병영시설 외벽균열의 영향 요인 분석

Abstract

Recently domestic construction business has been doing a variety of efforts in the range of high quality that gives customers satisfaction, to minimize original cost of the structure such as automation, mechanization of carry-out. However, the business has a lot of difficulties such as huge dependence on human power, poor work continuity as one time production and its efficiency is mainly driven by regional environment and weather condition due to outdoor moving production. Besides, because of standard calculation of the product and officially fixed work wage which are far from the reality and hardly existing productivity indicators as method and sort of construction, systematic productivity management make inefficiencies in the business. So this has done research about the examples of RC school buildings, and of them, investigate real work productivity in reinforcing rod concrete construction which is major sort of the carry-out portion, and also compares to work productivity applied by standard productivity calculation, then offers basic conclusion for improving the efficiency in the business. The following is conclusion. 1. Comparing input work amount applied standard calculation and real input amount in construction field, the overall number of input mechanic and ordinary worker in the field is decreased. This says that officially fixed wage is not high enough to induce workers to certain amount of works. Therefore, appropriate official wage should promote the sites. 2. An amount of input work is 10 times higher than ordinary workers’ in molding and reinforcing bar portion, and, in concrete portion, 4 times higher than that. This says that unlike treat the trainees as general workers in past, as minute process is specialized and standardized, the trainees in input to the field as veteran. 3. In molding construction, standard has been generalized as modulation of the molding forms, in iron rod portion, as mechanization in its process of production and treatment, its dependence on specialized worker’s craft is getting lower. Therefore, work productivity is more equalized and improved than past’s. 4. Calculating input amount of work by applying standard calculation, in molding and iron rod sessions, huge error has occurred due to ignorance of heavy equipments such as cranes. Therefore, precise calculation about input vehicles such as pump cars and cranes is quiet necessary in standard calculation. 5. Since its level is from top to the bottom in each construction session, respectively different standard products must be needed in each work session. In molding session, pillars and slab apportion in iron rod session which are somewhat complex processes, should need specially applied forms. As a result of comparison for input amount of work standardized in calculation and real input, huge error has been occurred. So precise wage application is necessary with consideration of input equipments, and also calculation as each work’s difficulty should be more desirable than uniformed calculations.