Title Trend Analysis of Labor Input Ratios by Work Types in Apartmetn Housing Constructions
Authors Jeon, Sang-Hoon ; Koo, Kyo-Jin
DOI http://dx.doi.org/10.6106/KJCEM.2015.16.5.097
Page pp.97-104
ISSN 2005-6095
Keywords Apartment Housing ; Work Types ; Labor Ratio ; Trends in Labor Ratio ; Historical Cost Data
Abstract Apartment Housing 25 in the field of construction since 2000 collected by types of labor: reinforced concrete, plaster, internal, equipment, electrics·communication, the other work. And the performance of labor input was collected in the amount of construction work performed on a monthly basis. After changing the construction period in the standardization work that is 100% of the construction period, the amount was converted into labor ratio by type. Analysis of the input flow rate and the amount of labor conclusions were as follows: ① The size of the labor rate is reinforced concrete work (38.25%), plastering work (5.10%), internal work (5.67%), equipment work (9.10%), electrics·communication (8.76%), the other works (33.12%) and the size of labor rate is the largest work in reinforced concrete work. ② The peak of labor input ratio was from 52.5% month to 62.5% month. This was when the labor rate of 3.6%. ③ The period month of the largest labor ratio% is 35% month by reinforced concrete construction, and this time it was 2.12% per month labor rate, and reinforced concrete construction is finishing from 65% month to 80% month. This showed the greatest congestion of mutual interference between each works is being continue. The results of this study are the greatest congestion in apartment housing construction has informed the high period(%months), which is essential to a successful project.