模型试验表明，随着试验荷载等级的提高，各测点的应力呈线性增长，结构的受力处于线弹性阶段。

According to the test results, as the load levels increased, the stress of the measuring points increases linearly. The structure worked in elastic behavior.

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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.

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以重庆中心桥采用“释能法”新技术提高荷载等级为工程背景，对中心桥加固前后分别进行了荷载试验，并对试验结果进行了研究分析。

The study results have shown that the stress conditions of the bridge had been obviously improved after having been strengthened, with improvement of bearing capacity by a big margin.

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