M. and Mun, H. S. (2010). "Development of an unit cost modification model for proper actual cost data in small building construction projects." Journal of Korea Institute of Building Construction, Vol. 10, No. 1, pp. 81-89 (in Korean). https://doi.org/10.5345/JKIC.2010.10.1.081
  13. Korea Specialty Contractors Association (KOSCA) (2009). Statistics Yearbook of Special Construction Industry (in Korean).
  14. Ministry of Land, Transport and Maritime Affairs and Korea Institute of Construction Technology (KICT) (2004-2011). Works and unit prices for application of historical cost data estimating system in construction projects (in Korean).
  15. Ministry of Land, Transport and Maritime Affairs and Korea Institute of Construction Technology (KICT) (2010). Conference proceedings of committee for improvement of for historical cost data estimating system (in Korean).

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