• 한국건축시공학회지
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• 제7권3호
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• pp.67-73
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• 2007

Increasing wages and decreasing skilled labors are problems awaiting solution. The development of automatic technologies contributes to accelerating the one of construction automation. Thus, this study is to suggest the way to develop the automated building construction system base on one performed in Japan in order to solve urgent problems of construction industry in Korea. Therefore interviews and questionnaires were performed based on experts who work for the automated building construction system field and analyzed through analytic hierarchy process. In doing so, it was the most important factor to develop a branch of automatic, mechanical or machine technologies for the automated building construction system. Especially the study indicated the importance of the technologies to substitute skilled labors such as a robot. This research could contribute to developing the automated building construction which is very unique and suitable for construction industry in Korea.

• 한국건축시공학회지
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• 제15권3호
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• pp.339-349
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• 2015

A large-scale research project to develop a robot-based automated building construction system for steel structures was successfully conducted in South Korea. This paper discusses the results of the real-scale test and the key lessons gained from the testing process. The system was assessed in terms of system productivity, construction cost, quality control, and safety improvements. While the productivity of the automated system showed an improvement of about 9.5%, the construction cost was about six times higher than that of the conventional method. The field test also indicated that the automated system requires more on-site quality control measures. However, because the system can eliminate the causes of various safety accidents, safety levels might be expected to be improved significantly. It is expected that this paper will provide knowledge and insight for developing new systems, and the results of the real-scale test might be useful for other researchers and similar research projects in the future.

• Journal of Construction Engineering and Project Management
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• 제2권2호
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• pp.1-17
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• 2012

The automated construction machines have been recently developed to help solve the construction industry problems that significantly affect labour, productivity, quality, and profit. Despite the importance of performance analysis to commercialize the automated construction machines, previous studies have mainly concentrated on developing hardware and software of automated construction machines. This research now focuses on two objectives: (1) to propose an analysis model which can measure productivity, quality, and safety improvement rate of automated construction machines based on research and development (R&D); and (2) to develop a performance analysis system which will aid the evaluator in analysing the performance of automated construction machines. Finally, it is anticipated that the effective use of the performance analysis model and computerized system will ably develop the high-performance, automated construction machines and establish the marketing strategy to increase not only the commercial value but also the upkeep and development of construction machines.

• 한국건설관리학회논문집
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• 제10권4호
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• pp.76-86
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• 2009

최근 건설현장에서는 기능인력 수급의 어려움과 숙련공의 노령화의 해법으로 건설 자동화가 추진되고 있다. 현재 국내 건설자동화 연구수준은 작업 단위의 로봇을 통한 부분 자동화의 단계를 넘어 완전한 자동화로 건설할 수 있는 시스템 개발의 단계에 접어들고 있다. 하지만 완전한 건설 장비를 갖춘 자동화 시공 시스템일지라도 시공자의 유연성을 완전히 모방하기 어렵고, 부재 종류의 다양한 변화에 빨리 대처할 수 있는 능력이 부족하다. 따라서 자동화 시공 시스템의 작업 능력을 향상시킬 수 있고, 자동화된 시공 작업에 쉽게 접근할 수 있는 방법 중의 한 가지는 자동화 시공하기에 쉬운 부재를 설계해 주는 것이다. 따라서, 본 연구에서는 자동화 시공 시스템에 적합한 부재를 설계하기 위하여 품질기능전개(QFD)기법을 적용한 디자인 개발 프로세스를 제시하였다. 이를 통해 시공 자동화 시스템의 효율성을 향상시켜 건설자동화 기술 발전에 기여하고자 한다.

• 화약ㆍ발파
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• 제15권2호
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• pp.53-72
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• 1997

It is impossible to precat the behavior of ground soil and structure accurately during underground construction in urban area or excavation in soft ground area because of difference between the assumed design condition and the actual site condition. Therefore, it must be managed by measuring system and correct the difference by real data. Large scale under ground construction in urban area like a seoul subway project has needed for Intelligent Construction technique, a field of the Engineering Contractor. The automated measuring system is developed for the technique. It is described that the procedure and the method of measuring work with application of the automated measuring system.

