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

• 한국건설관리학회:학술대회논문집
• /
• 한국건설관리학회 2007년도 정기학술발표대회 논문집
• /
• pp.957-960
• /
• 2007

최근 시행되는 건설공사에서는 설계 및 시공과정에 소요되는 공사정보들을 점차 가상현실기반의 3D모델로 활용하는 사례들이 증대되고 있다. 본 논문에서는 개념 설계 단계에서 활용 가능한 가상현실기반의 레이어 객체 시뮬레이션 기능 방법론을 구성한 후, 완성된 시스템으로 구축하여 활용성을 검증하고 있다. 레이어 객체 시뮬레이션 시스템은 사용자가 지정한 임의 공사 순서대로 구조물을 가상공간에서 사전 시공하여 실제 시공시의 문제점을 사전에 검토가 가능하도록 한다. 이러한 방법론은 3D객체 기반의 가상건설 시스템 구축시 주요 기능으로 적용되어 효율적 공사관리가 가능하게 할 수 있다.

• Journal of Construction Engineering and Project Management
• /
• 제6권4호
• /
• pp.7-14
• /
• 2016

While the idea of the existence of a set of key factors for success in planning, designing and construction of projects is not new, it remains one of the most important issues in the field of construction management. This is due to project success factors are inputs to project management practice which can lead directly or indirectly to project success. This study identifies the success factors which can be used for improving the highway projects performance in Egypt during the project pre-construction and construction phases. Through a detailed literature review 35 success factors are identified. Furthermore, the AHP is adopted to prioritize the studied factors through the application of questionnaire survey. The study establishes that implementing an effective quality control and assurance systems, allow sufficient time for feasibility studies, design, drawing and tender preparation, effective cost control system and frequency of project budget updates, preparing adequate designs and drawings and determining sufficient time to implement the desired scope of work are the most important success factors for enhancing the highway projects performance in Egypt.

• 국제학술발표논문집
• /
• The 1th International Conference on Construction Engineering and Project Management
• /
• pp.1208-1211
• /
• 2005

The design phase has a great influence on the success of subsequent phases in the project which can be connected with the success of the overall project. Several studies have focused on the effective design management. However, it is too complicated and difficult to manage the design process for the reason that it has a lot of participants and design information and consists of thousands of decisions by an architect alone. Accordingly, it is the main issue for the success of the project how well the design phase be organized and managed. In recent, even in domestic, the importance of design phase has begun to be referred in the conferences. Lean Construction also has a close look at those issues and makes ready to apply specific management methods, called to Lean Design & Construction. Managers can consider a variety of uncertainties to be under control through making the overall process effectively from the early stage. By establishing the efficient process from the design phase before the construction phase, managers can result in a desirable productivity. The aim of this study is to bring the concept (Lean Design & Construction) in domestic design circumstances and verifies the possibility how to apply the concept to the design phase.

• 국제학술발표논문집
• /
• The 9th International Conference on Construction Engineering and Project Management
• /
• pp.975-983
• /
• 2022

This paper presents an innovative way of integrating scheduling and project controls with the environmental impact of a construction project to track, monitor, and manage environmental emissions at the activity level. As a starting point, scheduling and project controls help monitor the status of a project to provide an assessment of the duration and sequence of activities. Additionally, project schedules can also reflect resource allocation and costs associated with various phases of a construction project. Owners, contractors and construction managers closely monitor tasks or activities on the critical path(s) and/or longest path(s) calculated through network based scheduling techniques. However, existing industry practices do not take into account environmental impact associated with each activity during the life cycle of a project. Although the environmental impact of a project may be tracked in various ways, that tracking is not tied to the project schedule and, as such, generally is not updated when schedules are revised. In this research, a Cradle to Gate approach is used to estimate environmental emissions associated with each activity of a sample project schedule. The research group has also investigated the potential determination of scenarios of lowest environmental emissions, just as project managers currently determine scenarios with lowest cost or time. This methodology can be scaled up for future work to develop a library of unit emissions associated with commonly used construction materials and equipment. This will be helpful for project owners, contractors, and construction managers to monitor, manage, and reduce the carbon footprint associated with various projects.

• 건축역사연구
• /
• 제15권1호
• /
• pp.7-27
• /
• 2006

This study aims to identify and analyze the factors that influenced the construction of London Eye which was led by private groups, including characteristics in progress, differentiated value in design, the combination of technology and design, and construction costs. The results of this study were the followings. 1) London Eye provides a new construction method for a landmark in the downtown in that the architects became the clients of the project which might have been hoarded, procuring the construction costs and completing it by themselves. 2) London Eye presents a space utilization method where undeveloped spaces in the downtown are used in three-dimensions by erecting a structure on the river with a minimum land. 3) The process of design, production and erection is propelled the realization of technical intention design with one system and from at the initial stage, the participation of the engineer where the designer is equal with you must accompany. 4) London Eye is endowed with strong shape by a circle in design concept, which is the simplest geometrical figure, and it provides organic relationship between the past and the present by utilizing historical elements in various ways. 5) The construction was completed through four phases including idea phase, promotion phase, turn-key contract phase, and design-build phase. The most critical factor to the success is derived from the direct contact with Involved companies from the production phase. 6) In a project facing many challenges in terms of technology, the design-build method proves to be a more effective method than turn-key contract in that it may more allocate risks and enable coherent implementation of the core concept in design. The organization for the design-build method was composed of three phases including general affairs, responsible contracting by sector, and cooperative system by sector. Since that was a new concept structure, high-level contractors who hadn't had existing cooperative relationships with one another formed new cooperative relationship, while collaborating companies who had long cooperated led the responsible contracting and sub-cooperative system, which resulted in reduction of risks and time. 7) The major factors to change design were the design characteristics, derived from a technically great combination, and the opening time. 8) A new erection method was applied to London Eye, a structure that overcame the limitation in land and period, and the process of installation demonstrated that it is an important value for the construction of a landmark in the city. 9) In spite of many visitors and tremendous operational income, the factors that London Eye fails to free itself from debts include the construction costs expended double than expected, and interest burden to the investments, which occurred in the course of procuring the costs. Absolute limit in time increased the construction costs, resulting in being a great obstacle in the course of operation.

