Planejamento operacional para execução dos sistemas prediais hidráulicos, sanitários e de gás combustível

Abstract

In an increasingly competitive civil construction market affected by the ever greater shortage of skilled construction labor, the correct calculation of work team size based on labor productivity data that are feasible and representative of each construction company is an important strategy for overcoming today s challenges. Construction work includes hydraulic and sanitary sewer systems and piped cooking gas installations for buildings, due to the fact that work team size is often calculated empirically. Thus, the objective of this work is to propose a method to calculate the size of teams for the execution of these systems, based on goals of labor productivity and operational planning for the execution of these services, by allocating the members of the teams to the jobs programmed within the timetable foreseen in the work schedule. The proposed method is divided into three main stages: (a) diagnosis of current labor productivity; (b) calculation of work team size and planning at operational level, involving programming of the activities of each work team over the period stipulated for the execution of the work; and (c) control of productivity according to the established goals. The method was applied at a construction site, specifically during the execution of the cold water supply systems and the sanitary sewer systems located in the wet environments of two multistorey residential towers. The method produced satisfactory results, improving labor productivity in the execution of the cold water supply systems by 20.1% and in that of the sanitary sewer systems by 27.7%.