But bad construction control results in some low concrete grade of foundation piles and some broken piles.
在施工中，由于管理不善，造成部分基桩砼标号低于设计标号，并伴随有断桩等现象的工程质量事故。
Now the present code has got considerable changes in concrete grade of strength. In order to understand and put the present code into practice correctly, this paper has stated …
为了正确理解和执行现行规范，本文采用对比的方式叙述了这种变化，并导出了对工程非常有用的混凝土强度等级与原规范混凝土标号之间的换算关系。
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.
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。
应用推荐