Influencia de la mampostería artesanal en el período fundamental de sistemas duales.

Abstract

In the Ecuadorian construction industry, the use of block masonry for facades and internal divisions of buildings is common; however, the characteristics of these elements are not taken into account in the modeling of structural projects. In the present work, the influence of the presence of block masonry walls in dual structures was established by observing the general behavior of the buildings and their performance under seismic forces. The structures studied under this proposal are located in the city of Quito and consist of 7 and 14 stories with 2 basements each, which will be used for residences and commercial premises on the first floor. Based on the standards in force at the time of this project, such as Norma Ecuatoriana de Construcción NEC and ACI 318 2019, and starting from the architectural plans, the pre-dimensioning of the structural elements was performed, followed by the structural modeling and concluding with the structural plans. Using ETABS structural calculation software, the structures were subjected to three analysis methods: linear static, linear dynamic and nonlinear static (pushover). After performing the modeling in the conventional way (without taking into account the masonry walls), the same procedure was performed taking into account the diagonal strut method using the Pivot hysteretic model to simulate the presence of masonry in the structures. Finally, a comparison of results was made between the modeling that does not consider masonry and those that do, in order to provide the reader with the necessary basis for deciding whether it is convenient to include masonry in the structural modeling.