Modelización de la Mampostería en el Comportamiento de un Edificio de Hormigón Armado

The current design of buildings is based on theoretical models that consider only the resistant structural elements. Building envelopes and partitions are considered as non-structural elements. However, in the presence of an earthquake, they provide stiffness by modifying the magnitude and distribution of forces. A more detailed analysis must consider the interaction of the masonry in order to consider the real behavior of the structure. The objective of this research was to synthetically develop a seismic resistant analysis of a reinforced concrete building using Cypecad software, by means of two theoretical models, the first one considering only the resistant elements, the other one with the interaction of the non-structural masonry with the building, using the mathematical model of Liauw & Kwan for the calculation of the properties of the equivalent diagonal (compression rod). From the results obtained, the shear at the soft floor level increases by an average of 21.5% according to the "X" and "Y" directions of analysis. The drift at the soft floor level increases by 5.25%, with respect to the building considered with only resisting elements. The fundamental period of vibration of the structure with the interaction of the uncracked masonry decreases by approximately 40% with respect to the value obtained in the building considered with only resisting elements.