Avaliação de efeitos de distorção de preço de insumos da SINAPI aplicado à tubulações e conexões hidrossanitárias em Erechim-RS

Abstract

During the budgeting process of a civil construction project, one of the biggest difficulties is the ability to accurately provide unitaty costs so that the project is viable, for the construction company and the client. When the latter is a public organization, the problem becomes more complex, as it is carried out with resources from taxpayers through a laborious bidding system, requiring a transparent methodology. Referential spreadsheet such as SINAPI proposes to provide parameters based on market research for budgeting, but though it has a national scope, it also has limitations. This thesis has aimed to analyze the effects of price distortions when these limitations are extrapolated, by comparing the value of the inputs provided by the system with those found in the local market in the city of Erechim-RS. As a result, it was possible to observe the existence of two from the three effects analyzed, namely the quotation effect, the brand effect, and the bargaining effect, which could not be observed by the methodology used. Among the scenarios, it was found the possibility of value reduction of 38.75% when compared to SINAPI, thus demonstrating the need for local analysis to increase the accuracy of the budget process.