• 한국건축시공학회지
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• 제13권4호
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• pp.416-423
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• 2013

An adjusted assessment model based on benefit-cost analysis (BCA) is proposed for evaluating the economic efficiency of automated construction technologies. In contrast to conventional BCA, the model does not compare monetary values, but the differences in benefits and costs between traditional and automated construction methods. To verify the usefulness of the model, it was applied to a real-scale building construction project that used a fully automated building construction system, and the face validity of the model was confirmed. The results indicate that the model can support decision makers in identifying valuable benefit factors and in assessing the cost effectiveness of the system.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.637-638
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• 2015

There has been growing interests in life-cycle project management in the construction industry. A lot of attention is given to Building Information Modeling (BIM) which stores and uses a variety of construction information for the life cycle of project management. However, due to the additional workload arising from BIM, its expected effects versus its input costs are still under discussion in practice. As an attempt to address this issue, one of previous studies suggested an automated linking process by developing Standard Classification Numbering System (SCNS) and Geometry Breakdown Structure (GBS) to enhance the efficiency of integration process of BIM objects, cost, and schedule. Though SCNS and GBS facilitates identifying all different dataset, making object sets and linking schedule activities still needs to be manually done without having an automated tool. In this context, the purpose of this paper is to develop and validate a fully automated integration system for 3D-objects, cost, and schedule. A prototype system for single family homes (Hanok) was developed and tested in order to verify its efficiency.

• 국제초고층학회논문집
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• 제11권2호
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• pp.115-124
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• 2022

Welding is a significant part of the construction industry. Since most high-rise building construction structures rely on a robust metal frame welded together, welding defect can damage welded structures and is critical to safety and quality. Despite its importance and heavy usage in construction, the labor shortage of welders has been a continuous challenge to the construction industry. To deal with the labor shortage, the ultimate goal of this study is to design and develop an automated robotic welding system composed of a welding machine, unmanned ground vehicle (UGV), robotic arm, and visual sensors. This paper proposes and focuses on automated weaving using the robotic arm. For automated welding operation, a microcontroller is used to control the switch and is added to a welding torch by physically modifying the hardware. Varying weave patterns are mathematically programmed. The automated weaving is tested using a brush pen and a ballpoint pen to clearly see the patterns and detect any changes in vertical forces by the arm during weaving. The results show that the weave patterns have sufficiently high consistency and precision to be used in the actual welding. Lastly, actual welding was performed, and the results are presented.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2007년도 정기 학술대회 논문집
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• pp.357-360
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• 2007

In the area of domestic construction industry, recently, standardization of construction. globalization of constructional and a building information arc required to advance increase productivity, shorten the term of works and reduce the cost of construction. The objective of this is to offer basic data of process new thesis and development for automated building equipment design system based on 3D CAD building information. This study contribute the development of automated Building equipment design system based on 3D which helps to conduct the equipment design handily and quickly.

• 한국건설관리학회논문집
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• 제9권2호
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• pp.67-80
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• 2008

국내의 경우 2000년 이후부터 건설교통부의 지원 하에 건축/토목/메카트로닉스 전문가 집단을 중심으로 경쟁력 있는 건설자동화 기계들이 개발되어 현장에 시험 적용되어 왔다. 개발완료된 자동화 기계의 성능을 분석하여 재래식 방식과 비교한 자동화 방식의 효율성을 제시하기 위한 연구가 수행되었으나 자동화 기계 연구개발 과정에서 요구되는 성능 분석을 체계적으로 수행하지 못하였다. 또한 자동화 기계 개발의 중요한 목적의 일부인 안전성 및 품질 향상 정도에 대해서 정성적으로만 기술함으로써 자동화 기계 개발의 종합적 가치 분석이 수행되지 못한 점은 문제점으로 지적되어 왔다. 따라서 본 연구에서는 자동화 기계 연구개발 단계를 타당성 분석 단계/제작 단계/실용화 및 마케팅 단계로 구분하고 각 단계에서 요구되는 건설자동화 기계의 성능 분석을 효율적으로 수행할 수 있도록 성능 분석 절차 및 방법론의 제시를 통해 건설자동화 기계의 종합적 성능 분석 모델 및 시스템을 개발하였다. 본 연구를 통해 제안된 성능 분석 모델 및 시스템의 활용을 통해 건설자동화 기계 개발 타당성 분석 및 현장의 요구사항을 만족시키는 우수한 성능을 지닌 자동화 기계를 개발할 수 있으며, 개발된 자동화 기계의 마케팅 전략을 효과적으로 수립할 수 있도록 함으로써 건설자동화 기계의 확대 보급 및 실용화에 기여할 수 있을 것으로 기대된다.