| 要旨 |
This research investigates the reinforcing effects of stirrups on contribution of concrete in shear, focusing on arch action and beam action. Static bending tests were conducted on RC beams with various stirrup ratio and shear span. In this study, the contribution of arch action was estimated based on the strain of tensile steel bar at the support point. The results showed that while contributing directly, stirrups also improve the contribution of arch action, and maintain the contribution of concrete in beam action. In addition, the importance of regulation in stirrup spacing was also discussed. |