• Title, Summary, Keyword: 공사비 요율방식

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Calculation of Construction Cost Rate to Telecommunications Engineering Service (엔지니어링대가 공사비 요율 산출방법 고찰)

  • Hong, Wan-Pyo;Choi, Kwang-Don
    • Journal of the Korea Institute of Information and Communication Engineering
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    • v.10 no.12
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    • pp.2121-2125
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    • 2006
  • This paper shows the calculation system of construction cost rate to telecommunications engineering service that is based on the tenth article of the Engineering Technique Promotion Law. The existing construction cost rate had been calculated using the experiential statistics or quoted the foreign construction cost rates. This paper apply the theoretical method to calculate the construction cost rate instead of the existing method. To calculate it more reasonably, this paper apply the characteristic own of the current construction cost rate. The result of this paper can be introduced to calculate the construction cost rate for the telecommunication engineering service.

A Study on Improving Pricing Criteria for Post-Construction Evaluation (건설공사 사후평가 용역대가기준 개선방안)

  • Kim, Seok;Lee, Du-Heon;Park, Jae-Woo
    • The Journal of the Korea Contents Association
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    • v.16 no.8
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    • pp.661-670
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    • 2016
  • In 2000, post-construction evaluation was introduced for the purposes to evaluate demand, cost, and construction period of public construction projects and to reduce errors of public order agencies. However, pricing guide of post-construction evaluation has not been established, which becomes a cause of quality degradation of post-construction service and conflict occurrence. This study suggests the pricing guide in the form of percentage of construction cost method and cost plus fee method based on data of post-construction evaluation. This study investigates the construction costs and service costs for post-construction evaluation and conducts the comparative analysis of 'percentage of construction cost method' and 'cost plus fee method.' The analysis result shows 'cost plus fee method' is more accuracy than 'percentage of construction cost method.' In particular, cost plus fee method includes various correction coefficients, such as distance, area, and integration, in order to reflect the project characteristics of each infrastructure, and suggests linear construction (roads, railways), nonlinear construction I (housing and industry complex), and nonlinear construction II (airports, seaports, dams, water and sewage).

Proper Estimating Method for Environmental Preservation Cost in Road Projects (도로공사 환경보전비의 적정 산출 방안)

  • Park, Ji-Sun;Lee, Sea-Hyun
    • Korean Journal of Construction Engineering and Management
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    • v.13 no.2
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    • pp.3-10
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    • 2012
  • The current enforcement regulation of "Construction Technology Management Act" prescribes calculation standard of environmental preservation cost in construction site. According to this standard, environmental preservation cost is calculated by using the quantity-per-unit costing method or applied fixed rate on direct cost. However, when calculated by using the quantity-per-unit costing method it is few items to put in the budget according to standard of construction estimate and in the case of using the fixed rate on direct cost it is not considering various characteristics of the construction site. Therefore, it is needed a improvement plan of estimating method and management system for environmental preservation cost. In this study, it surveyed the actual state of the environmental preservation cost according to magnitude of project, site location, anti-pollution facilities and etc. over 38 road projects. The research reported in this paper environmental preservation cost was variously distributed over construction sites. Thus it needs to estimating method and management system to consider characteristics of construction site for environmental preservation cost.

The Fact-finding and Analysis of the Environmental Management Cost in Construction Projects (건설공사의 환경관리비용 계상 및 운용 실태 분석)

  • Choi, Min-Soo;Kang, Woon-San
    • Korean Journal of Construction Engineering and Management
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    • v.6 no.5
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    • pp.186-192
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    • 2005
  • The purpose of this study is to find the reality of environmental management cost in construction projects and to suggest some policies in order that owners appropriate the environmental management cost reasonably in the construction budget for reducing the environmental pollution at job sites. We surveyed the actual state of appropriating and expending the environmental management cost over 122 construction sites. According to the results of the survey, while the appropriated rate of the environmental management cost was 0.59% of the total construction cost. the expended rate reached at 0.94%. When examining the antipollution facilities which were operated in job sites, the investment for equipment against air-pollution such as tire washer, dust-proof device was relatively higher than other antipollution equipment. As the method appropriating the environmental management cost, we concluded that a quantity-per-unit costing method is more reasonable than appropriating at a fixed rate of total construction cost considering that there is little correlation between total construction cost and the environmental management cost. To do so, antipollution facilities that must be examined at a design or estimation stage of a construction project should be prescribed by the law. Moreover, referenced cost data for the quantity-per-unit costing should be prepared and officially published.

