堤防岸坡RC板件的抗冲击性能研究

Study on impact resistance of RC plate on dike bank slope

为进一步明确多次冲击中堤防岸坡RC板件的抗冲击性,文中采用摆锤、落锤试验分析其多次冲击下的时程变化规律、整体变形及凹陷变形变化情况,进而分析其损伤变化及吸能特征。结果显示,冲击角度是影响堤防岸坡RC板件整体变形及凹陷变形的主因,斜向冲击是影响其安全性的主因,增加冲击力能够降低板件吸能能力,增强其破坏率。

In order to further clarify the impact resistance of RC plate of dike bank slope under multiple impacts,pendulum and drop weight tests are used to analyze the change of time history,overall deformation and sag deformation under multiple impacts,and then the characteristics of damage change and energy absorption are analyzed.The results show that the impact angle is the main factor affecting the overall deformation and depression deformation of RC plate on dike bank slope,and the oblique impact is the main factor affecting its safety.Increasing the impact force can reduce the energy absorption capacity of the panel and enhance the failure rate.