Análise ergônomica do trabalho na execução de estruturas e vedações em obras de light steel frame
Resumen
Prefabricated building systems in Light Steel Frame - LSF are widely used in
developed countries like England, Japan and USA. As constructive process, the LSF shows a
progress compared to the traditional system is characterized by being an industrial building,
rationalized with high productivity and require one skilled labor. The ergonomic point of
view, such a system offers significant improvements in employees' working conditions and
despite these improvements are significant, we can still identify ergonomic problems related
to the activities of workers. In this context, this work aims, through ergonomic work analysis -
AET, to survey the critical activities performed during the construction process and a
diagnosis of the situations encountered on site. This research is exploratory to be keen to
discover and observe phenomena, trying to describe them, classify them and interpret them
and their driving was used as a research method, the case study. To capture the data, makes
use of ergonomic analysis of manual work - EWA (Ergonomic Workplace Analysis), METs
(The standard metabolic equivalent) and OCRA (Occupational repetitive actions) in which
the following items were considered: Load-lifting, accident risk, attention, general physical
activity, working postures and movements and repetitiveness of the work. Among the main
findings stand out: the high risk of this accident carrying out the work due to organizational
process of the company, moderate caloric expenditure in the execution of activities and high
IE OCRA present in fixing activities (screwing) the structures and the sealing elements.