• International conference on construction engineering and project management
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• 2022.06a
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• pp.370-374
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• 2022

Construction is a labor-intensive industry that heavily relies on skilled construction workers. However, the aging of the workforce is rapidly growing, and the shortage of skilled workers is intensifying. The application of construction robotics technology can solve the problem of workforce shortage and guarantee construction productivity, safety, and quality improvement. This study presents a framework of the functional analysis for construction processes and work tasks that classifies and analyzes processes and work tasks for construction robotics design. The framework presents the functional analysis process, which analyzes workers' attributes and identifies functions of construction robotics.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.11a
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• pp.94-95
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• 2013

Construction safety education plays role to provide necessary skills to workers for working safely. It is also important safety measure be used efficiently without any restriction to construction accident prevention. On this study, to develop effective education contents, we analyzed propriety of education contents used in construction sites, drew problem, and suggested the improvement direction.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2018.11a
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• pp.494-495
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• 2018

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2018.11a
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• pp.426-427
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• 2018

• Proceedings of the Korean Institute of Building Construction Conference
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• 2015.11a
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• pp.175-176
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• 2015

Starting from Guggenheim Bilbao Museum in 1997, it has been increased steadily that complex geometry buildings using digital designs and construction process. Since 2010, the domestic Freeform design has been widely used for buildings such as Dongdaemoon Design Plaza, Seoul City Hall, Tri-Bowl, and etc. But there are many defects such as the increased cost and period of construction, and the declined quality of construction because of the lack of optimized method and engineering experiences. Therefore, this study has an effort to review case study of the recent freeform buildings and construction methods using digital fabrications. And this study proposed the improve method for the construction quality for freeform buildings.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2013.05a
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• pp.197-198
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• 2013

As I mentioned, education cause accounts for a great part of accident cause. Therefore safety education is the important safety measure to be efficiently used for accident prevention. Domestic construction sites focusing big companies make an effort for safety education, but it is short of reducing construction accident with education applying educational contents to actual work. This study analyzed the education contents in domestic construction companies to provide basic contents for improving efficient education method, and drew a limitation of education contents used in construction cites.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2018.05a
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• pp.231-232
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• 2018

• Proceedings of the Korean Institute of Building Construction Conference
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• 2011.05b
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• pp.25-30
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• 2011

Almost prefounded columns for top-down construction certainly have construction tolerances in plan and plumbness. Therefore, it is very difficult to connect prefabricated beams to prefounded columns at each floor level after excavation by usual top-down connection method and this usual connection method leads to long construction time, increasing cost and decreasing quality. This paper presents a new method for connecting prefabricated beam to prefounded column with GROUT-JACKET CONNECTION SYSTEM consisting of sleeve, bearing-shear bands and grout. Details and illustrations of the connections and applications by GROUT-JACKET CONNECTION SYSTEM for the top-down construction are also included in this paper.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2019.05a
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• pp.226-227
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• 2019

The basic type construction cost which is the base of the building cost estimation is being adjusted according to the price changes by utilizing the apartment construction cost index in order to flexibly operate it. In this study, we analyzed the change trends and characteristics of the housing cost index for the basic type building cost model project operated from September, 2012 to March, 2018. As a result, the increase in material costs is slight while the share of the labor cost increased in the construction cost due to the rise of labor unit price, leading to a perceived increase in sensitivity of labor costs. We should be careful to keep the sensitivity of the material cost and the labor cost to an appropriate level so that the index may not be distorted.

• 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.