Estimation of seismic damage for bridges of various vanes from Park and del ATC models - 6.2

Abstract

This work evaluates the damage that can be achieved by the bridges of a Colombian city like Bucaramanga, subjected to the seismic action. For this, a sample of the representative vehicule bridges of the city, several constructed in reinforced concrete. The bridges were modeled as three-dimensional structures, where the superstructure and infrastructure were idealized as a grating and a simple porch or column, assuming simple supports at the ends of the bridge. In the study of the dynamic response to the seismic action we used spectra representative of the study area, implemented computational tools such as SAP 2000 [1] in its analysis. In the damage estimation we used the Park and Ang model [2] [3] [4] [5], using the lDARC-2D program [6] for evaluation. Finally, for comparison, the methods proposed in ATC-6.2 [7] were used, establishing the appropriate differences.