• Title/Summary/Keyword: 공사원가

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A Study of Improvements in the Standards of Cost Estimate for the New Excellent Technology in Construction (건설 신기술의 원가산정기준 개선방안에 대한 연구)

  • Lee, Ju-hyun;Tae, Yong-Ho;Baek, Seung-Ho;Kim, Kyoungmin
    • Korean Journal of Construction Engineering and Management
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    • v.23 no.5
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    • pp.65-76
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    • 2022
  • The New Excellent Technology (NET) designation system, introduced in 1989 for the purpose of promoting the development of domestic construction technology and enhancing national competitiveness, reviews the statement of construction cost of new technologies. And the cost reduction effect such as design, construction, and maintenance cost and the effect of reducing the construction duration are evaluated as an evaluation criteria of economic feasibility. However, in this evaluation process, differences of opinion between the institution of construction cost estimating standard management and the new technology developer about unique technologies frequently occur. In addition it is difficult to objectively compare the construction duration with existing similar technologies because there is no information on productivity as the current cost estimating standards for new technologies only present the required amount per unit quantity. In this study, the current state of cost estimating criteria review procedure, evaluation criteria, and cost estimating standards establishment method were analyzed when screening for the designation of a new construction technologies, and compared with overseas cost estimating standards, measures to improve the cost estimating standards of current construction new technologies were suggested. Through the improved cost estimating standards of this study, it is expected that cost information on new technologies will be provided to clients in more detail than the current ones, and the availability and applicability of new construction technologies would be improved by simplifying the construction cost calculation process more.

Construction Cost-Down of Building Substructure by VE Techniques (VE 기법에 의한 건물 지하구조의 공사원가 절감방안)

  • Kim Sun-Kuk;Heo Seong-Soo;Choi Yoon-Ki
    • Korean Journal of Construction Engineering and Management
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    • v.6 no.1 s.23
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    • pp.125-132
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    • 2005
  • Domestic construction firms make every effort to save cost and, contrarily, enhance quality for competitive advantage in the market. Structural work of building construction takes chaise of the total cost and schedule, thus elaborate planning and management of the work help to lead the project into a successful way. Therefore, the idea to save time and cost and enhance constructability securing quality and safety of the work should be developed after analyzing the designed documents and site conditions comprehensively in the initial construction planning phase. Value Engineering (VE) technique is introduced in the substructural work in this paper to save cost creatively and systematically in the design and construction phase. A practical VE model that is applied to the underground building work systematically is proposed to save cost and it applies to the actual project to confirm the effectiveness of the model.

Case Study on the Improvement of Underground Building Works through the VE (VE 적용에 의한 지하 골조공사 개선연구)

  • Hong Jae-Wook;Kim Sun-Kuk;Lee Jong-Kook
    • Korean Journal of Construction Engineering and Management
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    • v.5 no.3 s.19
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    • pp.106-113
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    • 2004
  • Most construction project managers should focus on the reasonable cost-down with same quality and function-enhancement with same cost for the value-added construction project delivery in construction industry. Especially, a building structure construction is one of the most important processes to affect the total cost and schedule in building construction project. It means that the process has the possibility of project cost-down or quality-enhancement among the whole project life-cycle. This research focuses on the importance of underground structure of building project by increasing underground use ratio in the urban building construction projects nowadays. This research adopts VE method for the improvement of cost and time by process and analysis dimension modeling on the underground building structure construction, and verifies it throughout the case study, This research is the basic study on the improvement of underground building works through the value engineering method in construction industry.

Analysis of the present state after establishment & amendment System reorganization of electrical standard estimation (전기부문 표준품셈의 체계개편 이후 제.개정 현황 분석)

  • Kim, H.J.;Hwang, M.S.;Kim, H.J.;Park, I.S.
    • Proceedings of the KIEE Conference
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    • 2008.07a
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    • pp.2081-2082
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    • 2008
  • 본 논문에서는 전기공사의 표준 공사원가 산정기준인 전기부문 표준품셈 체계개편이 2002-2004년까지 있었던 바, 동 체계개편 과정에서의 문제점 보완과 신규 제정 품셈에 대한 현황을 분석하고 공사원가에 미치는 영향 및 품셈 제.개정 과정에서의 문제점 등을 분석하여 합리적이고 객관적인 공사원가 산정기준을 만드는데 기여하고자 체계개편 내용과 동 내용을 적용한 2006년 이후 최근 2년간의 제 개정 현황을 비교하여 종합적으로 분석 표준품셈 제.개정의 합리적 개선방안을 제시하고자 한다.

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A Study on the Cost Estimating Method based on Spatial Unit Focused on Improving Limitation Caused by Lack of Spatial Information of the Cost Based on Work Type (공간단위 공사비 산정방법에 관한 연구 - 공종별 공사비의 공간정보 부재로 인한 한계점 개선을 중심으로 -)

  • Lee, Ki-Sang
    • Korean Journal of Construction Engineering and Management
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    • v.12 no.3
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    • pp.131-139
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    • 2011
  • In this Study, the Cost of Public Facility Construction in the VE Cost Model, and the Progress of the Construction Site Management, and Cost due to the Lack of Cpatial Information in Dispute Cost Work Type Recognize the limits of Historical Information, and to Overcome the Perception of Cost and Space Systems Unit In the Process of Transition that Began Seeking Ways to Improve Through this Study, Different Parts of the Proposed Area of Construction Work Unit System, the Core of Calculating Hourly and Detailed Engineering Information and Cost Information Generated Extension to Configure the Construction Unit in Every Space, Every Work Unit System, All Materials That Make Up Work Unit System, Unit Labor Costs, And All of the Configuration Items Enables Precise And Multidimensional Understanding is That.

