Análisis torsional en edificaciones irregulares en planta de 5 a 8 pisos incorporando muros estructurales de acero

Abstract

In the present work, the structural behaviour of irregular buildings of medium height is analysed, these structures due to their unconventional shape are vulnerable to a torsional seismic response, which is not a viable behaviour for buildings, to mitigate this response the use of structural walls is an optional method, but at present, the predominance of these structural walls are those made of reinforced concrete, because of this, this study is guided to provide as an alternative the use of structural steel walls, trying to justify and promote this system. For this purpose, the structural analysis will be complemented by the use of specialised structural software, in which the requirements of the current regulations for the city of Machala, El Oro, Ecuador will be applied; The Ecuadorian Construction Regulations (NEC-2015), in addition to American regulations such as the American Concrete Institute (ACI), American Institute of Steel Construction (AISC), American Society of Civil Engineers (ASCE) and Federal Emergency Management Agency (FEMA), which deal with concrete buildings, reinforced concrete and steel walls, in addition to the existing seismic evaluation and rehabilitation of structures. These standards were taken as axes, to obtain the minimum relations between the dimensions of the structural element "Walls", obtaining the minimum amounts, connection that should be present with the beams and columns, in addition to having the criterion to identify the points or parts of the structure that need this reinforcement. Finally, a comparative analysis is presented between the reinforced concrete bearing wall and the structural steel one, which allows evaluating the functionality of the latter and verifying whether or not it is viable to apply it