• 한국건설관리학회논문집
• /
• 제11권6호
• /
• pp.100-110
• /
• 2010

CM의 특성상 기존고객에 의한 재구매나 기존고객의 추천에 의한 신규고객 유입이 CM서비스의 주요 수주경로라고 볼 때 고객만족과 고객충성도에 대한 연구는 CM기업의 경쟁력을 강화시키는 요인으로 볼 수 있다. 그럼에도 현재 CM이 도입된 지 15년이 지났지만, 그동안 CM분야에서 고객만족도와 고객충성도에 관한 연구는 미미하였다. 본 연구의 목적은 CM서비스에 대한 고객만족도를 기반으로 하여 충성고객을 예측할 수 있는 모델을 구축하는 것이다. 이를 위해 CM서비스를 경험한 135명의 의사결정자를 대상으로 CM서비스에 대한 고객만족도와 고객충성도를 측정하였다. 고객만족도는 건설단계별로 기획단계, 설계단계, 조달단계, 시공단계 및 준공후단계별로 세분화하여 측정하였다. 고객충성도는 NPS(Net Promoter Score, 순고객추천지수) 이론에 근거하여 고객의 추천의향을 측정하였으며 측정결과에 따라 비추천고객, 중립고객, 추천고객으로 분류하여 건설단계별 만족도와 다항 로지스틱 회귀분석을 실시하였다. 연구결과 고객만족도 수준에 따라 비추천고객, 중립고객, 추천고객을 예측할 수 있는 모델을 구축하였다. 또한 프로젝트 초기단계인 기획단계 만족도가 추천고객을 형성하는 데 가장 큰 영향력 있는 요인으로 나타났다. 이와 같은 연구결과는 인터넷 등 정보의 발달로 고객의 긍정적 또는 부정적인 구전이 급속도로 노출되는 환경에서 프로젝트 진행과정에서 고객의 만족도를 관리함으로써 충성고객을 확보하는데 사전 예측자료로 활용될 수 있다.

• 한국건설관리학회논문집
• /
• 제17권6호
• /
• pp.40-52
• /
• 2016

과거 1960~70년대에 급격한 경제발전으로 인하여 국내에는 수많은 건물이 건설되었으며, 특히 2000년 이후에는 대형화, 첨단화된 수많은 건물들이 건설이 되고 있다. 이러한 건물의 전 생애주기 비용 (Life Cycle Cost) 중, 운영 및 유지관리 단계 비용은 전체의 약 85%를 차지 (Teicholz 2004)하고 있어 건축물에 대한 효율적인 자산관리가 강조된다. 하지만 운영 및 유지관리 단계에서 필요한 정보들은 초기 기획 단계부터 설계, 시공 단계를 넘어오면서 각각의 정보들의 호환이 부족하다. 단계를 거듭할수록 정보에 대한 가치는 증가하지만 정보의 상호 호환의 부족으로 인하여 비효율적인 부분이 발생하고 있다 (Foster 2011). 본 연구에서는 먼저 발주자 관점에서 자산관리의 주요 업무기능을 3개의 대분류와 19개의 중분류로 도출하였다. 다음으로는 도출한 항목들을 바탕으로 자산관리 업무량의 비중, 자산관리 업무별 소요 데이터의 비중, 그리고 생애주기 단계별로 발생하는 데이터의 비중에 대한 평가방법론을 제안함으로써, 효율적인 운영 및 유지관리를 위한 방안을 제안하였다. 마지막으로, 제안된 방법론은 공공 및 민간 기업의 사례를 바탕으로 적용성을 검토하였다.

• 한국건축시공학회지
• /
• 제11권1호
• /
• pp.9-17
• /
• 2011

건설프로젝트에서 공기지연은 공정 및 공사비 관리 측면에서 핵심 관리사항에 해당된다. 본 연구는 아파트 건설공사에서 직접비의 상당부분을 차지하는 골조공사를 대상으로 공사부위별 공기지연 수준을 분석하고 대책을 제시한 실증연구로 10개 현장의 공사비 비중분석 결과에 기반하여 골조공사에서 지연이 발생하는 부위의 순위, 원인 등을 분석하였다. 분석결과 1층 골조공사에서 가장 큰 지연이 발생하는 것으로 나타났으며 지연원인을 다양한 분류에 의거하여 분석하고 대책을 제시하였다.

• 한국BIM학회 논문집
• /
• 제6권2호
• /
• pp.1-11
• /
• 2016

In South Korea, there have been attempts to enhance BIM work practices in various aspects. Public Procurement Service(PPS) has recently published 'basic guidelines to improve BIM work practices in construction and facility management'. It defines roles and responsibilities of project members in their application of BIM. It also developed a set of modelling standards and guidelines for effective model creation, management and communication among BIM users. Moreover, numerous construction companies have tried to cultivate BIM specialized manpower throughout entire construction phases. However, there are still challenges faced by firms during BIM adoption. Therefore, this study aims to provide practical counsel for construction companies to help them create optimized facilities and deliver high performance by analyzing BIM-based domestic construction projects in Korea from 2009 and 2015. The study will investigate types of client, project, BIM application range, and application technology.