• 한국건축시공학회지
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• 제10권1호
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• pp.193-198
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• 2010

연구의 수행결과 얻어진 결과는 다음과 같다. 먼저 문제점으로는 국내의 경우 수선주기와 교체주기에 대한 명확한 구분기준이 없으며 건축공법과 재료성능의 발달 및 건물의 경과연수에 따른 변화대응력을 감안한 수선교체주기를 적용하지 못하고 있다. 즉 25~35년 사이에 리모델링 수준의 대규모 개수가 이루어 질 경우를 고려한 경제적인 수선교체주기의 산정이 필요하다. 수선교체주기의 산정에 있어 외국의 경우, 건물의 용도나 성능수준에 따라 이를 규정하고 있으나 국내의 경우에는 그렇지 못한 현실이다. 이를 개선하기 위해서는 개별건물의 특성을 반영하고, 새로운 건축재료나 공법에 대해 수선교체주기 산정기준을 마련하여야 하며 더불어 수선교체 대상항목의 분류 방식이 건축물 초기공사항목의 기준을 적용할 수 있도록 재편성하는 것이 필요하다. 또한 수선교체 이력데이터의 관리를 통해 기존의 확정적 수선교체주기설정에서 벗어나 건축물의 상태에 기반하여 수선교체주기를 재설정할 할 수 있는 업무기준이 필요할 것으로 판단된다.

• 교육녹색환경연구
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• 제6권1호
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• pp.60-84
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• 2007

This study purpose is seeing that the independent standard sufficiently reflecting the characteristics of the school facility as the basic material needed to calculate the maintenance and repair expenses is needed to make a more realistic and valid qualitative VFM analysis of the school BTL project. this study attempted to develop the standard for the repair cycle and rate and economic year of the school facility. The quantitative VFM analysis should be conducted based on the repair cycle and repair rate proper to the school facility, not the residential space, when calculating the maintenance and repair expenses of the operating expenses of the school facility. An attempt was made to calculate the repair cycle, repair rate and economic life of 114 component materials of the school facility judged to be able to explain the school field best. And it was confirmed that the repair and maintenance expenses more is needed to be set by about 35% than the existing maintenance and repair expenses.

• 교육녹색환경연구
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• 제9권2호
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• pp.1-8
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• 2010

This study is to present an engineering solution for the repair frequency and repair rates of a building. The existing data for the repair frequency and repair rates are used to draw the probability distribution for the generalized repair frequency and repair rate in a building. The suggested methodology can be widely used for most buildings to estimate the legal repair frequency and repair rates. Also, the methodology can be applied to resolve the risks on the maintenance costs in LC (Life Cycle) plans or LCC (Life Cycle Cost) analysis. As the future studies, there are the multiple regression analysis including the parameters on incurred costs and the decision methods on efficient repair and replacement.

• KIEAE Journal
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• 제14권2호
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• pp.69-75
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• 2014

Building has been deteriorated over the year after construction. The deterioration has caused to hinder the living condition and to decrease the building value. Thus, it is important to prevent or delay the building deterioration as well as to proceed the maintenance. The long-term repair program for the apartment in Korea plays a key role to make the repair plan after construction and to assure the function decent. This is not flexible to the change of the material and component because the program is provided by the Korean-law. Many items are omitted in the long-term program so that the maintenance experts face many difficulties to make a repair plan. In this paper, it aimed at providing the repair cycle and repair ratio according to the repair scope, which are not provided in the current program. This study shows that the repair ratio is presented with quartile range in 25%, 50%, 75% and 100%. This has an advantage to take an overall look in repair items. Under this presentation of the repair ratio, each item has a unique repair value. Second, the repair scope is divided into partly repair, fully repair, partly alteration and fully alteration. If a fully repair has a repair ratio close to 100%, it would mean that a fully repair is a fully alteration. Third, the short repair cycle means that it requires to maintain the function or performance of the components in a short term.

• 토지주택연구
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• 제5권4호
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• pp.297-303
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• 2014

최근, 공동주택 단지내 투수성 포장 및 블록포장 등과 같은 포장이 많이 시공되고 있으나 품질관리와 공용성 평가에 관한 기준이 미비하여 하자 교체 및 교체주기 시기 결정 등에 어려움이 많은 실정이다. 따라서, 본 연구에서는 공동주택에 많이 적용되고 있는 투수성포장 및 블록 포장의 합리적 선정기준을 제안하기 위해 교체주기, 초기 공사비, 유지교체비용 등을 고려한 포장공법별 생애주기 비용 분석(LCCA)을 실시하였다. 생애주기비용 분석결과는 교체주기 20년이상인 인터록킹 콘크리트 블록포장이 최적의 대안이지만, 보도 포장의 교체기준 10년을 기준으로 하였을 경우 최적의 대안은 일반적인 아스팔트 콘크리트 포장임을 알 수가 있다. 따라서, 교체주기가 대안의 선정 및 생애주기비용 분석에 많은 영향을 미치므로 향후, 교체주기의 객관적인 정량화에 필수적인 공용성 지수 개발이 필요하다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 추계 학술논문 발표대회
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• pp.147-148
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• 2011

