SEISMIC BEHAVIOR OF SEMI RIGID CONNECTIONS USING DISSIPATIVE POST-INSTALLED ANCHORS

The need for retrofitting old or damaged buildings after seismic events has brought to light the importance of post-installed connections. These connections are used to link existing structures to new seismic-resisting structural members. The connection can also be applied in modern modular structures consisting of concrete core wall and perimeter steel frames. However, the seismic role of post-installed connections in energy dissipation is not yet fully understood. This paper aims to investigate the seismic behavior of post-installed connections when they are allowed to yield in Design-Based Earthquake. To evaluate the seismic performance of the connection through nonlinear static analysis, a two-dimensional model consisting of a couple of steel frames and a concrete shear wall that are connected with post-installed anchors is developed in the OpenSees software framework.