• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 추계 학술논문 발표대회
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• pp.73-74
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• 2014

A construction method allowing exterior insulation working to be carried out simultaneously with vertical structural work through modification of the temporary vertical system form could be a breakthrough to invigorate exterior insulation construction in high-rise apartments. Therefore, the purpose of this study, as a preliminary study for developing such a method, was to derive significant engineering characteristics (E.C) using QFD which can reflect the users' need for E.C. Based on this result, a construction method will be developed in further research.

• 한국건축시공학회지
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• 제9권6호
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• pp.121-129
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• 2009

중소규모 건축물의 시공 현장은 기초의 크기가 작고 터파기 깊이가 얕은 경우가 많다. 이런 경우 일반 거푸집을 이용하여 2회에 걸쳐 타설하는 기존의 재래식 공법보다 매립형 보조거푸집을 이용하여 기초 및 지중보와 바닥슬래브를 동시에 타설하는 공법을 사용하면 지하층 골조공기의 단축과 그에 따른 원가절감을 기대 할 수 있다. 기존의 매립형 보조거푸집은 거푸집의 종류에 따라서 자재와 인건비에 따른 원가, 품질상의 문제들이 있기 때문에 사용에 제약이 있다. 따라서 본 연구에서는 개선방안으로써 발포폴리스티렌을 매립형 보조거푸집으로 이용한 기초 및 지중보와 바닥슬래브 콘크리트 동시 타설공법을 제안하고, 기존의 공법들과 비교하며, 공법별 평가를 통하여 효용성을 검증하고자 한다.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 2006년도 하계종합학술대회
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• pp.751-752
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• 2006

In this paper, we propose a improved tree construction algorithm on End Host Multicast. By using concurrent connection information of nodes at RP, we could diminish the RDP and the amount of control messages used for tree construction at the same time.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.649-654
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• 2005

A new law, the Urban and Living Environment Improvement Act, was established, promulgated, and entered into by the Ministry of Construction and Transportation as of 1st July 2003. This system under this law, which improves currently executed consulting process and upgrade its level, is to execute the legal process and procedures that are necessarily required for housing reconstruction/renewal project.. This system requires to be supplemented with addition of reasonable, logical, and systemized tools of system. Through concurrent application of professional management of renewal business(PMRB), more benefit will be provided to housing renewal associations that are constituted with residences concerned for execution of CM project.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 추계 학술논문 발표대회
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• pp.13-14
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• 2011

The main purpose of this research is to propose standardization of construction components design with BIM and to develop WLCM Framework and Application System for supply chain management on interaction of stakeholders based on proposed standard component. To accomplish main purpose of this research, we planned three years period, in first year, we will develop model for building lifecycle based on BIM, and this model can give the chance of collaboration with stakeholders of building project. In second year, we will develop WLCM system with model, and to improve performance of application model/system. This study can contribute on reduction of whole lifecycle cost, with preventing omission of factors on cost reduction possibility, develop concurrent engineering framework for construction stakeholders with proposed BIM.

• Journal of Information Processing Systems
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• 제19권5호
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• pp.702-712
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• 2023

Load balancing plays a crucial role in ensuring the stable operation of information management systems during periods of high user access requests; therefore, load balancing approaches should be reasonably selected. Moreover, appropriate load balancing techniques could also result in an appropriate allocation of system resources, improved system service, and economic benefits. Nginx is one of the most widely used loadbalancing software packages, and its deployment is representative of load-balancing application research. This study introduces Nginx into an educational administration system, builds a server cluster, and compares and sets the optimal cluster working strategy based on the characteristics of the system, Furthermore, it increases the stability of the system when user access is highly concurrent and uses the Nginx reverse proxy service function to improve the cluster's ability to resist illegal attacks. Finally, through concurrent access verification, the system cluster construction becomes stable and reliable, which significantly improves the performance of the information system service. This research could inform the selection and application of load-balancing software in information system services.

• 한국건설관리학회논문집
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• 제24권1호
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• pp.12-20
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• 2023

국내에서 관행적으로 사용되어온 간편법에 의한 공기지연 분석시 발주자와 계약자의 지연일수 산정은 동시발생 공기지연의 영향과 돌관공사의 수행의 영향을 반영하지 못하는 한계가 있으며, 양 당사자에 대한 지체상금의 부과에 있어서도 문제를 가져왔다. 본 연구에서는 지체상금에 대한 국제 판례를 분석하고, 발주자와 계약자의 지연일수의 비율을 적용하여 지체상금을 부과하는 기존 방식의 문제점을 국제 기준과 비교하여 분석되었다. 공기지연 분석의 문제점과 이를 기반으로 한 지체상금 산정의 문제점을 개선하기 위해서는 공기지연 분석에 있어서 발주자 지연, 계약자 지연, 동시발생 공기지연을 분석하고, 돌관공사의 영향을 고려한 종합적인 공기지연에 대한 귀책 분석이 필요하며, 지체상금의 부과에 있어서 발주자의 귀책에 의한 지연일수와 동시발생 공기지연 일수를 합한 기간 만큼 준공기한을 연장하고, 그 이후에 발생된 지연에 대하여 지체상금을 부과하는, 국제기준에 부합하는 지체상금 부과 방안을 제시하였다. 본 연구의 결과는 기존 관행적으로 수용되어 오던 실무 공기지연분석 및 지체상금 산정의 문제점을 개선하는데 기여할 수 있을 것으로 기대된다.

• 한국해양공학회지
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• 제15권4호
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• pp.80-85
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• 2001

The early construction of the internet based ship basic planning supporting system based on the concurrent engineering and the internet technology is essential as a means for the improvement of technology and design productivity our ship building industry is facing currently. Further more, technological base construction for the construction for the construction of the cooperation system on the level of ship building industry is necessary for the technological base security to maintain and develop ship building industry continuosly in the 21st century of the information industry environment and for the technological improvement of the middle and small shipyard falling behind relatively and finally for the breaking through our ship building industry environment in which inter-enterprise competition is deeping. In this study, we designed the frame-system of the ship design supporting system and presented the development scenario based on core element technology.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2010년도 춘계 학술논문 발표대회 1부
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• pp.131-133
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• 2010

As linear scheduling method has been used since 1929, Empire State Building linear schedule, it is being applied in various fields such as construction and manufacturing. When addressing concurrent critical path occurring on linear schedule of construction, the empirical researches stress the resource management which should be applied for optimizing work flow, flexible work productivity and continuos resource allocation. However, work relationships has been usually overlooked for making the linear schedule from existing network schedule. Therefore, this research analyze the previous researches related to linear scheduling model and then propose the method that can be applied for adopting the relationships of network schedule to the linear schedule.

• 국제학술발표논문집
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• The 2th International Conference on Construction Engineering and Project Management
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• pp.96-105
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• 2007

This paper presents a study on the impact of variation of construction material prices on the feasibility of building projects in Vietnam. The paper makes use of Monte-Carlo simulation for financial risk analysis of net present Value (NPV) and internal rate of return (IRR). To well illustrate the influencing, a case study is presented. The research results show that there is a strong correlation between steel prices, gold prices, and $US exchange rate. Outputs of statistics also reveal that the concurrent variation of prices of cement, steel, sand, brick, formwork and stone has strongly negative impact on NPV and IRR of building projects. The results also indicate that the proportion of steel cost to total construction cost is 17.95% which is the cause of risks for the feasibility of building project in Vietnam. The paper stresses that feasibility study of building project must integrate the impact of construction materials prices in order to mitigate risks in developing countries as Vietnam.