• 한국실내디자인학회논문집
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• 제16권2호
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• pp.303-313
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• 2007

Nowadays, according to many studies, indoor space's pollution level is two to ten times higher than outdoor space's. This result arouses our attention. The major causes of deterioration of indoor air quality are the lack of ventilation caused by draught-proofing and insulation construction, and harmful chemical substances emitted from building materials, office machine and furniture. Therefore, we are continuing research to find the method for healthful house and production of many forms of well-being goods. However, because of exaggerated advertisements and the lack of accurate information, consumers choose the products whose performance is not verified. Therefore, this study investigates the actual conditions of pollution by building materials and the extent of the health damage by this pollution, and suggests the method for minimizing indoor pollution in aspect of indoor environment control and the use of environment friendly materials. But the building materials presented in this study are limited to the environment friendly construction materials that are in circulation In domestic market because this research is primarily aimed to give domestic consumers the standard for selecting this materials.

• 한국안전학회지
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• 제20권4호
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• pp.63-70
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• 2005

It has been used so many kinds of architectural materials and interior products in current building construction, and use of composite architectural materials is increasing with the development of chemical technology. As the green architecture has become the center of public interest, much effort is conducted in advanced countries on the LCA point of view, such as restriction of architectural materials that emitting pollution substances, developing of Non-Toxic architectural materials, and recycling of used materials, etc. with the cooperation of related organizations, material manufacture companies, and construction companies. Because the kinds of materials to be used in building constructions are so various, there might be some possibility of personal and subjective choice at the time of materials selection resulting the missing the requirements of building components and the choice of harmful materials to human. One way to resolve the material problem is to present the green architectural materials which coincide with the quality performance at service and not harmful to man and nature. At this point of view, this study aims to develop the material classification model by investigating the major labelling system about green architectural materials in both domestic and abroad and to implement an efficient material selection system by making a powerful database of environmental standard and quality basis of building requirements.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2022년도 봄 학술논문 발표대회
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• pp.227-228
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• 2022

In order to achieve the goal of cost management, which is one of the three major management goals of building production, this paper introduces an approximate cost estimating automation technology in the design stage as the importance of predicting construction costs increases. BIM is used for accurate estimating, and the quantity of structural members and finishing materials is calculated by creating a 3D model of the actual building. However, only 2D basic design drawings are provided when making an estimating. Therefore, for accurate quantity calculation, digitization of 2D drawings is required. Therefore, this research calculates the quantity of concrete structural members by calculating the area for the recognition area through 2D drawing recognition technology incorporating computer vision. It is judged that the development technology of this research can be used as an important decision-making tool when predicting the construction cost in the design stage. In addition, it is expected that 3D modeling automation and 3D structural analysis will be possible through the digitization of 2D drawings.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.94-102
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• 2013

The architecture, engineering and construction (AEC) industry is beginning to utilize Building Information Modeling (BIM), benefiting from the resulting improved visualization and productivity, better coordination of construction drawings, building documents that contain embedded links to virtual information, faster delivery, and lower costs. However, construction firms often face challenges when reorganizing their company structure to take full advantage of these benefits. This paper proposes an organizational structure that will enable engineering-construction firms to successfully adopt and implement BIM for major construction projects. A case study research method is utilized based on in-depth interviews with four BIM directors and vice presidents charged with BIM adoption, implementation and education. Organizational transformation challenges and recommendations are discussed in detail for those considering implementing BIM in the engineering-construction industry. Topics such as organizational changes in the firm, costs and benefits of BIM implementation, strategies of BIM implementation (execution) plan, BIM education, risks and opportunities associated with BIM, BIM software, contract methods, human resource management and new hires, and the future implementation and direction of BIM are discussed in detail.

• Smart Structures and Systems
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• 제15권5호
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• pp.1215-1232
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• 2015

In the present paper, a method for identifying damage in a multi storeyed shear building structure is presented using minimum number of modal parameters of the structure. A damage at any level of the structure may lead to a major failure if the damage is not attended at appropriate time. Hence an early detection of damage is essential. The proposed identification methodology requires experimentally determined sparse modal data of any particular mode as input to detect the location and extent of damage in the structure. Here, the first natural frequency and corresponding partial mode shape values are used as input to the model and results are compared by changing the sensor placement locations at different floors to conclude the best location of sensors for accurate damage identification. Initially experimental data are simulated numerically by solving eigen value problem of the damaged structure with inclusion of random noise on the vibration characteristics. Reliability of the procedure has been demonstrated through a few examples of multi storeyed shear structure with different damage scenarios and various noise levels. Validation of the methodology has also been done using dynamic data obtained through experiment conducted on a laboratory scale steel structure.

