Dynamic performance of prestressed concrete panel under impact loads: Review

The dynamic performance of prestressed concrete panel under impact loads is compressively studied in this paper. Firstly, the research status of reinforced concrete panel and prestressed concrete panel under high and low velocity impact conditions are introduced respectively, and the simplified calculation formulas to describe and predict the local failure mode of the panel are summarized. Secondly, an experimental database of impact tests of the prestressed concrete panel is compiled based on the existing tests, in which the data in the database is analyzed. Then, the influence of impactor mass, impact velocity, concrete compressive strength, reinforcement ratio of rebars, reinforcement ratio of prestress bars and prestress degree on the dynamic performance of prestressed concrete panel are explored based on the experimental database from three perspectives of plastic damage condition, penetration resistance and plastic energy dissipation capability. Finally, the accuracy and conservatism of the simplified calculation formulas for calculating the penetration depth and critical perforation thickness or critical perforation velocity of the prestressed concrete panel are analyzed. The results of the calculation of the formula indicate that these formulas are too conservative for prestressed concrete panel because the parameters such as prestress have not been considered. However, the Hughes and Chang are the currently most accurate formulas to calculate the penetration depth and critical perforation thickness of PS panel. Furthermore, the essential factors that should be addressed for future research have been explored.