• Journal of the Korea Institute of Building Construction
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• v.18 no.6
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• pp.621-631
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• 2018

The repair and maintenance cost of domestic public rental housing is an issue of considerable interest and growing financial concern. This paper suggests a quantity-based model as an alternative method for predicting costs, instead of the conventional model which is based on actual cost data. Furthermore, this paper provides a forecast of the repair costs incurred each year during the multi family house's maintenance phase (40 years). The recently changed the long-term repair plan and quality-improved interior materials were considered into the research. In order to estimate the cost of maintenance work, 5 sample apartments were selected and analyzed. The repair and maintenance cost from the case studies was converted to cost per household and per floor area for general use. On the other hand, the net present value method was applied to reflect the effect of time. We expect that the results will help to establish expenditure plans that are more effective for public rental housing in the maintenance stage.

• Journal of the Korea Institute of Building Construction
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• v.17 no.5
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• pp.473-481
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• 2017

With the barracks modernization project, the Ministry of National Defense has been operating 60 projects of the 75 that have been announced. It was difficult to investigate and analyze the data in the past because data could not be obtained while it was much easier to do that since data can be obtained from private companies. With the aim of increasing the usability of the facilities, the objective of this study is to present a reasonable alternative for repair and maintenance costs by investigating and analyzing the budget and the actual expenses of repair and maintenance of military facilities for the past 3 to 5 years, and then identifying the problems with these. To accomplish this, a theoretical review of previous studies and legal grounds related to repair and maintenance costs was performed, and data on the estimates and the actual expenses data used in BTL projects carried out by private companies were analyzed. First, one of the problems was that there are some items omitted, including consumables, and these items should be included in order to secure their budget. Second, in terms of the items for divided payments, two improvements had been presented: a short-term payment plan for the operation period of 3 to 5 years and a long-term payment plan for an additional and complemented period other than the operation period. The repair and maintenance costs should be further studied at the point of time in a future when the actual data on the costs and operation period of military facilities can be secured. This study is expected to serve as empirical data that will form the basis for a reasonable calculation of the construction cost for military facilities.

• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.953-957
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• 2006

농업용수관리자동화사업의 시행은 수자원관리 중에서 용수절약 및 유지관리비 절감을 위해 도입된 용수관리 개선방안 중의 하나이다. 현재 대부분의 수리시설이 수원공 관리인과 수로감시원의 인력에 의해 관리되고 있으며 2004년 수리시설물의 관리비 집행내역을 살펴보면 시설유지비 54.2 %, 개보수비 34.2 %, 적립금 및 기타 비용이 11.6 %를 차지하고 있다. 이 중의 시설유지비는 인거비의 상승으로 1999년 41.4 %에서 2004년 54.2%로 증가되었으나 개보수비는 같은 기간에 41.5 %에서 34.2 %로 감소된 것으로 나타났다(농업생산기반정비사업 통계연보, 2005). 따라서 농업용수관리자동화는 시설관리비와 개보수비의 절감 그리고 적정한 용수관리에 의한 용수절감을 위해서 더욱 확대 보급할 필요가 있다. 본 연구에서는 농업용수관리자동화 사업이 추진되어 운영되고 있는 충주지구를 선정하여 총사업비, 인건비, 유지관리비(통신료, 전력사용료 등), 수선유지비, 기타비용 등의 비용과 인력절감효과, 용수절감효과, 재해경감효과, 공익적효과 등의 편익을 분석하였다. 농업용수관리자동화시설에 대한 비용-편익 분석을 한 결과, 경제적인 효과가 있는 것으로 나타났으며 지속적인 사업의 시행을 위해서는 시설에 대한 교육, 전문인력의 보충, 운영 및 유지관리비의 투자가 병행되어야 한다고 판단된다.

• 월간 기계설비
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• s.13
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• pp.139-146
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• 1991

설비는 초기에 드는 코스트보다는 운전비, 유지비, 수선비, 갱신비, 일반관리비 등 사용하고부터의 코스트가 상당히 많고 또한 건축물에 비해 그 수명이 짧아서 건축물의 수명중 $2\sim3$번식은 갱신할 필요가 있는 것이 특징이다. 건축물의 LCC(Life Cycle Costing)등에서 설비(특히 공조설비)가 차지하는 비중은 가장크다. 따라서 건축물의 LCC로 건축물의 코스트를 검토하는 경우는 설비를 최우선 (특히 운전비, 유지비, 내구성을 중심)으로 생각해야 한다.