• 한국건축시공학회지
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• 제8권5호
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• pp.75-83
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• 2008

Larger and more sophisticated building construction requires more input resources such as worker, materials and devices. Growing resource volume brings risks at a construction site. The industry makes an effort to protect probable incidents at the site by organizing a safety management team. conducting a safety instruction and etc, but losses especially in the construction are higher than other industries. Major reason is that the safety management program is conducted only at the step of construction work and a root cause is not eliminated. Conventionally a concerned party shifts the blame to other parties such as constructor and site workers who are direct participants in the construction site. However, the whole causes of incidents go to the all subject of the construction not only the constructor but the client, designer and others related in the construction, and especially the clients are heavily involved in general concerns of the project. Therefore, this study is defined the role of the clients in nations and domestic condition of construction safety management is investigated. And it is analyzed surveys to prevent incidents at construction sites, and suggested the role of the clients which is classified pre and post construction, and in the middle of construction, and also categorized planning and design & construction schedule especially for the pre-construction level.

• 교육시설 논문지
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• 제24권4호
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• pp.3-14
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• 2017

Since the education law was changed in 1997, schools for K-12 education are required to build a multi-purpose auditorium which accommodates auditorium and a gymnasium functions. Evaluation of the present status of multi-purpose auditoriums will provide a clear direction for improvements in planning and design stages. The purpose of this research identifies the current status and major drawbacks of the multi-purpose auditorium through applying a performance evaluation tool kit called the Advanced Building Quality Evaluation Techniques(ABQET) and Graphic Analysis of Quality Quotient (GAQQ). In addition, the research will provide future foundations for planning and design methods for a multi-purpose auditorium.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2023년도 가을학술발표대회논문집
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• pp.233-234
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• 2023

Construction robot-based automation can contribute to productivity and quality improvement by replacing manpower in tasks that have simple repetitive properties or require high precision. In this respect, layout work is one of the most effective tasks in introducing robot-based automation technology. The development of a robotic layout system for building structures has recently been promoted in Korea, and a prototype of a marking robot has been produced. However, for commercialization, the technology improvement is required through the analysis of major improvement directions. Therefore, this study aims to derive the improvement priorities of the marking robot based on the evaluation of researchers who participated in the development process. As a result, there was a high demand for improvement in factors such as the robot's precise positioning method and robot size and weight. The results of this study are expected to serve as guidelines for the efficient input of limited resources in the future technology development process.

• 한국재난정보학회 논문집
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• 제8권2호
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• pp.148-157
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• 2012

최근 건축물이 대형화, 복잡화되면서 건축물내 거주자의 피난안전성이 관심의 초점이 되고 있다. 국내에서도 주상복합건물을 비롯하여 초고층 건물의 건축이 활성화되고 있는 상황이다. 초고층건물의 경우 화재 발생 시 계단을 통한 피난에 시간이 많이 소요되고 특히, 장애인의 경우 계단을 통한 피난 자체가 불가능할 수 있다. 이에 거주자의 피난에 엘리베이터를 이용하는 방법에 대한 연구가 진행되고 있다. 본 연구에서는 엘리베이터를 피난에 이용하기 위하여 엘리베이터 승강로가 연기에 오염되지 않도록 하는 연구의 일환으로 엘리베이터 승강로에서 엘리베이터 운행 시 엘리베이터와 승강로 사이의 유량계수를 시뮬레이션을 통하여 살펴보았다. 엘리베이터 샤프트의 유량계수는 엘리베이터 피스톤효과를 계산하는 주요 인자로서 본 연구의 결과는 엘리베이터 피스톤 효과에 대한 연구의 기초 데이터로 활용 가능하다. 유량계수 시뮬레이션은 상용 CFD 프로그램인 FLUENT를 이용하여 수행되었으며 시뮬레이션 결과 평균 유량계수 값은 0.93이며, 엘리베이터 샤프트 표면이 매끈하게 모델링되어 있으므로 손실을 고려하여 최종적으로 0.88이라는 유량계수 값을 얻었다. 현장 실험을 통하여 얻은 유량계수 결과값은 0.86으로 본 연구를 통하여 실험 결과 값이 보수적임이 검증되었다. 침투 저항성은 약 80~90%의 성능을 보여 만족할 만한 결과가 나왔다.

• 한국건축시공학회지
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• 제24권4호
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• pp.471-482
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• 2024

모듈러 건축은 스마트 건설방법 중 하나로 건설산업 혁신을 위한 필수적인 공법이 되고 있다. 모듈러 건축의 스마트 건설 실현에 필요한 가장 기초적인 전제 조건 중 하나가 품질관리이며 이를 위해 3차원 스캐닝을 이용한 품질관리 방안에 대한 관심이 높다. 본 연구는 모듈러 건축 프로세스 단계별(공장제작, 운송, 현장시공) 주요 공사를 대상으로 IPA분석을 통해 3차원 스캐닝을 이용한 모듈러 건축물의 품질관리에 대한 현황을 분석하고 이를 개선하기 위한 방안을 제시하였다. 그 결과, 대부분의 항목에서 3차원 스캐닝 데이터 활용에 대한 필요성과 중요성이 높다는 것을 확인할 수 있었으며, 일부 현장 적용성이 낮은 항목들에 대해서는 추후 기술개발 및 적용성 개선이 필요한 것을 알 수 있었다. 본 연구결과는 향후 모듈러 건축 품질관리를 위한 첨단 시공 기술 적용에 대한 연구에 활용할 수 있다.