Estudo de caso: produtividade variável para obras residenciais em Toledo - PR

Abstract

This study examines labor productivity for selected residential .The research involved data collection at two construction sites, with measure ments conducted every two days. Based on this, the Unit Production Ratio(UPR) was calculated for services including masonry, formwork, slab assembly, concreting, roofing, screeding, and mortar coatings. During data collection, occurrences recordedin the work diaries were noted to identify intervening factors such as material shortages, lack of workers, and other issues. The data analysis focus edonidentifying a productivity range for each service and comparing it with the productivity indices provided by the National System for Researching Construction Costs and Indices (SINAPI) and the Price Composition Table for Budgets (TCPO). The cumulative UPR results revealed high coefficients of variation for most services, with labor shortages being the most frequent issue. To facilitate comparisons between the two construction sites and the SINAPI and TCPO tables, a labor cost estimate was developed for executing the analyzed services in a 70m² residence. The findings showed that using SINAPI data resulted in the lowest labor consumption. The difference in the number of hours calculated based on data from the two constructionsites was 26%. One of the sites produced results similar to those in the TCPO data.