디지털 트윈(Digital Twin) 기반의 대형 시설물 운영 관리에 대한 기초 연구

함남혁 한국BIM학회 2019 한국BIM학회 학술대회 논문집 Vol.2019 No.-

BIM based Construction Project Case Analysis for Facility Life Cycle Management from the Perspective of the Client

함남혁,김웅기,김재준,Ham, Nam-Hyuk,Kim, Woong-Gi,Kim, Jae-Jun Korean Institute of Building Information Modeling 2020 KIBIM Magazine Vol.10 No.3

From the perspective of the client, the value of information for use in facility management is very low at the point of use. This is because the facility owner, who is a non-professional, cannot accurately request necessary information from the perspective of long-term facility life cycle management. The purpose of this study is to define the information necessary for facility management and to analyze the project operation method to procur this information to the client using BIM. To this end, this study analyzed the role of client and contractor, project delivery process, standards, and submissions in the BIM-based procurement area through USACE Air Force Hospital project case analysis. As a result of the analysis, if the client, who is the subject of facility operation, defines in advance the type and input method of necessary information in the operation stage, the client can receive the BIM optimized for operation from the contractor. The results of this study can be used to establish standards for receiving information necessary for establishment of procurement process and facility management of public institutions considering BIM introduction.

시공현장 BIM 운영 및 성과측정을 위한 사례분석

함남혁,김재준,Ham, Nam-Hyuk,Kim, Jae-Jun 한국BIM학회 2015 KIBIM Magazine Vol.5 No.2

Despite a lot of research on BIM, there is no quantitative study to measure accurately the performance of BIM coordination service. Thus, this study suggested method to measure the performace of BIM coordination services, applying queueing models in the field of management science. To analyze queuing system of BIM coordination services, a group of BIM coordinator were selected. Through focus group interviews with experts were used in the analysis to derive mean arrival rate(${\lambda}$), mean service rate(${\mu}$) of BIM coordination services. Single-server queuing model(M/M/1), multiple server queuing model(M/M/s) is utilized for the BIM coordination services performance measurement in construction phase. This study has significant quantitative performance measurement approaches that can be utilized in the decision-making for the improvement of the BIM coordination services and to support the review of the alternatives accordingly. But There is a limit but it is difficult to take into account the increase or decrease of the cost of alternatives according to the review.

미래 도시의 어반 모빌리티 플랫폼 : 사용자 공간 경험의 전환

함남혁,김주형,김재준,Ham, Nam-Hyeok,Kim, Ju-Hyeong,Kim, Jae-Jun 한국건설관리학회 2022 건설관리 : 한국건설관리학회 학회지 Vol.23 No.3

3D BIM 기반 철골 제작도면 산출 생산성 분석

함남혁,양정혜,여옥경 한국BIM학회 2019 KIBIM Magazine Vol.9 No.3

Extraction of fabrication documents is very important because it provides information related to tasks of fabrication and construction. Therefore, in the case of a prefabricated member such as a steel structure, it is necessary to improve the productivity of fabrication documents through 3D BIM. However, research and evidence data on direct comparison analysis of 3D BIM-based documents extraction versus 2D CAD-based documents extraction are hard to find. Thus, this study focuses on productivity analysis of 3D BIM based fabrication documents extraction. In this study, the productivity data of fabrication documents extraction for module construction of EPC project was analyzed. For the productivity analysis, a case study on the fabrication documents of Module A (1,965 sheets) and Module B (1,216 sheets) was conducted. Fabrication documents for each module include general arrangement drawing, assembly drawing, single part drawing and single plate drawing. Comparison of 2D CAD based fabrication documents extraction and 3D BIM based fabrication documents extraction, the productivity for the entire work was improved from 17 hours to 16 hours for Module A and 12 hours to 7 hours for Module B. Especially, the productivity of the assembly drawings, which occupies a large part of the fabrication documents, was improved by about 48.75% from the total time required from 281 hours to 144 hours.

디지털 패브리케이션 전문 건설업체 역할 및 성과 분석 : 비정형 포디움 시공 사례를 중심으로

함남혁(Ham Nam Hyuk),안병주(Ahn Byung Ju),김재준(Kim Jae Jun) 한국BIM학회 2018 KIBIM Magazine Vol.8 No.1

Recently, there have been increasing studies on the application of digital technology, which has its focus of the irregular building. However, most of these studies have not clarified the objective of the technology and the effectiveness of professional manpower on its performance. This study analyzes actual used technology and the role of specialty contractor. It presents a framework to quantify the performance of the specialty contractor. For these purposes, this paper presents a proposed method to evaluate the activities of specialty contractors using a queueing model. As an attempt to verify the model, an actual irregular building project, in which digital fabrication is applied, is investigated during the construction phase. In order to collect the digital fabrication data, digital fabrication reports and specialty contractor’s work log of project are reviewed. In addition, Digital Fabrication input personnel, productivity data are collected through interviews with experts involving in the case project. Analysis of specialty contractor’s performance in digital fabrication reveals that the wait status of project participants varies probabilistically depending on the digital technology application level. The results of this study are expected to contribute toward the improvement of the production level in the construction industry.

