Moment-curvature damage bridge piers subjected horizontal loads

Sergio Oller, Alex H. Barbat

Abstract


The evaluation of the damage caused by horizontal loads, such as seismic action, to existing bridges has received an important attention in recent years, because it is the first step towards reducing casualties and economic losses. In damage detection and evaluation, the application of simple and reliable models has been prioritized, because they are necessary in further multi-analyses required by Monte Carlo simulations. A simplified moment-curvature damage model, capable of evaluating the expected seismic behaviour of RC highway bridges is proposed in this paper. The damage evaluation model is based on the mechanical modification of the cross sectional inertia of the bridge piers. The model was validated using experimental results obtained at the JRC Ispra for the Warth Bridge of Austria and also FEM analyses performed by other authors for the same bridge.

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ISSN 1582-3024 Article no.1, Intersections/IntersecÅ£ii, Vol.2, 2005, No.2, “Structural Engineeringâ€

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