The performance of precast concrete frame structures against seismic loads mainly depends on the beam-to-column connection. A ductile hybrid connection consists unbonded post-tensioning steel and bonded reinforcement bars, both which provide overall moment resistance to frame. Post-tensioning acts as a restoring force brings structure back its initial position upon unloading. Mild an energy dis...

The present study is concerned with the simultaneous optimization of the size of components and the arrangement of connections for performance-based seismic design of low-rise SPSWs. Design variables include the size of beams and columns, the thickness of the infill panels, the type of each beam-to-column connection and the type of each infill-to-boundary frame connection. The objective functio...

Abstract The seismic performance of precast portal frames typical the industrial and commercial sector could be generally improved by providing additional mechanical devices at beam-to-column joint. Such provide an degree fixity energy dissipation in a joint characterized dry hinged connection, adopted to speed-up construction phase. Another advantage placing is possibility act as fuse, concent...

Since the earthquakes in Northridge and Kobe in 1994 and 1995, respectively, many investigations have been carried out towards improving the strength and ductility of steel beam to column pre- and post-Northridge connections. In order to achieve these objectives, recent researches are mainly focused on three principles: reducing the beam section to improve the beam ductility, adding different k...

The traditional precast concrete column-to-column connections are widely used in the prefabricated frame structures China. However, many studies on joints have demonstrated their complex forms and poor construction efficiency. To overcome these shortcomings, a new type column–column connection with steel plate hoop bolts was designed proposed. In order to reveal seismic performance of this conn...