BIM(Building Information Modeling)을 활용한 건축 기획 지원 방안에 관한 연구

함남혁(Ham Nam-Hyuk),문혁(Moon Hyuk),이윤선(Lee Yoon-Sun),김주형(Kim Ju-Hyung),이순정(Lee Soon-Jung),김재준(Kim Jae-Jun) 대한건축학회 2008 대한건축학회논문집 Vol.24 No.7

Construction project pre-design phase is highly influential in setting the directions for the whole business and in project to proceed. Thus, it is essential to collect and analyze enormous amount of data related to construction project. So far, the pre-design phase in a project was depending on experts’ experience and intuition. However, as construction projects become larger and more composite, the amount of related information and analyzed data increases. Therefore, the necessity arises for a plan that could directly support the pre-design phase. In this paper, BIM was suggested as a tool that will support the pre-design phase, and so the concept and role of pre-design BIM is defined. The framework of pre-design BIM simulation is composed using the international standard model IFC and how the pre-design BIM simulation system can support the process is illustrated.

BIM 원격 교육 콘텐츠 평가 및 학습자 만족도 분석

함남혁(Ham, Nam-Hyuk),여옥경(Yuh, Ok-Kyung) 대한건축학회 2021 대한건축학회논문집 Vol.37 No.11

Along with the governments BIM activation policy, the demand for BIM education is increasing. Due to COVID-19, the BIM education environment is also rapidly changing to a non-face-to-face method based on digital technology. This study presented a BIM learning objective classification scheme based on Blooms digital taxonomy. Using this classification scheme, content analysis was performed on the learning modules of four BIM subjects. Content analysis included learning objectives and content, activity tools, lecture time, and amount of lecture notes. To analyze learning objectives, online recorded contents, lecture notes, lesson plans, and course plans provided through LMS were referred to. In addition, the results of the lecture evaluation and content satisfaction survey of learners in each subject were analyzed. By synthesizing the learning goal analysis and learner satisfaction analysis results of BIM subjects, constructive implications for distance education and BIM education were presented.

국가직무능력표준(NCS) 기반 교육과정 개발 및 운영에 관한 연구

함남혁(Nam-Hyuk Ham),김재준(Jae-Jun Kim),여옥경(Karen Yuh) 한국콘텐츠학회 2016 한국콘텐츠학회논문지 Vol.16 No.3

산업계 수요에 대응하는 교육과정 개발 및 운영을 위해 국가직무능력표준은 좋은 자원이다. 최근 4년제 대학은 경쟁력 강화를 위해 산업계 수요 중심의 교육과정으로 개편하려는 노력을 기울이고 있다. 하지만 국가직무능력표준은 전문대학, 폴리텍대학 등 직업교육훈련기관에서 기술 인력을 양성하는 데 초점이 맞춰져 있다. 이에 따라 4년제 대학의 국가직무능력활용 사례는 찾아보기 힘들다. 본 연구에서는 NCS 기반 교육과정 개발 및 운영을 위한 새로운 모델을 제시하고자 한다. 또한 NCS는 기존 교육과정을 보완하는데 활용하였다. 본 논문은 다음의 내용을 포함한다; NCS 기반 교육과정 및 교과목 개발 과정, NCS 기반 교과목 운영, 학습자 피드백. 최종적으로 본 연구는 향후 NCS 도입을 고려하는 4년제 대학 및 사이버대학에 실천적인 시사점을 제공할 수 있다. National Competency Standards (NCS) is a good resource for curriculum development and operations corresponding to the industrial damand. Recently, four-year colleges and universities are committed to a restructuring of the industry demand-driven training courses in order to strengthen competitiveness. However, NCS is focused to train the technical personnel in vocational training institutions(ex. College, Polytechnic University). Accordingly, NCS applications of four-year colleges and universities are hard to find. In this study, we propose a new model for NCS-based curriculum development and operations. Also, NCS was utilized to complement the existing curriculum. This paper includes the following contents; 1) NCS-based curriculum development process, 2) NCS-based course development and operation, 3) learner satisfaction analysis. Finally, this study provide practical implications to four-year colleges and universities to consider NCS application.

BIM 방식의 설계경기 평가지표 도출에 관한 연구

함남혁(Ham Nam-Hyuk),민경민(Min Kyung-Min),이윤선(Lee Yoon-Sun),김주형(Kim Ju-Hyung),김재준(Kim Jae-Jun) 대한건축학회 2008 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.28 No.1(계획계)

Architectural competition is widely used to obtain a ideal proposal about construction project. But there are many conflicts about competition result after architectural competition because guideline which is to select design proposal is ambiguous. Also construction market is change by BIM. Thus BIM design apply to architectural competition. The purpose of this study is making out indices to estimate objectively with when we progress design competition by BIM system. This study has been carried out limiting estimation indices within design competition for community housing, and the methods of this research are classifying estimation factors for activity categories in 81M competition. This study material is expected to be used as a good indicators to select the designer, and to improve the architectural industry in quality as well as the architectural design by selecting designer and design plan for community house and BIM design competition.