Proposal and Evaluation of the Safety Inspection Cost Estimation Model for Multi-building Construction Project (군집시설물 건설공사의 안전점검 대가 산정모델 제안 및 평가)

  • Kim, Jin-Won;Bang, Jong-Dae;Sohn, Jeong-Rak
    • Journal of the Architectural Institute of Korea Structure & Construction
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    • v.33 no.12
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    • pp.11-18
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    • 2017
  • The safety inspection cost of the construction work was based on commercial facilities classified as a single building. Therefore, it is not possible to fully reflect the characteristics of the multi-building construction project such as apartment houses. Therefore, this study suggests a reasonable estimation model that can fully reflect the characteristics of the multi-building construction project. The safety inspection cost estimation model proposed two models such as construction cost ratio method and cost plus fixed fee method. And these models were simulated by the apartment construction work and compared with the current standard. As a result, the current construction cost ratio method has shown that the safety inspection cost tends to be overestimated as the construction size increases. Therefore, the proposed model has reflected characteristics of the multi-building construction project, so that it can reasonably estimate the safety inspection cost more than the current standard.

A Study on the Factors Affecting the Detailed Design Price of Road Construction Project (국내 도로공사 실시설계 대가영향요인에 관한 연구)

  • Lee, Mi-Young;Seo, Jung-Hoon;Oh, Se-Wook
    • The Journal of the Korea Contents Association
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    • v.18 no.9
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    • pp.44-54
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    • 2018
  • In the construction project, the design field has a crucial effect on the success or failure of the final product, and it is becoming more important as a core area of national industrial development because it creates high value added by technology. In addition, since the design work is carried out based on professional technical personnel, in order to secure the quality and competitiveness of the design, it is necessary to continuously input the excellent manpower and develop the technology, and above all, the appropriate design cost must be ensured. However, as a result of reviewing the current status of the design cost criterion in Korea, problems such as mixed cost calculation method, inaccuracy of construction cost ratio method, and inactivation of cost plus fixed fee method were analyzed. Therefore, it is difficult to calculate the fair value reflecting the characteristics of the project when calculating the construction design price. Therefore, the price criterion should be improved so that the fair value of the design can be determined according to the contents of the project, By analyzing the correlation and multiple regression analysis of the projects and price information of the completed road construction design, the factors influencing the design price and the level of influence were analyzed.

An Analysis of the 2014 Pricing Guide for Technical Service Contracts through Comparison with Foreign Countries' Cases (해외사례 비교를 통한 2014년 개정 건설기술용역 대가기준 분석)

  • Lee, Taewon;Lee, Ghang
    • Korean Journal of Construction Engineering and Management
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    • v.16 no.3
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    • pp.152-164
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    • 2015
  • Enhancing clarity and transparency of the pricing guide for technical services for public construction works enables the prediction and reimbursement of the service cost for project owners and bidders, while it would also yield benefits for engineers who carry out the construction tasks. In order to improve the global competitiveness of construction service industry, the government revised its pricing guide for techical services for construction works recently, moving away from its previous percentage-of-construction-cost method towards the Cost Plus a Fee Method. However, since the Cost Plus a Fee Method results in the rise of the service price by 153%~197%, there is the need for a review on the method and basis of the adjustment in order to avoid controversies regarding the application of the revised method. In this context, this paper analysed the 2014 revision of the pricing guide for technical services for public construction works through comparison with foreign cases including those of the US and the UK. The analysis yielded the conclusion that, while the shift towards Cost Plus a Fee Method which is widely used in advanced economies is a very meaningful change in large measure, certain aspects still remain problematic. Unlike in advanced economies, the detailed break-down shows the direct labor cost includes certain indirect expenses. Also, indirec expenses are admitted so comprehensively as to include overhead costs and technology royalties. These problems results in redundant estimation of certain expenses, and obstructs transparency in spending details. This paper proposes various improvement measures to address these issues.

