• 한국건축시공학회지
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• 제10권1호
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• pp.49-56
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• 2010

건설산업은 타 산업분야에 비하여 체계화되지 못하고 경험 또는 관습에 의한 의사결정이 이루어지는 경우가 빈번하여 생산성 향상이 적극적으로 이루어지지 못하고 있는 실정이다. 특히, 대단위의 건설생산이 이루어지고 있는 공동주택의 공사에서 생산성 향상을 위한 과학적이고 분석적인 연구가 수행될 경우 그 파급효과가 대단히 클 것으로 기대된다. 따라서 본 논문에서는 공사원가에 가장 큰 영향을 미치는 공동주택 골조공사 중 주요공종인 거푸집공사의 효율적인 생산성 향상을 위한 공법개선안을 제시하고자 생산성 측정기법으로 워크샘플링을 활용하였다. 기존 거푸집공사에 대하여 작업절차를 분석하고, 각각의 작업별로 생산성을 분석하였다. 기존 작업법에서 분석된 문제점을 기반으로 개선방안을 제안하였다.

• 한국식품조리과학회지
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• 제15권1호
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• pp.8-15
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• 1999

The purposes of this study were to estimate the work measurement by the work sampling methodology. The results of the study were summarized as follows; The percentage of labor activities based on the analysis of work sampling were as follows; 1) In the A welfare facilities for the elderly, direct work function, indirect work function and delay were 68.28%, 8.73%, 22.99%, respectively. 2) In the B welfare facilities for the elderly, direct work function, indirect work function and delay were 70.04%, 9.42%, 20.54%, respectively.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 춘계 학술논문 발표대회
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• pp.200-201
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• 2014

The construction industry in recent years, due to the multi-species engineering specialty, interest and importance of human resource management is growing. But, not many studies on the operation ratio are being proceeded due to the difficulty of casting people on site and actual survey. Thus, this study proposes the work type-specific quantitative operation ratio through work type-specific operation ratio analysis of reinforced concrete construction which takes up an important part of construction work.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2014년도 춘계 학술논문 발표대회
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• pp.34-35
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• 2014

When various construction types of architectural construction are proceeded in order, the reinforced concrete construction is the frame construction which takes up the most important proportion among the construction process. Thus, the analysis of the effectiveness and productivity of the reinforced concrete construction is necessarily needed for smooth performance of construction projects. However, the conventional studies are performing the analysis of the productivity of only part(mould and steel) of the reinforced concrete construction and they have limitation in that they do not propose quantitatively the overall productivity of reinforced concrete construction.

• 대한인간공학회지
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• 제27권3호
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• pp.53-60
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• 2008

The work-related musculoskeletal disorders have constantly increased since it became an issue in 1996. In 2002, the Government established the risk factors analysis system in order to prevent musculoskeletal disorders. The proclamation by the Ministry of Labor defined eleven spheres of work associated with musculoskeletal disorders. As a result, business proprietors, who have workers engaged in tasks associated with musculoskeletal disorders, are required to conduct the risk factor analysis on a regular basis every three years. However, numerous issues have been raised while carrying out the risk factor analysis in various industries. One of the issues is that even though work sampling is an ideal method in risk factor analysis, most cases have selected extreme task postures, which is judged by an expert, due to limited time. This study will propose the desired direction of the risk factor analysis by comparing task assessment results between work sampling scenes and extreme task scenes.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 춘계 학술논문 발표대회 1부
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• pp.211-212
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• 2011

The construction industry has become larger and higher in size. The process of high-rise building construction is complicated and has various conditions affecting productivity. Analysing productivity in high-rise buildings is difficult despite the various productivity analysis methods. In this study, data was collected from actual construction site to analyse the productivity of curtain wall operation by means of Work sampling and Method Productivity Delay Model. As a result, this paper suggests advantages and disadvantages deducted from comparing the two productivity analysis methods.