A Study on the Method of Estimating Indirect Labor Cost Rate Using the Analysis of Cost Items in Complete Works (완성공사 원가구성 분석에 의한 간접노무비율 산정방법에 관한 연구)

  • Jung Soon-Kil;Lee Hak-Ki
    • Korean Journal of Construction Engineering and Management
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    • v.2 no.2 s.6
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    • pp.81-89
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    • 2001
  • Construction industry has particular properties of non-continuity of production, and non-stability of market comparing to other industries. Because of them, the practical construction cost is more difficultly recognized than in manufacturing industry, so, that is various according to many projects. Therefore, it is very hard work to standardize construction cost, and it is worthy of analyzing and measuring exactly construction cost. On this study, the trouble in producing expected construction cost with original cost calculation method is progressed by the data of cost items in complete works. On the basis of analyzing data, as expected cost of practical construction is measured, it can be referred to the method and the standard of indirect labor cost rate in construction.

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Study of Construction Costs in South and North Korea: Focusing on Construction Cost in Ryomyong Street Project, Pyongyang (남북 건축공사비 연구: 평양 려명거리 사업 건설조립액을 중심으로)

  • Kim, Jang-Han
    • Journal of the Korea Institute of Building Construction
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    • v.22 no.4
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    • pp.371-378
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    • 2022
  • The Ryomyong Street project is the only construction project for which the construction cost is known, but its scale cannot be estimated because it is marked in North Korean Won. In this paper, the construction cost per m2 of North Korean apartment building construction was calculated based on the construction and assembly amount of the Ryomyong Street project. 160 to 1 was calculated as the ratio of the building construction cost per m2 between South and North Korea based on the Ryomyong Street project in Pyongyang and Seoul Housing & Communities Corporation. This ratio can be used to assume the construction size presented in North Korean won as there is no official exchange rate between the two Koreas.

A Study on Development of Construction Standard Production Rates and Cost Analysis for Off-Site Construction (OSC)-Based PC Structure Construction Costs - Comparison with RC Method - (OSC기반 PC구조 공사비 산정을 위한 품셈개발 및 공사비 분석 - RC공법과 비교 -)

  • Lee, Hansoo;Lee, Chiho;Han, Heesu;Lee, Jeongwook
    • Korean Journal of Construction Engineering and Management
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    • v.25 no.2
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    • pp.56-68
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    • 2024
  • A construction standard production rates system for the factory built and on-site installation phases of OSC (Off-Site Construction)-based precast concrete (PC) structures in apartment buildings was recently proposed to establish an objective cost standard (Lee et al., 2021). In addition, the Korean government has taken steps to improve the institutional foundation for the systematic calculation of PC construction costs such as revising construction standard production rates for major components that can be applied to the on-site installation phase of PC method. In this study, we analyzed the results of a field survey of apartment building PC structures and collected expert opinions to develop factory-built and on-site installation standard production rates that can be applied to apartment building PC method. We also propose directions for improving the standard production rates so that they can be applied to the site and component of apartment buildings by comparing them with the current standard production rates. This study also derived the cost characteristics and cost reduction measures of PC construction by calculating the construction costs using the developed rates and comparing the construction costs with the RC methods of apartment buildings of the same scale. The construction standard production rates for PC construction derived in this study are expected to contribute to the spread of PC construction by ensuring the objectivity and consistency of the results of PC methods cost estimation.

An Analysis of Differences between Contract Costs Estimated by the Actual-Cost-Data-based Method and the Quantity-based Method (실적공사비적산제도 도입에 따른 도급금액 변동 분석)

  • Park Chang-Bae;Kim Dong-Young;Kim Ju-Hyung
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2004.11a
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    • pp.510-514
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    • 2004
  • This research is a preliminary one to investigate transitional problems of actual-cost-date-based contract cost estimation method and suggestions for counteracting them. As parts of it, in this paper, the brief background and methods of the new method and contract costs estimated by introducing it are presented. The results of five projects' contract costs are compared to those estimated by the conventional quantity-based method. Comparison of the both is conducted in terms of total contract costs and contract costs according to type of sub-contracts. Finally, the propositional differences of the later to the former are analysed.

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ISSUE & ISSUE-4대 사회보험료 원가반영 절실

  • Park, Jong-Hak
    • 월간 기계설비
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    • no.6 s.191
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    • pp.30-32
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    • 2006
  • 최근 근로소득지원세제(EITC, ’08년) 시행을 위한 건설일용근로자 임금지급조서 신고와 관련하여 설비건설업계는 경영상 최대 위기에 봉착하고 있습니다. 또한 2003년부터 건설일용근로자는 국민연금과 건강보험에 의무가입토록 했으나 이에 소요되는 비용은 건설공사원가에 극히 일부만 반영되고 있는 실정입니다. 그러나 공공공사에 일부 반영된 보험료도 최종 납부자인 하도급자에게는 전액이 아닌 일부만 반영되고 있는 실정입니다. 이처럼 최저가낙찰제 시행으로 수주환경이 극도로 나빠짐은 물론 공사원가도 제대로 계상되지 않는 현실에서 설비건설업계의 현명한 대처능력이 그 어느 때보다도 요구되고 있습니다. 이에 따라 본지는 설비건설업계의 현안문제와 이에 대한 대한설비건설협회의 노력, 설비건설업계 당면과제에 대한 박종학 회장의 언론 홍보 등을 게재하오니 회원사 여러분의 많은 참고를 바랍니다.

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