Abstract

AGUILAR, Gerardo; REINOSO, Eduardo  and  NINO, Mauro. Seismic behavior of “floor to floor” precast concrete facades. Ing. sísm [online]. 2018, n.98, pp.77-94. ISSN 0185-092X.  https://doi.org/10.18867/ris.98.491.

During recent earthquakes in Mexico, it has been observed that despite a proper behavior of the structure, there are failures and damage among non-structural elements. This paper presents analytical time-history analysis and results of the seismic behavior of “floor to floor” precast concrete facades. This analysis includes the evaluation of accelerations and displacements at the supports of the panels in a 15-story building. For the structural design, the 2004 Mexico City code has been used. An incremental dynamic analysis was carried out using the record of the 1985 earthquake at the site SCT. It has been observed that after reducing the seismic design forces by ductility and over strength, it may be possible to ignore that the actual forces are larger than the design forces, which may cause damage to the precast concrete facades.

Keywords : precast facades; seismic behavior; life losses; seismic risk.

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