This study applied BIM(Building Information Modeling) technology for Long-life Housing within exterior, interior and building equipment. There has many changes and depression infill material after construction. Therefore to understand establishment of repair and replacement cycle is necessity. In addition, the method of classification is necessary because of construction equipment efficiency. On this study, we will find how can we manage them and establish the repair and repairment cycle by applying BIM technology.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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• pp.235-236
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• 2010

Since many structures in the sea environment are damaged by chloride, appropriate repair strategy is required. Therefore in the paper, optimum period for the RC structure's repair is calculated with consideration of economic efficiency. Moreover, when the concrete members are repaired with the other material such as polymer mortar forr section restoration, their expected service life also calculated to predict more accurate repair period during the life span.

• 한국도로학회논문집
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• 제8권2호
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• pp.49-54
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• 2006

The purpose of this study was to determine the effect of expansion joint spacing (slab size) on the life cycle costs of owning Portland Cement Concrete (PCC) airfield pavements. Previous research has shown that slab size has a statistically significant impact on pavement performance. A probabilistic life cycle cost analysis was performed to determine if the effect of slab size on pavement performance would affect the total cost of ownership of PCC pavements. Data from 48 Pavement Condition Index (PCI) inspections of military and civilian airfields were used to develop probability-of-distress-by-condition curves, which were then used to develop probabilistic cost-of-repair-by-condition curves. A present worth life cycle cost analysis was then performed for various slab sizes, using construction costs, rehabilitation costs, and maintenance costs. Maintenance costs were determined by assuming a condition deterioration rate appropriate for each slab size and applying the cost-by-condition curves. The probabilistic cost-of-repair-by-condition curves indicated that smaller slabs are more expensive to repair on a unit cost basis. Life cycle cost analysis showed that larger slabs have a higher total cost of ownership than smaller slabs due to a faster rate of deterioration.

• 한국건축시공학회지
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• 제10권2호
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• pp.41-50
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• 2010

본 연구에서는 수선교체이력 자료 및 전문가 의견을 기초데이터로 하고 몬테카를로 시뮬레이션을 활용하여 건축물 수선교체주기에 대한 신뢰성 분석을 가능하게 할 수 있는 모델을 제시하였다. 제시된 모델은 건축물의 경년별 수선교체 시기를 확률적으로 제시하고 건물의 유지관리 계획시 신뢰성분석에 근거한 수선교체시기와 비용수요를 사전에 예측하도록 지원한다. 또한 건물의 소유주체나 유지관리 의사결정권자에게 공통적으로 발생하는 계획상의 많은 리스크를 감소시켜주는 역할을 할 것이다. 더불어 기존건물의 수선교체 이력데이터의 부재로 인해 의사결정에 많은 어려움 겪고 있는 대규모 건물자산의 유지관리책임자가 수선교체소요에 대한 중장기정책 수립시 이에 대한 타당성을 확보할 수 있는 공학적 해법이 제시되었다. 정리하면 크게 다음과 같이 3가지의 연구성과로 나눌 수 있다 첫째, 건축시스템의 발달에 대응할 수 있는 수선교체주기 산정법이 개발되었다. 둘째, 수선교체주기의 리스크를 정량화 시킬 수 있는 확률론적 방법론이 제안되었다. 셋째, 제안된 모델은 건축프로젝트에서 설계자와 시공자가 건물의 생애주기설계에 관한 의사결정을 지원할 수 있는 도구로 활용 가능할 것이다.

• 산업경영시스템학회지
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• 제43권1호
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• pp.61-69
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• 2020

Systems such as database and socal network systems have been broadly used, and their unexpected failure, with great losses and sometimes a social confusion, has received attention in recent years. Therefore, it is an important issue to find optimal maintenance plans for such kind of systems from the points of system reliability and maintaining cost. However, it is difficult to maintain a system during its working cycle, since stopping works might incur users some troubles. From the above viewpoint, this paper discusses minimal repair maintenance policy with periodic replacement, while considering the random working cycles. The random working cycle and periodic replacement policies with minimal repair has been discussed in traditional literatures by usually analyzing cases for the nonstopping works. However, maintenance can be more conveniently done at discrete time and even during the working cycle in real applications. So, we propose that periodic replacement is planned at discrete times while considering the random working cycle, and moreover provide a model in which system, with a minimal repair at failures between replacements, is replaced at the minimum of discrete times KT and random cycles Y. The average cost rate model is used to determine the optimal number of periodic replacement.