• Land and Housing Review
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• v.7 no.1
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• pp.43-51
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• 2016

The long-term repair program is significant as the execution standard for apartment in repair construction, and provides the basis for effective facility management through appropriation reserve and preventive maintenance. Considering its importance, the government legislates the items, cycle, and ratio for long-term repair. However, the frequent changes, controversies on repair, and difficulties in using appropriation reserve are caused as the items have not been revised on time reflecting up-to-date construction technologies. In order to resolve these problems, it is required to improve the standard by evaluating the appropriateness of repair items throughout the analysis of actual conditions. This study aims to suggest the revision plan for the criteria with the major items based on the status identified by the actual long-term repair programs and historical repair construction data. To do this, the adoption ratios of items to program are reviewed by collecting the real cases of the long-term repair programs. Developing improvement plan was approached in two ways such as "exclusion method" deleting minimum unnecessary items and "selection method" sorting out items with high adoption ratio and evidence of repair in a positive manner. Aa a result, the major items were identified as 118 items and 73 items by exclusion method and selection method respectively from the current 147 items. The outcomes of this study are expected to contribute enhancing the practicality of the standard in that the regulation for long-term repair program should periodically reflect the status of currently applied construction methods and materials.

• The Journal of the Korea institute of electronic communication sciences
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• v.7 no.3
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• pp.607-615
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• 2012

The aim of the study is to estimate the management costs of apartments by the types of heating systems(individual, central, district heating system). Multiple regression analysis was adapted and the used data are derived from 128 apartment complexes in Daegeon-si. The results are as follows; first, the management cost is decreased as a size of apartment is larger, second, the costs of general maintenance, security and repairing of buildings are lower in individual heating system. however, there is no significant differences in cleaning costs by the types of heating systems.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.33 no.3
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• pp.1203-1213
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• 2013

Governmental accounting system has changed from budgetary accounting on the basis of cash and bookkeeping by single entry to financial accounting on the basis of accrual and bookkeeping by double entry. In the context of this transition, infrastructure becomes considered an asset in accounting, and resulting accounting methods also take different approaches from conventional budgetary accounting. Financial accounting system defines expenditures into two categories, i.e. capital expenditure(CAPEX) and operational expenditure(OPEX), and stipulates that the expenditure shall be divided into those two categories before accounting. The construction and expansion of infrastructure must be considered a CAPEX because it means a sort of asset acquisition, but with regard to applications in practical accounting, it is actually challenging to judge whether any expenditure associated with maintenance works (including repair and service) during use of infrastructure acquired shall be considered CAPEX or OPEX. This paper suggested an asset management based accounting method for sewer maintenance expenditure. And it applied the method to actual accounting cases and analyzed them in comparison with conventional financial information. As a case study result, Sewer asset value of S city increased approximately 700 hundred won because sewer maintenance expenditure are classified between OPEX and CAPEX according to the proposed accounting method. It is expected that the proposed accounting method will contribute significantly to providing any proper sewer asset value information.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.2
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• pp.28-36
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• 2018

Islands are supplied with power from diesel generation or from photovoltaic power generation, and problems with offshore environmental impacts (age deterioration, salt pollution), environmental pollution (exhaust gas, noise, dust) and power generation costs (installation, maintenance) have increasingly emerged. In 2016, the cost recovery rate was only 27%, and deficits reached 73% on 65 islands managed by KEPCO. In terms of deficits, the costs incurred in the power generation sector accounted for 91%, with the ratio of fixed costs at about 60%. Analysis suggests that operating costs can be reduced with an optimal power supply system that improves power generation efficiency and makes operating systems more efficient. Therefore, it is possible to simplify fuel transportation and facility maintenance, because one island integrates the power plants of remote islands, and offshore cable is used to supply power to the other islands. From the economic evaluations in this paper, an algorithm deciding offshore cable layout validity for an integrated power supply between adjacent islands is presented. Simulation results based on the proposed algorithm confirmed that an integrated power supply is economical for existing stand-alone operations on islands having diesel generation, low peak power, and near distances.