Seismic Analysis Of A Cable Stayed Bridge In
Talavera De La Reina, Spain
Author(s)
S. Hernández, L. E. Romera, F. Pereira & A. Díaz
Abstract
A cable stayed bridge with a signature design destined to be an icon in the region
has been recently built in the city of Talavera de la Reina in central Spain.
Although Spain is a country with no significant seismic peril, the recent
earthquake that took place in the city of Lorca in the year 2011, with a Richter
magnitude value of 5.1, has promoted studies of several structures of social and
economical relevance. Therefore, a comprehensive analysis of seismic effects of
the mentioned cable stayed bridge has been performed.
The study carried out included seismic analysis in both the frequency and
time domain, considering several sources of nonlinearity as cable sag, cable
prestress distribution and large displacements. Nonlinear seismic time history
analyses were conducted considering artificial earthquakes in the three spatial
directions.
In addition to the dynamic analysis a computer video was produced showing
the expected deformation of the bridge for each of the natural modes of vibration
and the seismic event. The bridge model developed for the visualization is very
precise and contains many details, so the perception of the viewer of the
computer video will be very similar to what will be seen if a real earthquake
would happen in the bridge site.
Keywords: cable-stayed bridge, nonlinear dynamics, seismic analysis,
visualization tools.
Keywords
cable-stayed bridge, nonlinear dynamics, seismic analysis,
visualization tools
Related Book
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