• Journal of the Korea Institute of Building Construction
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• v.21 no.1
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• pp.41-49
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• 2021

This study was to solve the lift problem of the existing unit curtain wall type by using the vertical material mullion as a rail in curtain wall, which is recently used as an external finishing material for high-rise buildings. It has been shown that the application of the curtain wall mullion's rail can be quantified even at 20m/sec wind speed through the Mock-Up test. Based on the sites selected for comparison of construction methods, it was analyzed that the construction period could be shortened by 48 days, or about 20 percent. It was analyzed that the number of construction workers could be reduced by about 33 percent from the previous nine to six. Based on these results, assuming the installation of curtain wall units of 10,000㎡, it is judged that construction cost can be reduced by 80% or more.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2016.05a
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• pp.17-18
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• 2016

Today, many kind of buildings are higher than those of previous generations, and Curtain Wall is adapted broadly as an outer wall material. But weather and environmental condition could cause problems in curtain wall construction in most construction projects. High wind speed and unplanned lifting equipment's allocation could cause construction delay and cost increase. To solve these problems, we suggest using a curtain wall mullion as a rail to lift curtain wall which is less affected wind speed. And we would like to show a preliminary data of its economic advantage evaluation.