Desenvolvimento de um modelo utilizando inferência estatística para estimativa de custos de reforço e alargamento de pontes em concreto de pequenos vãos

Abstract

The bridges of the Brazilian federal highways were implemented from 1940 and are reaching their useful life, 50 years initially planned. Most of these bridges are deteriorated and need interventions to rehabilitate its structure. Besides, there is a demand to adapt the current loads and the new transverse dimensions. Therefore, they need reinforcement and widening of template to give users the highest level of comfort and safety. The great challenge is to rehabilitate these concrete structures respecting current economic constraints, therefore the cost becomes a decisive factor in the selection of the best solution for the problem. In this work was developed, through statistical inference, a procedure for generation of numerical models that can be extrapolated, to estimate the cost of reinforcements and widening. Such a model will facilitate the economic and financial viability of application analysis of possible established solutions. Thus, propose a faster solution to help public agency or executors in the stages of planning and control, since with the model there won’t be need to budget intervention through project contracting.