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Publication
Blind Prediction of a Full-Scale RC Bridge Column Tested Under Dynamic Conditions
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| 1.05 MB | Adobe PDF |
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Abstract(s)
The definition of appropriate modelling approaches combined with a consistent
software framework is a topic of major importance in the present days for structural engineering
in general and, particularly, for earthquake engineering. The accuracy of the results
obtained in the recent “Concrete Column Blind Prediction Contest 2010” for a full-scale reinforced
concrete bridge column tested on the NEES Large High-Performance Outdoor Shake
Table, seems to indicate that current modelling strategies are on the right track. The 1.2 m
diameter cantilevered column spans 7.2 m from the footing. A massive 230 tonne reinforced
concrete block supported by the column generates the inertial forces to mobilize the column
capacity. Seismic performance was investigated under 6 ground motions, starting with lowintensity
shaking and bringing the column progressively to near-collapse conditions. Based
on the obtained results from the pre-contest simulation, as well with the post-contest analysis,
it was possible to extract some important conclusions regarding the application of several
strategies, namely the use of different type elements, element discretization, constitutive laws
for materials.
Description
Keywords
RC bridge column Blind Prediction Fiber Element Dynamic non-linear analysis Shaking Table