EK679
For the general expression for interface shear, which includes the three load bearing mechanisms of adhesion, friction due to externally applied normal stress and reinforcement, the state of the horizontal […]
EK674
With sufficient concrete cover, a multi-axial stress state develops in the concrete surrounding the reinforcing bar at both sides of the cracked interface. After increasing interface displacement, the concrete plasticizes […]
EK673
The activation of dowel action in the reinforcement bar occurs due to relative horizontal displacement of old and new concrete layer. For dowel action, it can be distinguished between the […]
EK667
The main terms of interface shear resistance are adhesion, friction induced by normal stress (aggregate interlock) or by clamping of interface reinforcement. The mechanisms act at different displacement states and […]
EK28
The physical significance of the singular nature of the element stiffness matrix is found by reexamination that no displacement constraint whatever has been imposed on motion of the spring element; […]
EK27
Symmetry of the stiffness matrix is indicative of the fact that the body is linearly elastic and each displacement is related to the other by the same physical phenomenon.