Evaluación de la vulnerabilidad sísmica de un edifico de hormigón armado en Loja, mediante PUSHOVER, tiempo historia y metodología probabilística con modelamiento en PYTHON y MATLAB.

Abstract

In the following project, the fragility curves for a 5-slab structure are calculated, in order to evaluate the vulnerability to the different possible seismic scenarios. For this, national and international records are used, and to capture the response of the structure in each scenario, the dynamic nonlinear analysis method is applied time history, after having all the answers, damage thresholds will be established, which are calibrated displacements based on the lateral capacity of the structure, which allows differentiating four states of damage that are reached as the demand for displacement increases, called: mild, moderate, extensive and complete. To calculate the fragility curves, the multiple fringe methodology proposed by Baker will be used, being appropriate for the case when a wide variety of records is applied to a structure without following an IDA pattern of incremental dynamics, but is evaluated for the largest number of scenarios and this observed data or resulting from the nonlinear analyses is applied a correction called maximum verisimilitude. which helps predict the maximum probability that the structure has of reaching a certain state of damage. The conclusions obtained based on the interpretation of the results of the frailty curves are elaborated, in addition to indicating important criteria to understand that all these results are directly linear between good design and behavior, the more pathologies the design has, the more probability it is of achieving greater damage. Keywords: Pushover, time history, fragility, seismic vulnerability