An experimental study was performed to determine the dynamic structural response of high-strength reinforced concrete (RC) beams exposed to impacts of various energies. The residual load-bearing capacities of the impacted beams were measured by static loading tests after their dynamic impact responses had been assessed. Considering the shear behavior of the RC beams, their cross-sectional dimensions and length of were set as 250 mm × 400 mm and 2800 mm, respectively. Dropping masses of 240, 360, and 480 kg from a height of 3 m were used in the impact tests. The dynamic strength, acceleration, and deformation mode depending on the effect of the impact were investigated. After the impact tests, quasi-static bending tests of the impact-damaged beams were performed, and the results were compared with those of an undamaged reference RC beam. The residual strength, stiffness and the failure mechanism were selected as comparison criteria to evaluate the experimental results of the static tests. The dynamic test results depended on the applied impact energy and the damage intensity of the specimens. The residual strength and stiffness of the impact-damaged beams were lower than those of the reference specimen, particularly for the beam subjected to the largest impact. In addition, a significant reduction in energy dissipation capacity of the impact-damaged beams was observed during the static tests.

进行了一项实验研究，以确定暴露于各种能量冲击下的高强度钢筋混凝土（RC）梁的动力结构响应。在评估了梁的动态冲击响应后，通过静载荷测试测量了它们的残余承载能力。考虑到RC梁的剪切特性，其横截面尺寸和长度分别设置为250 mm×400 mm和2800 mm。在冲击测试中使用了从3 m的高度掉落的240、360和480 kg的重物。研究了取决于冲击作用的动态强度，加速度和变形模式。冲击试验后，对冲击破坏的梁进行准静态弯曲试验，并将其结果与未破坏的参考RC梁的结果进行比较。选择残余强度，刚度和破坏机理作为比较标准，以评估静态试验的实验结果。动态测试结果取决于施加的冲击能和样品的破坏强度。冲击损坏的梁的残余强度和刚度低于参考样品的残余强度和刚度，尤其是受到最大冲击的梁。此外，在静态测试过程中，观察到了损坏的梁的能量消散能力的显着降低。受冲击破坏的梁的残余强度和刚度低于参考试样的残余强度和刚度，尤其是受到最大冲击的梁。此外，在静态测试过程中，观察到了损坏的梁的能量消散能力的显着降低。冲击损坏的梁的残余强度和刚度低于参考样品的残余强度和刚度，尤其是受到最大冲击的梁。此外，在静态测试过程中，观察到了损坏的梁的能量消散能力的显着降低。