Análise estrutural e econômica de métodos construtivos semelhantes para edifícios executados em alvenaria estrutural

Abstract

Your decisions in civil construction are extremely important to obtain excellence in the final cost-benefit of a work. The objective of this work is to analyze and compare the results obtained in two similar methods of execution of a residential building with five floors, located in a plot of 367 m² in the neighborhood of Padre Eustáquio, city of Belo Horizonte, state of Minas Gerais. In the first method analyzed, there is the building in its entirety, executed in structural masonry, both its internal walls and external walls. In the second method, the building is developed partly in structural masonry, with its external walls in concrete blocks, and the rest, that is, the internal walls, opting for the manufacture of drywall partitions. In order to obtain the study results of this work, all the necessary calculations and analyzes were approved as required in the Brazilian norms applicable to the construction methods used in such a building, and will be demonstrated below. It could be observed that in the first case, where the construction is entirely carried out in incorporated concrete blocks, positive points such as simpler and compulsory slabs, dispensing with shoring, and concrete blocks and mortars for laying with relatively low resistance, caused in a more economical method. The negative points for this, however, can be marked by the impossibility of simulating any alteration in the internal rooms of the property, and also hindering the compatibility of complementary projects to the building. In the second case, having the development of structural masonry and drywall walls, we have as main favorable point, the possibility of complete modification of all the rooms present inside the apartment, and the facilitation of improvement of complementary projects. However, we have the onus, where the concrete blocks and mortar for integrated settlements present on the external walls, will have higher resistance, accompanied by thicker, more resistant slabs and with the need for shoring, and also divisions in drywall with higher cost compared to the settlement in independent blocks. However, it is concluded that both construction processes are effective, which will determine the choice, will be the analysis through factors related to the standard of training required for the location, being economic differentiated.