• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 춘계 학술논문 발표대회 2부
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• pp.97-98
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• 2011

The number of high-rise buildings has increased year after year, with there currently being 5 projects in progress to construct buildings higher than 100 stories in Seoul alone. The construction cost for such high-rise buildings is significantly higher than the cost for a conventional low-rise building, while maintenance costs are expected to be two to three times higher. To reduce the maintenance cost of a high-rise building, there is the need for a guide rail to be used for maintenance, which is why there is the need for research on the guide rail system. For this reason, as preliminary research to develop a guide rail, this study aims to derive the factors increasing construction cost by taking the installation of a guide rail into account. This is expected to lay the groundwork for the design and construction of guide rails for high-rise building maintenance.

• 설비공학논문집
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• 제29권12호
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• pp.663-672
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• 2017

Building information modeling (BIM) technology based on 3D modeling has been applied to the entire domestic construction industry since 2010. It can calculate quantity take-off considering construction productivity at design phase. Based on this, it is possible to improve the reliability of construction cost prediction of design phase in the process of cost estimation. However, Building Information Level (BIL) defined by Ministry of Land, Infrastructure and Transport and Public Procurement Service does not seem to offer doable environment due to the lack of detailed application items. By calculating construction cost that meets Construction Cost Estimate Accuracy by American Association of Cost Engineers (AACE) through quantity take-off and cost estimation based on 3D modeling of BIM technology, a BIL improvement proposal at design phase for Mechanical Contracts and Construction is provided here. Results showed that properties including outline and minimum specification of the main equipment, internal main piping, and internal main duct should be defined from the intermediate design phase to have reliable cost estimation.

• KIEAE Journal
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• 제17권1호
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• pp.15-21
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• 2017

Purpose: This study was on the economic feasibility of BIPV system, focused on comparison with construction cost of BAPV system depend on roof finishing materials, and to suggest basic data on the construction cost. Method: Construction cost of BAPV system was calculated, by selecting asphalt single, flat type roof tile, color steel plate, titanium zinc plate as roof finishing material of residential building and by sum up each cost for roof finishing construction and cost for 3kWp-volumed PV module installation. Also, the economic feasibility was analysed quantitatively by comparing the cost for BIPV system construction, installing same volumed PV module instead of roof finishing materials. Result: 1. By installing BIPV system instead of the roof finishing material, the cost of construction falls ; about 19% in case of the titanium zinc plate, which is the most expensive, and about 11% in case of the color steel plate. 2. Reducing amount of the construction cost gets larger because of installing BIPV module instead of the roof finishing material, as the construction cost for roof finishing material gets higher ; therefore, it is more economical than BAPV system in terms of whole cost of construction.

• 한국건축시공학회지
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• 제22권4호
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• pp.371-378
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• 2022

려명거리 사업은 건설비용이 알려진 유일한 건축사업이지만 북한원으로 표기되어 그 규모를 짐작할 수 없다. 본 논문에서는 려명거리의 건설조립액을 기준으로, 북한 아파트 신축공사의 m²당 공사 원가를 산출하고, 이를 서울주택도시공사가 공개한 원가와 비교하여 남한과 북한의 건축공사비 비율을 산출했다. 그 결과는 160대 1이었고 이는 남북 공식 환율이 없는 상황에서 북한원으로 표기된 공사 규모 추정에 이용될 수 있으며, 향후 남북 공동으로 건축사업을 계획할 때, 상대의 화폐단위로 산출된 건축공사 원가를 이해하는 데 일조할 것으로 기대한다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2012년도 추계 학술논문 발표대회
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• pp.291-292
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• 2012

Progress in the construction project, the estimated cost of the measure is very important. Use preliminary estimate cost data for the prediction of construction cost. But, preliminary estimate cost data a clear calculation, there is no way. it is rely on the historical data and the past construction data. As a result, a significant difference in the actual construction cost and the predicted cost of the problem occurs. In this study, taking advantage of BIM Cost Prediction for efficient and rapid preliminary estimate BIM for building database through the study preliminary estimate cost data.

• 한국건설관리학회논문집
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• 제4권4호
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• pp.106-113
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• 2003

The purpose of this thesis is to provide an appropriate trade-off information for the conflicting interests caused by the various factors between building owner and contractor during selecting the contractor and performing the construction work, in which the construction was contracted by open bidding from the government or private organizations. In order to propose the legitimate evidence, the differences between the domestic contract sheet of drawing change and the process of drawing change and those of the foreign countries were compared and analysed The number of construction ordered in Youngdong area in 2001 whose construction expenses are more than 100,000,000 won is 218 items and 147,005,000,000 won in total cost Among them, the number of 218 items whose total cost amounts to 16,705,000,000 (11.36$\%$) is in case of increase of construction expenses due to the drawing changes, and the number of 48 items whose tool cost amounts to 2,009,000,000 won (1.37$\%$) is the case of decrease. In conclusions, the contractor could have more benefits than the building owner in case they submit the detailed estimate sheet without eliminating the increasing expenses of construction. It is shown that the building owner's loss is increasing whenever the labor cost is higher material cost Therefore, this thesis proposes a proper standards for the harmonious compromise between the contractor and the building owner for the problems caused by the drawing changes when the contract agreement is occurred.

