Pontes em estruturas segmentadas pré-moldadas protendidas: análise e contribuições ao gerenciamento do processo construtivo

Abstract

This work aims to contribute to the improvement of the construction process of bridges and viaducts in precast prestressed segmented structures built in balanced cantilevers, based on an analysis of the methodologies adopted and assessing the viability of the establishment of a model for management processes that use industrial methods for the execution of special bridges. Following a review of the available technical literature, and taking as reference the constructive methods used in two different construction sites, the constructive methodology is assessed, aiming the improvement of the manufacturing, launching and erection process, and the resulting reduction in costs, waste and time. Among the several aspects examined, we emphasize the importance of the use of a project management tool in precast bridges job sites, as they show themselves to be an industrialized, repetitive process, working almost like a manufacturing unit. This research, thus, proposes to supply subsidies for the establishment of guidelines for a better integration of project and job site, and the consequent improvement of execution in construction sites.