Avaliação de procedimentos aproximados de distribuição das ações verticais em edifícios de alvenaria estrutural considerando a interação com a estrutura de concreto armado

Abstract

Structural analysis of structural masonry buildings requires the use of more realistic and less simplified structural models. This paper examines whether a structure composed of 04 floors slabs that support the structural walls and beams in discharging these (braces). The structure was analyzed in vertical shares. Insulated walls, insulated walls and groups of groups of walls with interaction: for sizing of stresses in structural walls 03 procedures for distribution of vertical loads were analyzed. Tenure of the acting on the 1st floor action efforts in the rafters (braces) through the actions from the procedure of insulated walls and insulated walls using a common computer program offices calculations groups were analyzed. Then a comparison is made between these efforts and found that depending on the way in which distributed the shares some beams are over-or under-sized. For a more realistic assessment of the structure, considering the effect arch and the openings of doors and windows, the same building was modeled using the finite element method using the SAP2000 program that allows analysis of a three-dimensional model composed of wall elements and beams. The elements were discretized in bars, beams and bark for the walls and loads placed on each floor. With efforts from analysis via finite elements, we compared, with the forces due to the approximate method of distribution of vertical loads, both the walls as the beams so as to evaluate the positive and negative characteristics of each procedure.