Abstract
A one-dimensional model is proposed for static and dynamic analysis of box section steel bridge piers subjected to strong ground motions. The present formulation does not require experimental results nor shell analysis to obtain a constitutive equation of the model. The present analysis consists of two steps. The first step is to obtain the stress and strain relationship of the base plastic-hinge region, where local inelastic buckling is observed. The second step is to analyze static and dynamic responses of steel bridge piers by using fiber elements whose constitutive equation was obtained in the first step. The validity of the present model has been confirmed through comparisons with existing experimental results.