The Establishment of Improvement Direction through Case Analysis of Cost Standards in Overseas Construction Engineering (해외 건설엔지니어링분야 대가기준 사례분석을 통한 개선방향 마련)

  • Ko, Hyun A;Han, Jae Goo
    • Proceedings of the Korean Institute of Building Construction Conference
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    • pp.165-166
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    • 2020
  • The standard for the cost calculation in the field of domestic construction engineering can be largely divided into the construction cost ratio method and the actual cost addition method. However, the standard for calculating the cost of the construction cost ratio method is a trend to switch to the actual cost addition method due to limitations such as not reflecting the characteristics of the construction. Therefore, this study aims to derive implications by investigating and analyzing examples of cost standards in the field of overseas construction engineering, such as the United States, and deriving directions for improvement in domestic cost standards in the future.

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Development of a Safety and Health Expense Prediction Model in the Construction Industry (건설업 산업안전보건관리비 예측 모델 개발 - 일반건설공사(갑)의 공사비 50억미만 공사를 대상으로 -)

  • Yeom, Dong Jun;Lee, Mi Young;Oh, Se Wook;Han, Seung Woo;Kim, Young Suk
    • Korean Journal of Construction Engineering and Management
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    • v.16 no.6
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    • pp.63-72
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    • 2015
  • The importance of the appropriate use and procurement of Safety and Health Expense has been increasing along with the recent increase of construction projects in height, size and complexity. However, the current standards for deducting the Safety and Health Expense have shown limitations in applying the properties and environment of the construction project due to its Safety and Health Expense Rate's classification method. Therefore, the purpose of this study is to develop a prediction model for the Safety and Health Expense that enables the consideration of different environment and properties of construction projects. The study uses multiple regression analysis to analyze the Safety and Health Expense of Ordinary(A) of less than 0.5 billion WON. The research results have shown that the use of multiple regression analysis reduces the error rate to 4.38% which the current standard calculation method have shown 18.48%. Therefore, the use of the suggested model provides reliable Safety and Health Expense prediction values that considers the properties of the project. It is expected that the results of this study contributes to the effective safety management by providing the appropriate amount of Safety and Health Expense to the project. In this study, only projects of less than 5 billion WON have been considered in the analysis. Therefore, more data is required for future studies to suggest an overall Safety and Health Expense predict ion model that covers the whole construction industry.

Improvement of CM Fee Estimation Criteria for Efficient CM Service (건설사업관리업무 효율화를 위한 대가 산출기준 개선방향)

  • Cho, Youngjun;Sung, Youngmo
    • Korean Journal of Construction Engineering and Management
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    • v.20 no.2
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    • pp.105-112
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    • 2019
  • As the Construction Technology Promotion Act was revised in 2015, the term of Supervision was removed and Construction Management was included instead. The consideration of Construction Management shall be based on the cost plus fee method specified in the Criteria for the Cost of Construction Technology Services of the Ministry of Land, Infrastructure and Transport. Nevertheless, it is based on the construction cost ratio in accordance with the Economy and Finance Ministry's Detailed Guidelines for Preparing the 2018 Budget Plan and Fund Management Plan (Manual for Business Type and Item). As a result, it has been expected that Construction Management consideration will be calculated according to a single government standard and that the Criteria will be applied reasonably. In addition, although the change in the Labor Standard Act has a significant effect on the working environment of the construction site, the nature of the construction site is not considered in this Act. Based on these problems, the study suggested that the government should apply a single standard after consultation with the relevant agencies when calculating the consideration for Construction management, that the scope of the Criteria for the Cost of Construction Technology Services should be clear, that the amount of input by the Construction Manager should be considered for the capability of engineers and the number of working days, and that construction characteristics should be considered when determining the number of working days and hours.