Diagnóstico e análise das causas de aditivos contratuais de prazo e valor em obras de edificações em uma instituição pública

Abstract

The greatest value of a public enterprise is the well-being that it provides to the population. Certainly, the use of resources should be as efficient as possible, however, it is notoriously difficult that public administration has accomplished the works within the desired standards of quality, cost and time. Thus, this study sought to investigate the existence of problems in the work of building a municipal public body involving excessive contractual amendments of cost and time over a period of 6 years, as well as the main causes and causing these additions in the various phases of developments that contributed to the completion of the work differed from what was planned in relation to the cost and time. the results confirmed the existence of a problem by revealing that 96% of the works had a contract amendment period and 72% had a contract amendment value. On average term of these buildings was more than double the originally planned, while the addition of the initially estimated cost was 16% on average. Interviews were conducted with three groups of engineers and architects related to these works. It developed an interview script in which the respondent pointed his perception of impact and frequency for a list of attributes that prejudicm the time and cost of works. Data from the interviews were analyzed by the Relative Importance Index (RII), Frequency Index (FI) and importance index (IMPI). The results make it clear that the main cause attributes of contractual amendments of time and intervals in the works of this public entity are highly related to failures assossiados services to the preparation of projects. Finally, they suggested some changes in the traditional way these projects are managed.