• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.11a
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• pp.51-52
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• 2023

Recently, heat island and dry island phenomena occur frequently due to land surface development and excessive energy consumption in urban areas. As a result, the surface temperature of the building and the entire temperature of its surroundings are increased, and as a result, the durability of the building is rapidly deteriorated. In order to suppress these causes, a method of maintaining the temperature of road heating wires was implemented as a temporary measure, but this did not predict climate change. Therefore, this study is a method to measure the compressive strength, density, and thermal conductivity of light weight concrete using waste glass foam beads. After fabricating a simple chamber, the temperature and humidity of the inside and outside were measured with an Arduino device in consideration of external factors. Therefore, if waste glass foam beads made through proper mixing are constructed in the urban center, the quality of the urban can be improved.

• Journal of Korean Association for Spatial Structures
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• v.11 no.4
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• pp.109-119
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• 2011

To date, a smart base isolation system has been developed in high seismicity region such as Japan, USA etc. Smart base isolation systems developed for structures in high seismicity region cannot directly applied to structures in regions of low-to-moderate seismicity such as Korea. Therefore, problems that occur by applying the smart base isolation system developed for the structures in high seismicity region to the structures in regions of low-to-moderate seismicity have been investigated in this study. To this end, a spacial arch structure was used as an example structure and MR dampers and low damping elastomeric bearings were used to compose a smart base isolation system. Artificial earthquakes were used for ground motions in regions of high and low-to-moderate seismicity. Based on numerical simulation results, it has been known that the capacity of smart base isolation system for the regions of low-to-moderate seismicity should be carefully designed because the base isolation effects of the smart base isolation system for high seismicity region is deteriorated when it is applied to the structures in regions of low-to-moderate seismicity.

• Construction Engineering and Management
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• v.25 no.5
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• pp.83-85
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• 2024

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2019.06a
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• pp.199-201
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• 2019

최근 경주 포항 지역에 지진피해 등 대구 경북권의 잦은 재난 발생으로 인해 증대되고 있는 노후학교 건축물의 안전성 위험 문제에 대한 선제 대응이 필요한 상황이 요구되고 있다. 학교 건축물에 건물의 위험도를 파악할 수 있는 센서들을 부착하고, 실시간 모니터링을 통해 건물의 구조적 위험성을 판단한다. 건물의 위험도가 심각한 단계에 이르면 스마트폰(Smart Phone) 앱(Application)과 음성안내방송을 통해 건물의 재실자와 관리자에게 즉시 경보를 발령하며, 대피할 수 있도록 가이드를 제시 한다. 이에 본 논문에서는 스마트 재난경보방송을 위한 스마트폰 애플리케이션(application)을 통해 재난 상황을 전파하고 대응할 수 있게 건물의 위험성 발생 위치정보를 제공하며 대피 안내 정보를 제공한다. 동시에 건물의 구내방송 시스템과 연계를 통해 음성 안내방송을 자동으로 수행하며, 두 가지 방식으로 재난 메시지를 전파하여 중복성을 가지고 경보 전파를 수행한다.

• Journal of the Korea Institute of Construction Safety
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• v.4 no.1
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• pp.22-29
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• 2021

To prevent fall from height, interest in the development and introduction of smart harness is increasing as policies and laws such as mandatory use of smart safety equipment at construction sites. However, despite the potential of smart harness, construction safety cannot be contributed unless adopted or used by users. The objective of this research is to examine the perception between safety managers and workers on smart harness, user perception according to user's experience and differences through semi-structured in-depth interviews. As a result of the interview and comparative analysis, both safety managers and workers perceived smart harness as uncomfortable, and workers with experience in using smart harness perceived that simple functions that inform risks are useful for securing safety. This research results show different user's perception of smart harness can be confirmed how much factors affect the use of smart harness, which can provide implication into establishing measures to strengthen the use of smart harness in the future.

• Korean Architects
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• s.562
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• pp.66-79
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• 2016

• Korean Architects
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• s.586
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• pp.152-157
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• 2018

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.05a
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• pp.195-196
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• 2023

In this study, the mechanical properties, alkali-silica reaction(ASR) expansion and residual mechanical properties after ASR of waste glass fine aggregate(GS) mortar according to mineral mixture were evaluated. As a result, it was found that the mineral mixture reduces the ASR expansion. However, mechanical properties and residual mechanical properties have decreased.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.05a
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• pp.109-110
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• 2023

In this study, mechanical properties of high strength cement composites (HSC) containing recycled glass powder (GP) after heating were investigated. As a result, at 100Mpa, as the heating temperature increased, the compressive strength increased while the elastic modulus decreased . At 140Mpa, after heating at 300℃, the spalling occurred excluding GP0, and it is believed to be due to the high density of HSC.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.05a
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• pp.217-218
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• 2023

In modern architecture, tiles are used as a decorative material to enhance the appearance of buildings. However, defects occurring during tile installation affect not only the appearance of the building, but also its maintenance. This study aims to investigate stable tile installation by producing tile modules using the floating mortar method and conducting freeze-thaw tests to measure their adhesion strength. Test results showed that the adhesion strength increased as the mesh size decreased, except for S3 mesh. This study highlights the importance of research on tile installation to solve problems related to building appearance and maintenance.