Análise estrutural de um edifício em concreto armado com quatro pavimentos: estudo de caso para diferentes modelos estruturais

Abstract

Structural analysis is characterized by the acquisition and evaluation of the efforts of the structure on the actions that had been imposed on it. Therefore, in order to perform the structural analysis a structural model is required, and this is characterized as a prototype that seeks to simulate the actual structure. Over time and the advancement of computing, have emerged more realistic structural models to represent the reinforced concrete structures in these analyzes. Therefore, the objective was to perform a comparative analysis of different structural models applied to a reinforced concrete building with four floors with software employment SAP2000. Thus, to the study of the requests at the beams approximated methods were employed (continuous beams), represented grid beams, represented grid beams and slabs, and finally, space frame with represented grid slabs, this latter being subdivided in with and without loading wind. Furthermore, in the analysis of the pillars were used an approximate method (continuous beams) and space frame with represented grid slabs, also with and without loading wind. Structural analysis showed that the space frame with represented grid slabs simulates a more realistic structure, and to neglect the loading wind focusing on the building produces inconsistent results of reality to be performed. Another important data found is that simplification of the calculation realized in the analysis of the pillars through the continuous beams model does not express results of efforts that are critical to ensure the structural integrity of the building.