Suchart Limkatanyu and Agarat Samakrattakit

pp. 213 - 226

Abstract

This paper presents the formulation and application of the flexibility-based, reinforced concrete
frame model with bond-slip. The formulation starts from the derivation of the governing differential equations (strong form) of the problem and then the flexibility-based, reinforced concrete frame model with
bond-slip (weak form) is constructed to obtain the numerical solution of the problem. This numerical model
is derived based on the principle of stationary complementary potential energy. Tonti’s diagrams are employed to conveniently represent the governing equations for both strong and weak forms of the problem.
This numerical model can be applied to both monotonic and cyclic loadings. The reinforced concrete column
experimentally tested under cyclic loads is used to illustrate the model accuracy and to show the importance
of bond-slip inclusion.

Keywords

• finite elements
• bond-slip model
• nonlinear analysis
• flexibility-based formulation