Inelastic Behavior and Ductility Capacity of Reinforced Concrete Bridge Piers under Earthquake. I: Theory and Formulation

Seismic Performance Assessment of Hollow Reinforced Concrete and Prestressed Concrete Bridge Columns

“…The proposed method uses a nonlinear finite element analysis program RCAHEST (Reinforced Concrete Analysis in Higher Evaluation System Technology) developed by the authors (Kim et al 2003;Kim et al 2007;Kim et al 2008;Kim et al 2009;Kim et al 2010). To assess the ability of the RCAHEST program to predict the seismic performance of hollow reinforced concrete and prestressed concrete bridge columns, computed results using the program were compared with the test results.…”

“…The model was created and analyzed using general-purpose finite element software, RCAHEST (Kim et al 2003;Kim et al 2007;Kim et al 2008;Kim et al 2009;Kim et al 2010). RCAHEST is a nonlinear finite element analysis program used for analyzing reinforced concrete structures (see Fig.…”

“…The elements developed for the nonlinear finite element analyses of reinforced concrete bridge columns are a reinforced concrete plane stress element and an interface element (Kim et al 2003;Kim et al 2007;Kim et al 2008;Kim et al, 2009). Accompanying the present study, the authors attempted to implement a bonded tendon element and a modified joint element for the segmental joints with a shear resistance connecting structure (Kim et al 2010).…”

“…The post-yield constitutive law for the reinforcing bar in concrete considers the bond characteristics, and the model is a bilinear model, as shown in Fig. 3 (Kim et al 2003). Kato's model (1979) for the bare bar under the reversed cyclic loading and the assumption of a cosinusoidal stress distribution were used to derive the mechanical behavior of reinforcing bars in concrete under reversed cyclic loading.…”

“…Details of the nonlinear material models used have been provided by the authors in previous research (Kim et al 2003;Kim et al 2007;Kim et al 2008;Kim et al 2009;Kim et al 2010). …”