文末，仅通过混凝土立方体抗压强度，建立了不同强度等级混凝土的应力-应变曲线上升段本构关系，该模型结果与试验结果吻合很好。

At the end of the paper, a stress strain response model of different concrete grade has been built only using the compressive strength, and this model coincides well with the experiment results.

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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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介绍了高流态自密实砼的性能、配合比设计方法及其在中等强度等级预应力受弯拉砼构件中的应用试验及测试情况。

This paper introduced the characteristics of high dense fluid concrete, design of batching ratio, the experiment and test of bent concrete component in medium hardness prestress.

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