Cyclic Behavior Of Steel Fiber Reinforced Concrete. From Material To Seismic Columns

The use of new types of structures subjected to dynamic loadings due to traffic, wind, waves and seismic action has noticeably increased over the years. Hence, the study of the cyclic behavior of reinforced concrete structures has become a subject of peculiar interest. Meanwhile, designers have to face new types of concrete such as Steel Fiber Reinforced Concrete (SFRC) in which fibers added to the concrete matrix have been demonstrated to be able to substitute partially, and in some cases totally, the traditional reinforcement, thanks to improved performance levels with regard to strength, crack control and ductility etc. This research work intends to be a further contribution to the knowledge on steel fiber reinforcement in combination with traditional one for its possible use in seismic resistant frames. Therefore, the study was developed by investigating the fatigue behavior of SFRC and the cyclic behavior of SFRC columns by means of both experimental tests and analytical models.