• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.419-425
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• 2013

Recently AEC industry has required construction automation according to becoming large and complex. Thus BIM-based construction project is increased and used in whole fields of AEC industry. Quantity take-off and estimation fields are important factor for decision-making in conceptual and schematic design stages of construction projects. The purpose of this study improves reliability of the estimation through QTO based on Open BIM. Scope and method to apply QTO is to select conceptual design stage through LoD(Level of Detail) in AEC field and to extract information from BIM model through analysis of IFC structure. This study proceeds three step to make BIM model and check the model quality and calculate QTO. The methodology of QTO using IFC is to verify of result in this study and expects utilizing in design stage of construction projects. The result from this study is expected to decrease the risk factor and time of estimation in the project early phase through improving reliability of schematic estimation.

• 한국BIM학회 논문집
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• 제6권2호
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• pp.1-11
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• 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.

• 한국건설관리학회논문집
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• 제14권1호
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• pp.12-22
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• 2013

건설 산업 생애주기 전반에 걸친 정보를 BIM을 활용하여 관리할 수 있게 되었다. 그 중에서도 BIM기반 물량산출은 공사비와 직결되는 중요한 관리 요소로서 사업 타당성 및 경제성 분석을 위한 필수적인 관리 요소 중에 하나이다. 또한, BIM기반 물량산출 Data는 작업자마다 물량산출 결과가 상이하게 나타날 수 있으므로 BIM모델 구축에 대한 정확한 기준이 필요하다. 이러한 BIM기반 물량 산출은 정보의 신뢰성과 정확도 측면에서 매우 중요하다. 따라서 본 연구에서는 BIM기반 물량산출 결과의 정확도 및 신뢰성을 판단하고, BIM 모델링의 현실적이고 바람직한 방법을 제시하고자 단위세대 내부 마감재를 개별부재와 복합부재로 모델링하여 산출되는 BIM기반 물량산출 결과를 정량적으로 비교 검증하였다. 연구의 결과, 정확한 BIM기반 물량산출을 위해서는 다양한 마감재를 개별부재로 모델링하는 것이 바람직하지만, 작업의 생산성 측면에서 보다 현실적인 BIM기반 물량산출을 위해서는 개별부재와 복합부재를 병용하여 모델링 작업을 실시하는 것이 현실적인 BIM 모델링 방법임이 검증되었다.

• 한국건설관리학회논문집
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• 제12권4호
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• pp.117-129
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• 2011

건설프로젝트의 대형화, 복잡화, 다양화로 인해 전략적 대응방안 중 하나로 BIM(Building Information Modeling)이 등장하였다. 최근 조달청에서는 2012년부터 500억 이상의 건설 프로젝트에 BIM적용을 의무화하는 BIM 활성화 계획을 발표하여 국내 건설 산업 전반으로 BIM도입이 확산되고 있다. 이에 BIM기반 프로젝트 사례를 바탕으로 각종 BIM연구가 진행되고 있다. 그러나 현재 BIM관련 연구는 BIM도입에 대한 단편적인 문제점 도출 및 BIM에 대한 기술력과 체제 구축 등의 문제점을 중점으로 활발히 진행되고 있으나, 본질적인 BIM기반 프로젝트 전반에 대한 만족도에 관한 연구는 전무하다. 따라서 본 연구는 국내 BIM기반 프로젝트에 대한 실태 파악 및 만족도를 조사하여 이를 종합적으로 분석하고 현재 실무자들의 시각에서의 프로젝트 내 BIM적용에 대한 중요 부문 및 취약 부문을 파악한 뒤 중점 개선하는 방향을 제시하는 등 효율성 면에서의 BIM기반 프로젝트에 대한 만족도 연구를 하였다.

• 한국컴퓨터정보학회논문지
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• 제24권2호
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• pp.127-137
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• 2019

In this study, we have developed a calculation system for BIM-based quantities, 4D process, and 5D construction costs, by integrating object shape attributes and the standard classification system which consist of Cost Breakdown System(CBS), Object Breakdown System(OBS) and Work Breakdown System(WBS) in order to use for the 4 dimensional process control of roads and rivers. First, a new BIM library database connected with the BIM library shape objects was built according to the CBS/OBS/WBS standard classification system of the civil engineering field, and a integrated database system of BIM-based quantities, process(4D), and construction costs(5D) for roads and rivers was constructed. Nextly, the process classification system and the cost classification system were automatically disassembled to the BIM objects consisting of the Revit-family style elements. Finally, we added functions for automatically generating four dimensional activities and generating a automatic cost statement according to the combination of WBS and CBS classification system The ultimate goal of this study was to extend the integrated quantities, process(4D), and construction costs(5D) system for new roads and rivers, enabling the integrated use of process(4D) and construction costs(5D) in the design and construction stage, based on the tasks described above.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.14-20
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• 2013

