CONCRETEGRID: A COMPUTATIONAL TOOL TO ANALYSIS AND DESIGN OF STRUCTURAL GRIDS IN REINFORCED CONCRETE

Resumo

The structural solution in grids is widely used in civil construction, as in building floors and bridge
boards, due to its large bearing capacity. The grids are structural systems composed of a set of linear elements
(beams) belonging to the same plane, designed to resist the solicitations coming from not coplanar actions to this
system. Its large bearing capacity is due to the stiff connections between the beams that compose the structural
grid, allowing the loads applied to a single beam to be redistributed to the others, so that all elements work together.
Therefore, the stiffness relationship imposed by the nodes, be related to bending or torsion, implies in a formulation
adapted to the impact on the structure's behavior, in efforts and displacements. In this context, we present the
application ConcreteGrid, a computational tool developed in Python programming language for analysis, design
and verification of grid elements in reinforced concrete structures. The computational implementation allows the
user to define the structure of interest with its loads, providing the analysis of displacements and acting efforts,
considering the dimensioning of the longitudinal and transversal reinforcements of the grid beams, as well as the
verification of the reinforcements in terms of satisfying the criteria of ultimate. The validation of the presented
tool is performed through the analysis of applications available in the literature, proving the relevance of the
formulation used and the computational implementation performed.