Experimental Investigation on the Effect of Reinforcement Ratio to Capacity of RC Column to Resist Lateral Impact Loading

The influence of lateral impact loading rate, longitudinal reinforcement ratio and stirrup ratio on the failure mode, lateral load bearing capacity etc. was investigated. It was carried out with experimental research on the dynamic response of RC columns under lateral impact loading. Results show that increasing in longitudinal reinforcement ratio can enhance ultimate load bearing capacity of columns. The greater the loading rate, the greater the increased amplitude. It is also demonstrated that he main influence factor on the failure mode of RC columns is stirrup spacing. The column is prone to shear failure when the stirrup spacing is large otherwise to flexural failure.