• 한국식생활문화학회지
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• 제11권5호
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• pp.673-681
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• 1996

The purposes of this study were to: a) investigate the percentage distribution and the time spent of dietetic activities and b) estimate dietitian's staffing needs in employee foodservices. In 6 employee foodservices, the dietetic activities were analyzed by work sampling methodology. The results of this study were as follows: 1. The percentage distributions of dietetic activities, delay and non-dietetic activities were 79.06, 20.39, and 1.55%, respectively; 2. The major activities of dietitians in employee foodservice were production management 21.00%, purchasing management 16.73%, record keepig 14.40%, and menu management 6.30%, 3. The total labor time per week was 3,310 min (55.16 hr) and specially the time spent on 13 dietetic activities was 2,626 min (43.77 hr). 4. The time spent per week on major activities of dietitians such as production management, purchasing management record keeping, and menu management were 693.93, 554.83, 483.99, and 205.22 min, respectively.

• Journal of Nutrition and Health
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• 제26권4호
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• pp.443-454
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• 1993

The purposes of this study were to analyze the work patterns of selected hospital foodservices by Work Sampling methodology, and to investigate the relationship among operational factors affecting productivity. The hospitals were classified into 3 groups by the percentage of patient meals, and the percentage of special patient diet, and the menu items of patients meals. The groups clustered were characterized by productivity. Work Sampling methodology was utilized to analyze the work patterns of hospitals with selected 3 hospitals to investigate the productivity the productivity and labor times used in each work functions. Productivity index analyzed by Work Sampling were 10.36 min/meal, 10.95 min/meal, and 12.19 min/meal, respectively X, Y, Z hospital. Z hospital was significantly different from time used in direct work function and delay. Direct work function time was the highest, delay the lowest in Z hospital. The relation between the results of Work Sampling and the productivities of 3 groups showed not by delay but direct work function in the classification used in this study.

• Journal of Nutrition and Health
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• 제35권2호
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• pp.263-271
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• 2002

The purpose of this study was to determine the standard work time of dietetic staff through work sampling methodology in school flood service systems. Work measurement through work sampling methodology was conducted in five conventional, five commissary and five joint management flood service systems over two consecutive weeks in October 1999. Statistical analysis was performed on the SAS/Win 6.12 package program for Kruskal-Wallis test and multiple comparison. Observed data were satisfied with a confidence level of 95% and a confidence interval of $\pm$ 0.05. The results of this study can be summarized as follows. The actual time spent by dietetic staff members in conventional, commissary, joint-management flood servile systems was 2,394, 2,521 and 2,110 minutes per week, respectively. Transportation time of each flood service systeml and ILO allowance rate (11%) was applied. Thus, the standard work time per week of dietetic staff members in conventional, commissary, joint-management flood service systems was 2,746.14, 2,861.58 and 2,520.81 minutes, respectively. The standardized index was 1.04, 1.08 and 0.95 men in conventional, commissary, and joint-management flood service systems, respectively. Regardless of the school flood service system, those with "the duty of cooking and distribution management" had the longest labor time, while those with "duty of nutritional education" had the shortest labor time.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.523-526
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• 2002

벽식구조 골조공사에서 거푸집공사는 원가에 지배적 비율을 점하고 RC 구조체의 중심공법으로 활용되고 있기 때문에 체계적이고 효율적인 공법개선이 요구된다. 이에 본 논문은 거푸집공사의 품질 및 생산성향상을 위한 공법개선을 목적으로 한다. 과학적인 분석기법을 통한 기존 벽식구조 거푸집공사의 문제점을 개선하고자 생산성 분석기법인 워크 샘플링을 활용하였다. 개선안을 도출하기 위한 방법론을 제시하고, 개선방향에 따라 거푸집공사의 품질 및 시공단순화를 위한 유닛화 및 기계화 방안으로 키커폼(kicker form)을 제시하였다. 이는 거푸집공사 수행에 있어 불필요한 작업프로세스를 줄이고 생산성 및 종합적인 시공품질이 향상될 것으로 판단된다.