• 한국IT서비스학회지
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• 제10권1호
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• pp.89-103
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• 2011

ITS (Intelligent Transportation System) has been more popular but ITS project managements remain complex because of diverse stakeholders and multidisciplinary processes of ITS. The multidisciplinary process enforces specialized competencies on ITS project managers comparing to other system integration project managers. In this paper, we derived core competencies of ITS projects from previous researches, built the hierarchy of the competencies, and employed AHP (Analytic Hierarchy Process) surveying ITS project managers and auditors with the hierarchy. Finally, we analyzed the difference of evaluation model on ITS project manager between project managers and auditors using Mann-Whitney U test. Additionally we suggest a method of building MECE (Mutually Exclusive and Collectively Exhaustive) structure for AHP using the HoQ (House of Quality). We expect our model to give some inspirations for raising capable ITS project managers and selecting a proper project manager for an ITS project.

• 한국BIM학회 논문집
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• 제3권2호
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• pp.19-27
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• 2013

The application of the BIM for the KEPCO' new headquarters in Naju involved alternative approaches and accompanied many trials-and-errors as the project adopted new targets and purposes that were not used in Korea before. In particular, for a large BIM-based project, clearly defining the BIM-including the objective, scope and the outcome-is critical for a project owner. For a successful implementation, project owners should improve the utilization of the BIM. Against this background, this research examines the case of the BIM application for the KEPCO' new headquarters in Naju, identifies its effects and problems, and proposes how to improve application of the BIM for public projects. The improvement in the BIM application can be divided into several stages: project order, design development, construction, and post-construction maintenance. In the initial stage, it is important to fully discuss the project planning among participants, and clarify the goal, scope, expected outcomes and role of the BIM. In the design stage, the level of detail (LOD) for the 3D model should be defined in consideration of information use in the stages of estimation and construction. In the construction stage, the scope of project that is managed based on the processing and use of the BIM data should be clearly given and understood. After construction is complete, measures should be sought to use the BIM for maintenance, and corresponding requirements and outcomes should be provided. The analysis is expected to provide basic data for successful implementation of BIM-based public projects, by assisting project owners and involved parties in enhancing work in different stages of a project.

• 한국건설관리학회논문집
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• 제5권6호
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• pp.218-225
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• 2004

주택건설시장에서 정부의 후분양 방식 도입이 점차 가시화되고 있는 상황에서 더 이상 기존의 건설금융 기법으로는 건설환경의 변화에 대처할 수 없게 되어 자금의 유동성 및 사업 자금 확보에 어려움을 겪을 것으로 예상된다. 결과적으로 주택건설산업에서 분양대금 수입의 시기변화에 따라 선분양의 장점이었던 건설금융 및 사업안정성 확보가 어려워지기 때문으로, 시장충격의 완화를 위한 방안마련 및 건설 자금조달을 위한 건설금융의 활성화가 전제되어야 할 것이다. 따라서, 본 연구에서는 분양을 통해 공급되는 공동주택으로 시행사-건설업체 도급방식의 계약으로 이루어진 주택공급사업을 대상으로 하였으며, 건설 SWOT 분석을 통하여 주택분양사업의 후분양 전환시 선분양 자금을 대체할 수 있는 자금조달 기법으로서 프로젝트 파이낸싱의 기대효과 및 적절한 활용방안에 관한 연구를 수행하였다. 본 연구의 결과는 주택분양사업에서 프로젝트 파이낸싱을 활용할 경우, 자금조달 및 사업위험 감소를 위한 전략 수립 시 기초적 인 자료로서 활용이 가능할것으로 기대된다.

• 한국건축시공학회지
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• 제5권2호
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• pp.115-121
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• 2005

The building below standard scales to be built only by constructive report to authorities. Construction law 8 illustrates that supervision should be deployed in all the construction sites at the building which is found to have more than 3 floors and also to have more than loom of total squares in especially outside area of city plan zone. Such a small construction is have a important and the most basic meaning. Many problems were found to occur in all the constructive places which were out of the limit of this law. The construction sites were found to be controlled by public official's visiting without supervisors and designers of architecture. Technique of construction in architecture was found to be not different from that of 1980. The security of employees in construction on sites has a serious problem. Because of choosing ail the materials of the building without a reasonable point. All the building were found to have a law material about inside and outside aspects. The purpose of this study are to examine existing law about a small project and than to analyze the situation of constructive control through questionnaires and interviews with all the supervisors. Based on the data base of engineers who had a great experience in construction sites, The purpose of this study is also to suggest and advise the method of controlling all the items in architecture through on and off line.

