Abstract
The amount and market size of apartment complex exterior wall painting work continues to increase each year in South Korea. Nevertheless, there are difficulties with the supply and demand of human resources due to the high risks associated with conventional painting work. To resolve these issues, research and development has recently been conducted on a Gondola-type Exterior Wall Painting robot (GEWPro). The aims of this study were to develop a performance evaluation and life cycle cost (LCC) analysis model for a GEWPro and deduce its performance and economic efficiency through a case study. According to the results, the performance of the automated method was 16.8% higher than that of the conventional method, and the economic efficiency was also superior (benefit/cost ratio 6.39). These results show that the proposed performance evaluation and LCC analysis model can predict the productivity and economic efficiency of automated methods.
Highlights
The number of newly constructed apartment complexes in South Korea continues to increase each year
In the case of existing apartment complexes to which exterior wall painting has been applied, full-scale repainting on the entire outer wall of an apartment should be performed every five years using a fresh coat of paint according to the long-term repair plan of the Korea Housing Act [2] to enhance the long-term durability and sustainability of the buildings
For a performance evaluation and life cycle cost (LCC) analysis of Gondola-type Exterior Wall Painting robot (GEWPro), apartment complexes comprised of residences, 99.0~115.5 m2 in size, which form the highest proportion (24%) among all apartments being built in South Korea [1], were considered for the case study
Summary
The number of newly constructed apartment complexes in South Korea continues to increase each year. An analysis of the repainting frequency for 50 apartment complexes in metropolitan areas of South Korea showed that exterior wall repainting was performed every 5.34 years on average. It is expected that the market for exterior wall painting of apartment complexes will grow even more in the future considering the enormous number of dwellings in apartment complexes in South Korea. Exterior wall painting for apartment complexes is performed by laborers working from a suspended scaffold. The intensity of an accident would be very high when it does occur because exterior wall painting work is performed after the safety structures (safety net, flared shield in, etc.) have been removed from the exterior walls. CoLnCcClusaionnaslyasnisd. rCecoonmclmuseinodnastioands arreecommadmeernedgatridoinnsg athre vmaaludeeorfeigmaprdleimngenthtiengvanludecomf immeprlceiamlieznintignGg EaWndPrcoo.mFminaelrlcyi,atlhizeinpgerfGoErmWaPnrcoe. eFvinalaullayt,iotnheanpderLfoCrCmaannacleyseivsamlueatthiondoalnogdyLaCnCd tahneamlyosidseml pertehsoednotelodgiyn athnids stthuedmy coadnelbepraedsaepnted tion athniaslysztuedthyecapnerbfoeramdanpctedoftoananyaolythzeertchoenpsetrrufocrtimonanacuetoomf aantiyonotmhearcchoinestorur crtoiboonta. utomation machine or robot
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