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Ingeniería sísmica

versión impresa ISSN 0185-092X

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VELARDE CRUZ, Fernando de Jesús; BOJORQUEZ MORA, Juan  y  BOJORQUEZ MORA, Edén. Structural reliability of reinforced concrete buildings and dual system. Ing. sísm [online]. 2022, n.107, pp.74-90.  Epub 29-Ago-2022. ISSN 0185-092X.  https://doi.org/10.18867/ris.107.626.

This paper compares the structural reliability of a reinforced concrete building for office use located in the soft soil of Mexico City, using two different structural systems. The first one is based on reinforced concrete moment resisting frames (conventional system) and the second one incorporates shear walls strategically located in the exterior frames (dual system). Complex structural models are used for both buildings, which are subjected to several seismic records of the soft soil in order to estimate and compare the reliability of both systems using demand hazard curves. It is important to say that a comparison of the results obtained from the design of the two structural systems in terms of other engineering demand parameters is also studied. The parameter used to estimate the structural reliability is the maximum inter-story drift, which is obtained through incremental dynamic analyses in order to compute seismic fragility curves. The estimation of structural reliability is assessed by means of probabilistic models by combining the fragility and seismic hazard curves. Finally, the results obtained show that the use of dual system can be a good design alternative, providing a more economical solution and a better seismic behavior.

Palabras llave : reinforced concrete buildings; shear walls; dual system; structural reliability.

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