通过对钢筋混凝土梁进行不同荷载等级下静载和动载的交替实验，得到混凝土梁从完整到破坏的频率变化规律。
The alternate test of static load and dynamic load on RC beam serves the study of the frequency change disciplinarian from integrity to destroy of RC beam.
本文较为直观的显示了，混凝土梁在受到静荷载和不同加载速率的冲击荷载作用时，其力学性能及损伤破坏的特点，为研究混凝土梁的力学性能及损伤状况提供了新的途径。
The mechanical properties and the situation of damage and failure element of concrete in different kinds of load were displayed in this paper. And a new method on study concrete was proposed.
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