• 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.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2005.05a
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• pp.107-112
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• 2005

Renovation of existing sports facilities or construction of temporary ones for international complex games requires a wide variety of hundreds of sub construction projects to be awarded at the same time but there are few precedents required regarding the study of tendering process required in such cases. As award of construction contracts to build sports facilities for various international complex games is a critical determinant of fate of international complex games in the initial phase, it is very critical that adequate construction tendering process bedetermined. This research is aimed to study tendering cases for renovation or construction of critical international sports facilities to enhance efficiency of facility construction and define most reasonable tendering approach to satisfy schedule constraints often associated with international complex games and contribute to improvement of international competitiveness of their host cities and propose a direction for further development. This study also provides inputs to subsequent sports events of comparable scale to minimize trial and error.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2011.11a
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• pp.85-86
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• 2011

The temporary support system in Korea have been carried out generally along with installing supports, which are struts, anchors, rakers. However, most of existing support systems in application relatively have limitations such as cost increase, construction configuration, and displacement occurred with support systems. Thus, a new retaining support system(referred to as the SSR, NET No.533) was developed to solve the aforementioned problems. This study introduces the design, construction, and maintenance of the SSR system under the different construction conditions. The behavior and characteristics of the SSR system were identified based on the case studies.

• Journal of the Korea Institute of Building Construction
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• v.8 no.4
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• pp.61-69
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• 2008

The size of the construction projects become huge and complex, and the depth of excavation for the underground structures become deeper. Also the working area is not enough for loading materials and temporary facilities. This is the most case of recent construction projects in downtown area. Top-down is the most useful method for this kind of construction projects. Top-down construction method consists of supporting method, retaining wall type, foundation type and construction direction such as up-down or up-up. construction managers have to select sub-elements for top-down construction method in planning phase. This study is to suggest the sub-elements selection model for the top-down construction method, and the case study is conducted for evaluating this model.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2014.11a
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• pp.73-74
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• 2014

A construction method allowing exterior insulation working to be carried out simultaneously with vertical structural work through modification of the temporary vertical system form could be a breakthrough to invigorate exterior insulation construction in high-rise apartments. Therefore, the purpose of this study, as a preliminary study for developing such a method, was to derive significant engineering characteristics (E.C) using QFD which can reflect the users' need for E.C. Based on this result, a construction method will be developed in further research.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2014.11a
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• pp.69-70
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• 2014

For the curved concrete track construction of 2018 winter Olympic sliding center in Pyeongchang, in this study proposed the digital fabrication technology using CNC. This method can control the 3D geometries of the curved concrete structure based on the digital design. Conventional method generates the construction errors because this method fabricates many temporary zig bar using 1:1 full size drawing for install frozen pipes and sets up each zig bars at the construction site. Propose method is effective to ensure the precise fabrication and construction of zig bars. Also this method can eliminate errors of the frozen pipes position and curved concrete construction.

• Journal of Environmental Science International
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• v.14 no.6
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• pp.577-582
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• 2005

Enormous apartment complexes in urban areas, temporary inversion state and heat island effect occur due to the strong sunshine and weak wind speeds which hinders the dispersion of air pollutants that are emitted from neighboring areas of apartment complexes. In this study, analysis were conducted by using the Fluent code based on the CFD(Computation Fluid Dynamics), including building layout, material, building height from the ground surface, the heat, analysis of flow field in the apartment complex. It was estimated that the temporal radiation inversion phenomenon during the daytime, which was caused by the weak wind speed and higher temperatures in the upper level, contributed to the stagnation of the air pollutants in the lower layer of the apartment complex.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2009.05b
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• pp.195-198
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• 2009

In this paper, regulation for form work in standard specification among Korea and foreign countries are studied and compared. Within the scope of this paper, regulation regarding fabrication of form and form removal are mainly focused on. Standard specification prescribed by construction temporary equipment association provides detailed regulations and well arranged. ACI 347-04, CEB-FIP and BS EN 13670 had different style and scope compared to domestic specification. Especially, regulation for form removal in ACI prescribed in terms of minimum period.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2022.11a
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• pp.233-234
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• 2022

In Korea, various policies are implemented so that the socially disadvantaged (disabled, elderly, pregnant women, temporary disabled, etc.) can easily access individual facilities and areas. As the nation's interest in the socially disadvantaged increases, the need for BF certification is also emerging in buildings in private facilities. However, this system requires a lot of cost and time in the examination process, so if certification fails, social costs and time losses are high. To solve this problem, this paper presents a measurement plan for mixed reality devices using HoloLens, a mixed reality device hardware that can pre-check BF certification based on augmented reality, and Unity 3D, MRTK, a development tool.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2020.11a
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• pp.186-187
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• 2020

Damage to temporary facilities and structural members caused by excessive loads in the field continue to occur. If the load can be monitored in advance, the risk can be prevented. In this study, a load cell sensor is installed under the system support, and load data is wirelessly transmitted through a Bluetooth AP(wireless). Risk prediction system is proposed through an construction alarm when an abnormal load occurs through real-time multi-point monitoring by sensor location.