Substantial research has been performed on the data standards and exchanges in the AEC/FM industry over the past several years. The growing popularity of BIM technology is based heavily upon a perception that the technology can facilitate the sharing and reuse of information during a project life-cycle. Although many researchers and practitioners are in agreement about the potential applicability and benefit of BIM in construction, it is still unclear why BIM is adopted, and what factors enhance implementation of BIM. Thus, BIM acceptance and use remains a central concern of BIM research and practice. Therefore, we propose the key factors affecting the acceptance of BIM in construction organizations using factor analysis. The key factors for BIM acceptance are identified through a literature review in TAM (Davis 1989) and related theories, and consolidated by interviews and pilot studies with professionals in construction industry. Based on the factors, a questionnaire was designed and sent out to construction organizations such as contractors, architects, and engineers in Korea. Total 148 completed questionnaires were retrieved. Using factor analysis, key factors were grouped into six dimensions. These findings will clarify what the highly prioritized factors are, and can also be used in an assessment tool for the performance of BIM utilization.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.7-13
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• 2013

Recently, defect management have been considered as one of the major issues for more large-sized and complicated in domestic construction industry. However, the defect management have not been performed systematically because of special manpower, excessive amount of documents, 2D based inspection work, unclear traditional checklists, complicated work process and difficulty in communicating construction information. Therefore, the construction field manager could not performed the quality inspection and defect management work on time as well as the reliability of recorded quality and defect factors was decreased. The primary objective of this study is develop a Construction Defect Management Application CDMA) using a mobile (smartphone). The application can be sharing a huge information and communication technology based on RFID (Radio-Frequency Identification), BIM (Building Information Modeling) which enables field mangers to efficiently gather the information of defection in construction on-site.

• 한국건설관리학회논문집
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• 제21권1호
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• pp.61-69
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• 2020

건설 프로젝트d의 대형화, 복잡화, 다양화로 인해 건설공사에서 발생되는 정보의 양이 기하급수적으로 증가하고 있다. 이에 설계 및 시공 검토가 현장 성공 여부에 치명적인 영향을 미치고 있다는 사실을 인지하고, 이를 위한 다양한 노력들이 학계와 산업에서 활발하게 이뤄져 왔다. 설계, 계획 및 유지관리 등 건설 전 단계에서 BIM의 활용은 늘어나고 있는 추세이고, 현재 건설 산업에서 사용되는 표준 중의 하나로 받아들여지고 있다. 하지만 가시설물을 위한 전문화된 소프트웨어가 없을 뿐만 아니라 전문적인 기술자가 절대적으로 부족하여 BIM기반 가설공사 설계는 2D 설계를 완료한 후 3D로 형상화하여 보조수단으로 활용된다. 이에 본 연구에서는 BIM기반 가시설물 설계 및 물량산출, 현장점검 업무의 인간적인 실수(Human error)를 최소화하고 업무시간을 단축할 수 있도록 하여 업무 효율을 높일 수 있는 BIM기반 업무지원시스템을 개발하고자 한다.

• 한국건설관리학회논문집
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• 제12권5호
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• pp.46-54
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• 2011

건설 프로젝트의 효과적인 물류 및 진도관리를 위하여 다양한 연구 및 시도가 이루어지고 있다. 이중 RFID+4D 기술은 철골, PC, 커튼월과 같은 공장 주문형 자재의 공급망 및 진도관리를 위해 개발된 기술로써 공기 및 비용 절감에 대한 효과가 있는 시스템으로 보고된 바 있다. 하지만 기존의 시스템은 그 효과에 비해 모델링 비용, 실시간 정보 반영의 난이, 시스템 운영을 위한 추가 인력 배치 등의 문제로 인해 시스템 확산이 미비한 상태에 있다. 따라서 본 연구에서는 이러한 기존 RFID+4D 프로세스의 문제를 해결하기 위한 체계 및 제안된 체계를 활용한 웹 기반의 실시간 4D 시뮬레이터를 개발하였다. 본 연구에서 개발된 체계 및 시스템은 기존 RFID+4D 프로세스 운영의 비용 및 정보 활용성을 향상시킴으로써 기술 확산에 기여할 것으로 기대되며 특히 최근 이슈화되고 있는 BIM 정보와의 연계를 통해 설계 단계에서 생성된 BIM을 시공 단계에서 활용하기 위한 방법으로 활용 가능할 것으로 판단된다.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.426-432
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• 2013

The construction industry consists of various and massive architectural information as an architectural process includes a variety of design stages with cooperation of many disciplines. Particularly, architectural information is generated and managed through the life cycle of a building, from conceptual design stage to the construction and maintenance. A Building Information Model (BIM) serves as a shared knowledge resource for information about a facility forming a reliable basis for decisions during its life-cycle from inception onward. BIM technology accomplished quantitative development being utilized in various disciplines. However, it is necessary to develop environment and requirement for qualitative improvement of BIM based project. Particularly, requirement is very important for architectural design evaluations. The purpose of this study is to develop and apply of quality control requirement for improving the quality of architectural design in open BIM environments. To achieve this purpose, the authors have investigated case study for open BIM data quality control (software, guideline and application case) and classified quality control targets according to physical/logical quality and data quality. In addition, the authors have defined open BIM based quality control process and developed quality control requirements. Finally, the authors have developed rule based quality check system using requirements for efficient quality control based on open BIM.