Analysis of Physical Workload and Biomechanics in the Construction of Roofs in Wooden Frames

ABSTRACT

With the growing use of wooden frames in construction, particularly in the roofs, companies are concerned with workers quality of life and safety. The research aimed to analyze the physical workload (heart rate monitor) and posture (MICHIGAN methodology). The study was conducted in the municipalities of Alegre, Jerome Monteiro and São José do Calçado, located in southern Espírito Santo. Data was collected in three construction sites during the months of September 2010 to May 2012, analyzing 18 workers. In the analysis of physical workload, activities for the installation of trusses, purlins, rafters and battens, were classified as heavy, requiring rest times. Workers’ posture during the slats assembly favors injuries and requires the adoption of urgent ergonomic measures.

Keywords:
ergonomics; construction; work environment