• 한국건축시공학회지
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• 제8권6호
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• pp.65-74
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• 2008

The aim is to get comprehensive view point for the price of apartment. Apartment construction cost is the sun of land cost and building cost. Land price reflects the value of location where building stands. When the gap between price and affordability is narrow enough, effective demand promote apartment construction. The today's trends of rising price, which began in apartment housing, spreads to real estates market and finally overall consumer price. Problem is that price is decided only by supplier's interest. Equilibrium-pricing is common process in housing market. However it is important to review hedonic price and the factor of housing services and focused on the affordability of demanders. AHP analysis was used to study real needs and preference of demanders and dealt with 200 interviewees with brief checklists. We found that social factor is more important than building cost or site development. Especially location of apartment is most important to affect environment quality and accessibility to facilities.

• 한국건축시공학회지
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• 제10권1호
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• pp.81-89
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• 2010

정부는 2004년부터 원가산정체계를 실적공사비 중심으로 전환하였다. 이러한 실적공사비는 계약단가를 기준으로 산정되며, 현재 10억원 이상의 공공 건설공사에 적용되고 있다. 그러나 대형공사 위주의 평균단가로 구성되어 있는 실적공사비를 10억원 미만의 소규모 건축공사에 직접적으로 반영하게 됨으로써 소규모 건축공사의 실행금액이 계약금액 이상으로 증가되는 경우가 빈번히 발생하고 있다. 뿐만 아니라, 이에 따른 영업이익의 감소로 기업운영 및 생산성 등에 악영향을 미치는 등과 같은 여러 문제들이 야기되고 있다. 따라서 10억원 미만의 소규모 건축공사에 실적공사비를 적용하기 위해서는 사업의 규모 등을 반영할 수 있는 단가보정 방안이 있어야 한다. 이에 본 연구에서는 실적공사비를 10억원 미만의 소규모 건축공사에 적용하는데 발생할 수 있는 단가적용의 문제를 해결하기 위하여 실적단가를 보정할 수 있는 실적공사비 단가보정 모델을 개발하였다. 이 모델은 소규모 건축공사의 생산성과 적정한 이윤을 책정하는데 도움을 줄 수 있으며, 소규모 건설업체의 경영이 악화되는 것을 방지할 수 있을 것으로 판단된다. 그리고 발주처는 예산편성 시 현실성 있는 공사비를 확보할 수 있을 것으로 기대된다.

• 한국건설관리학회논문집
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• 제5권3호
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• pp.106-113
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• 2004

건설산업의 고부가가치화를 위해서는 계획적인 원가절감에 의한 방법과 기능의 향상에 의한 방법 및 효율적인 추가 원가투입에 의하여 더 높은 기능 향상을 실현함으로써 부가가치를 높이는 방법을 추구하여야 할 것이다. 특히 건축공사에서 골조공사는 전체 공정 및 원가에 영향을 크게 미치는 주요 공정으로서 철저한 공사관리 계획과 관리가 요구되는 부분으로서 생산 활동 및 공사 방식 선정의 효과를 크게 볼 수 있는 항목이라 할 수 있다. 본 연구는 현재 도심지 공사에서 날로 증가하고 있는 지하공사의 비율을 감안하여 지하골조 공사의 성능개선에 초점을 두었다. 건축물의 지하골조공사에 있어 효과적인 공기 및 원가절감을 위하여 VE 기법을 검토하여 VE 프로세스와 분석차원을 모델링하고, 이를 현장에 적용, 사례연구를 통하여 그 타당성을 입증하였다. 따라서 본 연구는 건축물 지하골조공사의 VE 활용모델로서 기술대안 선정방식 수립의 기초적인 연구가 될 것으로 기대된다.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1170-1175
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• 2009

When managers estimate exact construction cost at early stage and design phase, they can reduce construction cost in a more efficient way than to predict at construction stage. But, the current of public construction cost estimation and management is concentrated almost after detailed design phase. Therefore, construction cost management in design development phase to generally use approximate estimating is not correct. Also, the existing construction cost used the method that estimated by gross floor area-based cost estimates at design development phase. So, it is difficult to show the specific amount of materials and basis about the estimated cost of the construction. This study derived problems and limits of construction management at design development phase in case of public office building project through review of literature and current survey, and suggested estimating process model process of structural construction cost go improve these matters.