Moment-rotation model of steel-to-concrete end-plate connections

Publisher Summary This chapter introduces a prediction model for the moment-rotation behavior of endplate type steel-to-concrete connections under combined axial force and bending moment. The developed model predicts the global response of the connection from the local behavior of the “tension” and “compression” zones. Steel-to-concrete mixed connections are connecting steel, concrete, reinforced concrete and composite structural elements. End-plate type mixed connections are applied in steel beam-to-reinforced concrete or composite column joints and steel or composite column bases. The load-deformation relationships of the zones are analyzed by two nonlinear 2D FEM models. The calculated moment-rotation curves are presented and compared to the experimental results and to a simplified analytical method. It is concluded that the proposed method provides good prediction for the initial range of the moment-rotation relationship but underestimates the ultimate moment capacity.