• Proceedings of the Korean Institute of Building Construction Conference
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• 2021.11a
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• pp.184-185
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• 2021

Based on changes in capacity demanded by society as a result of the 4th industrial revolution, as well as changes in the environment due to COVID19, it is necessary to adopt new educational methods in Korean universities. In response to such changes, there have been attempts to apply innovative teaching methods, such as flipped learning and blended learning. However, most studies are limited to either learning effects and/or satisfaction. Accordingly, this study seeks to contribute to the changing educational methods by developing online and offline blended building construction curriculum. The results of this study are as follows: combined education was made possible by developing a curriculum by dividing the online and offline environments. It is determined that the developed curriculum will be efficient and appropriate for the new environments.

• International Journal of High-Rise Buildings
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• v.9 no.3
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• pp.261-271
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• 2020

The 2020 National Building Code of Canada (NBC) and the 2021 International Building Code (IBC) both include Tall Wood Buildings (TWB) and are hailed as documents responsible for the proliferation of Mass Timber construction. Mass Timber construction is critical to reducing the carbon footprint of the construction industry; a sector acknowledged as being one of the greatest contributors of global annual CO₂ emissions. Origine, a 13-storey multi-residential building erected in 2017 in a previously unsuitable site, is currently the tallest all-wood building in North America. This article describes the challenges overcome by the designers and client as they engaged with code officials, building authorities, and fire-service representatives to demonstrate the life-safety performance of this innovative building. It also traces the development of the "Guide for Mass Timber Buildings of up to 12 Storeys" published in Quebec and how it has enabled other significant Tall Wood projects across North America.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2016.05a
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• pp.72-73
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• 2016

Working Posture is an important factor directly connected with quality and productivity of the construction project. In particular, High-rise building construction is required to manage the working posture due to the repetitive task and unfavorable working condition such as high place work, limited space. However existing construction planning of high-rise building construction has a negative effect on the labor's productivity because it is not insufficiently considered for working posture. Therefore the purpose of this study is to suggest a work that needs improvement by analyzing labor's working posture quantitatively using OWAS method. These results would provide the basic information to improve the productivity of the construction project by supporting the construction plan considering the working posture in high-rise building.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2014.11a
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• pp.102-103
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• 2014

Today, the potential safety risk is increased due to a construction industry is high-rised, mechanized, and complexed. Most workers injured in accident caused by lack of safety awareness. Therefore the safety education is focused in construction site, but it can not get workers' interest and has many problems to reduce construction accident. This study investigated the effects of education used BIM intended for workers in construction site to verify the objective effectiveness in future.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2021.11a
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• pp.40-41
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• 2021

Recently, particulate matter(PM) caused by internal factors such as industrialization and urbanization as well as external factors such as Asian dust is a serious problem in Korea. In particular, while the emission due to construction appears to be very serious among the internal factors, it is necessary to manage PM in consideration of the characteristics of construction sites. Accordingly, in this study, a PM management system suitable for construction sites was developed to reduce civil complaints caused by PM and to minimize damage to field workers and nearby residents by supporting the fine dust management system of the state and local governments. The factors to be considered when measuring PM due to the specificity of construction sites were considered, and the system components were developed based on the considerations. As a result, an IoT based construction site PM monitoring system (CPMS) that integrates each component was established.

• International conference on construction engineering and project management
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• 2015.10a
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• pp.304-309
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• 2015

On construction sites, it is important to monitor the performance of construction equipment and workers to achieve successful construction project management; especially, vision-based detection methods have advantages for the real-time site data collection for safety and productivity analyses. Although many researchers developed vision-based detection methods with acceptable performance, there are still limitations to be addressed: 1) sensitiveness to the shape and appearance changes of moving objects in difference working postures, and 2) high computation time. To deal with the limitations, this paper proposes a detection algorithm of construction equipment based on Integral Channel Features. For validation, 16,850 frames of video streams were recorded and analyzed. The results showed that the proposed method worked in high performance in terms of accuracy and processing time. In conclusion, the developed method can help to understand useful site information including working pattern, working time and input manpower analyses.

• International conference on construction engineering and project management
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• 2024.07a
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• pp.599-605
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• 2024

In an era marked by rapid technological advancements, the term "metaverse" has emerged at the forefront of discussions, yet its conceptualization remains nebulous, especially in specialized domains such as construction. The metaverse represents an interconnected digital realm where physical and virtual realities converge, enabling transformative experiences and collaborations. This study seeks to disambiguate the notion of the metaverse, particularly contextualizing it within the construction industry's paradigm. By juxtaposing the metaverse with existing technologies like Building Information Modeling (BIM) and digital twins, this paper elucidates the unique technological components that would define a construction-centric metaverse. This paper highlights precepts and requirements for a construction domain metaverse. Potential applications of the metaverse within construction settings are explored, offering practitioners insights into avenues for research and development. This research aims to offer a guide for industry professionals, technologists, and researchers, providing clarity on harnessing the metaverse's capabilities effectively and setting the foundation for its meaningful integration in construction endeavors.

• Journal of architectural history
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• v.18 no.1
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• pp.51-65
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• 2009

The inner gate(The last gate inside a temple, facing the main hall) is not a well-known part in the temple construction of Joseon. This study is focused on seeking truth about the inner gate arrangement of the existing temples as well as proving that it has changed while maintaining a certain relationship with the gate-pavilion arrangement. The inner gate is related to the Cheondo ritual which is letting the dead people's spirits go to heaven, mainly performed in Buddhism, and it has been demonstrated that the inner gate has gradually disappeared as the importance of gate-pavilions has been emphasized along with the changes of the ritual. The inner gate was a common construction before the 18th Century but since that time, it has gradually disappeared and finally it faced the main hall as the gate-pavilion and made the 4 halls-centered arrangement with the temple dormitories on both sides.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.05a
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• pp.207-208
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• 2023

The procedure of predicting the construction cost and selecting the best alternative is performed based on comparative review of each building case. In the case of office building, it is required continuously until design is complete, since the owner requirements are various and likely to change during the design process compared to a standardized apartment. However, since the comparison work for each alternative in practice uses only the unit construction cost, there is no correlation between the alternative and the final result, and it is difficult to quantitatively determine the effect of the determined design factor on the total construction cost. It is needed that a means to support the generation of design alternatives using similar building cases during the design phase. This paper proposes a BIM-based data replacing process to support creating and comparison of design alternatives of internal finishing for office building. When design alternatives are created through the proposed process, it is possible to compare several similar cases with current project under equivalent design circumstance. Because only some finishing properties are replaced while maintaining the shape information such as the length, height, and base constraint of the object to be replaced.

• KIEAE Journal
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• v.15 no.1
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• pp.147-154
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• 2015

Environmental impact assessment techniques have been developed as a result of the worldwide efforts to reduce the environmental impact of global warming. By using the quantification method in the construction industry, it is now possible to manage the greenhouse gas is to systematically evaluate the impact on the environment over the entire construction process. In particular, the proportion of greenhouse gas emissions at the production stage of construction material occupied is high, and efforts are needed in the construction field. In this study, intended for concrete products for the construction materials, by using the LCA evaluation method, we compared the results of environmental impact assessment and carbon emissions of developing products that have been applied low-carbon technologies compared to existing products. As a result, by introducing a raw material of industrial waste, showed carbon reduction. Through a comparison of the carbon emission reduction effect of low-carbon technologies, it is intended to provide academic data for the evaluation of greenhouse gases in the construction sector and the development of low-carbon technologies of the future.