Profile of Seismic Behavior From Dynamic Parameters: Buildings Designed in Mexico City

Abstract eng:
This work presents and discusses the results of the application of criteria or methodologies used to establish an evaluation of the structural health and seismic performance of an important group of existing buildings in Mexico City representing the various types of constructions. It starts from the concept called "Bio-seismic profile of buildings", developed by the Chilean engineers Tomás Guendelman, Mario Guendelman and Jorge Lindenberg. The methodology applied, characterizes the buildings by 13 seismic performance indicators which consider the type of structure, mechanical properties of the elements, parameters that govern the dynamic behavior of structures and the response obtained by seismic actions among others. Based on buildings models results and in the behavior experienced by the existing constructions during recent earthquakes, modifications to the proposed methodology are made to define the limits of the dynamic parameters inherent to the philosophy of seismic design in Mexico, that it considers a ductile behavior of structures. This work has detailed information of dynamic analyses made to the buildings studied. The results of the application of the methodology of health and structural behavior are congruent with the good response observed in the buildings, in spite of having been designed with earlier regulations which derived later from the earthquake on September 19th, 1985 in Mexico City. It is suggested to extend the application of this methodology to evaluate another type of buildings under the base of steel and masonry structures. Finally, the results of the application of this methodology are compared and discussed with the evidence of damage caused by intense earthquakes and/or the real response experienced before events of such nature.

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