Proposição de diretrizes de projeto para o comissionamento de sistemas prediais em obras públicas

Abstract

Every public work aims to represent public policies and meet the general interests of society. Therefore, there is a demand for improvements in the requirements management practices of public works projects, since the lack of integration between the design and execution stages is the target of criticism and its consequences identified as the main reason for the stoppage of these works. In addition, the concern with the quality of projects grows, not only architectural, but of building systems, fundamental for guaranteeing the quality and performance of buildings. Among the various processes that deal with requirements management, Building Commissioning is a performance-oriented process focused on verification and documentation so that the commissioned systems follow the owner's requirements. The research problem is the lack of an integration model between the design and execution stages of public works. Thus, the objective of this work was to propose guidelines to implement the Commissioning of building systems in public building projects.The method to be used is Design Science Research, which seeks to contribute to the discipline where it is applied through theoretical artifacts, with the aim of solving real problems. The research was divided into four stages: (a) bibliographic review; (b) stage of explotation; (c) stage of development; and (d) stage of proposition. The bibliographic review accompanied the entire work. In the stage of explotation, the processes of contracting process and Building Commissioning Implementation were modeled. In the stage of development, the project bidding process model was compared to two ex-post-facto bidding case studies for completed public works projects, looking for opportunities to insert Commissioning. In the proposition stage, with the result of the case studies, the activities of the Commissioning implementation model were inserted in the project bidding model to elaborate a Preliminary Model of Building Systems with Commissioning, validated with a professional from the private sector. With the evaluations obtained in the previous stage, the model was refined to Model of Contract of Building Systems with Commissioning. The benefits of implementing Commissioning are documenting the owner's requirements throughout the entire process, in addition to promoting better compatibility between the architectural project and other building systems projects. Another benefit is assistance in supervising contracted projects and works. One difficulty for its implementation is the lack of technical staff in public institutions. The conclusion reached is that it is possible to include Commissioning in the bidding process without changes in legislation.