Research on reinforced concrete (RC) beam-column connections has significantly increased during the past few decades. Interest in this topic is related to the importance of beam-column connections in maintaining the integrity of the whole structure. The slotted RC beam-column connection was investigated as a promising low damage beam-column connection replacement for conventional design. A slotted RC beam consists of a conventional RC beam, modified with a narrow vertical slot adjacent to the face of the column that runs approximately threequarters of the beam depth. This study reviews the literature on the mechanics and design of slotted beams, illustrating the works of various researchers on developing and modifying this innovative system. Then, the research progress in the behavior of slotted RC beams is briefly described, in chronological order, to place each contribution in a wider context. Extremely promising structural performance was observed due to minimum beam elongation, non-tearing action, minimum cracks, high energy dissipation, and stable hysteresis response. At the end of the study, a list of the main gaps that need further investigation and recommendations to fill out these gaps are provided.

Enhancing the seismic performance of cable stayed bridges (CSBs) gained increasing attention over the past few decades. The aim of this paper is to investigate how single tuned mass damper (TMD) can enhance the performance of CSB by comparing the performance of the CSB before and after incorporating the TMD under different excitation records. Finite element analysis has been performed and verified in order to assess the optimum value of TMD mass ratio. Results shows that, the presence of TMD leads to a noticeable improvement in different responses. Also, for mass ratio values between 0.25% and 0.5%, the bridge shows best performance.