• 한국건축시공학회지
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• 제19권3호
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• pp.281-287
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• 2019

건축프로젝트의 성과향상을 위해 현장관리자들이 조직에 최선을 다할 수 있도록 효과적으로 관리하는 것이 중요하다. 또한, 현장조직은 끊임없이 의사결정을 하므로 조직에서 의사결정이 적절하게 이루어지는지가 성과에 많은 영향을 미친다. 따라서 본 연구에서는 현장조직의 성과향상을 위해 현장관리자의 의사결정 참여와 조직몰입의 관계를 파악하는 것이 목적이다. 연구 결과 현장관리자들은 의사결정을 할 때 사람 중심보다는 업무 중심으로 하는 성향이 높은 것을 알 수 있었다. 또한, 의사결정 유형에 따라 정서적 몰입에 차이가 있으며, 의사결정 참여도와 조직몰입 간에 약한 상관관계가 있는 것을 알 수 있었다. 본 연구는 현장조직의 직무수행관리 능력을 높이는 데 도움을 줄 수 있을 것이다.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.136-144
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• 2022

Construction sites are characterized by dangerous situations and environments that cause fatal accidents. Potential risk detection needs to be improved by continuously monitoring site conditions. However, the current labor-intensive inspection practice has many limitations in monitoring dangerous conditions at construction sites. Computer vision technology that can quickly analyze and collect site conditions from images has been in the spotlight as a solution. Nonetheless, inspection results obtained via computer vision are still stored and managed in centralized systems vulnerable to tampering with information by the central node. Blockchain has been used as a reliable and efficient decentralized information management system. Despite its potential, only limited research has been conducted integrating computer vision and blockchain. Therefore, to solve the current safety management problems, the authors propose a framework for construction site inspection that integrates object detection and blockchain network, enabling efficient and reliable remote inspection. Object detection is applied to enable the automatic analysis of site safety conditions. As a result, the workload of safety managers can be reduced with inspection results stored and distributed reliably through the blockchain network. In addition, errors or forgery in the inspection process can be automatically prevented and verified through a smart contract. As site safety conditions are reliably shared with project participants, project participants can remotely inspect site conditions and make safety-related decisions in trust.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.792-799
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• 2022

Building Information Modeling (BIM) technology is a key component of modern construction engineering and project management workflows. As-is BIM models that represent the spatial reality of a project site can offer crucial information to stakeholders for construction progress monitoring, error checking, and building maintenance purposes. Geometric methods for automatically converting raw scan data into BIM models (Scan-to-BIM) often fail to make use of higher-level semantic information in the data. Whereas, semantic segmentation methods only output labels at the point level without creating object level models that is necessary for BIM. To address these issues, this research proposes a hybrid semantic-geometric approach for clutter-resistant floorplan generation from laser-scanned building point clouds. The input point clouds are first pre-processed by normalizing the coordinate system and removing outliers. Then, a semantic segmentation network based on PointNet++ is used to label each point as ceiling, floor, wall, door, stair, and clutter. The clutter points are removed whereas the wall, door, and stair points are used for 2D floorplan generation. A region-growing segmentation algorithm paired with geometric reasoning rules is applied to group the points together into individual building elements. Finally, a 2-fold Random Sample Consensus (RANSAC) algorithm is applied to parameterize the building elements into 2D lines which are used to create the output floorplan. The proposed method is evaluated using the metrics of precision, recall, Intersection-over-Union (IOU), Betti error, and warping error.

• KIEAE Journal
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• 제8권3호
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• pp.3-11
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• 2008

As arising concerns on environment, the social and institutional efforts have been made to establish green building in Korea. Even though the progress until now could not be underestimated, the education and information system of green architecture needs to be reconsidered. The system and the program of USGBC to cultivate green design and construction in the USA could be a good case to be explored. The results of exploration of USGBC programs are followed. First, USGBC is industry-led and consensus driven coalition and has diverse membership including building owners, architects, engineers, general contractors, government agencies and nonprofits. Second, various education programs are developed and provided not only for building industry practitioners but also for general people. Third, LEED Accredited Professionals who have detailed knowledge of LEED project certification requirements and processes are produced to make rating system go on smoothly and spread out. Forth, there are international conference and expo called "Greenbuild" and chapter events to interchange of information on green building industry. Lastly, there are incentives which are earning continuing education credits for other organizations such as AIA for attending a LEED workshop and earning a project one point towards LEED Certification. In view of above results, USGBC and its education program can be a good reference for developing ours on green building in Korea.

• 한국공간구조학회논문집
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• 제6권3호
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• pp.51-57
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• 2006

본 연구의 목적은 한국건축프로젝트의 경영적 특성을 파악하는데 있다. 본문은 건축프로젝트의 주요 세 요소인 디자인, 건설, 유지관리의 프로세스 질 관리에 영향을 미치는 요소들을 조사한다. 설문조사는 건축관련 대학원생 및 교수, 설계자, 시공자들의 건축프로젝트에 있어서 프로세스 질 관리에 대한 상이한 시각을 보여주고 있다. 이러한 요소들을 분석함으로써 현재 국내의 질 관리 시스템과 프로그램 내용을 교정하고 개선하는데 도움이 될 것이다. 프로세스 질 관리에 있어서 여러 요소 중 설계자와의 협조가 가장 주요 요소로써 부각되었다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2007년도 추계 학술논문 발표대회
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• pp.115-118
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• 2007

A tall building construction is needed to reduce the construction duration for project profitability. Reducing the cycle time of typical floor in the structural frame work which have the largest duration in the whole construction, greatly affects construction duration. Nowadays, some projects are accomplished in the 3 day cycle. In order to accomplish efficiently 3 day cycle, productivity information of similar projects is supported. Therefore, this study proposed labor productivity and application by slab formwork to construct by the 3 day cycle. In order to perform an analysis, we selected 3 cases and analyzed the labor productivity on the basis of the amount of slab forms, labors, and durations. Then, we performed the questionnaire to analyze the application by formwork of tall building construction engineers. This study will contribute to establish a reasonable scheduling in structural frame work of a new similar project.