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中文摘要：
针对混凝土大变形压缩奈件下的力学特性，设计了混凝土被动围压准一维应变压缩实验装置，研究了混凝土中骨料尺寸、添加剂以及抗压强度等对混凝土大变形特性的影响．从宏观的角度定性讨论了骨料粒径、强度等对混凝土大变形影响的原因．通过对实验数据回归分析，给出了大变形条件下C30混凝土的应力应变关系式。
英文摘要：
For study the mechanics character of concrete under large deformation compression, the principle of experiment was introduced, an experimental facility used for quasi-one dimensional strain state was designed. The factors including size of aggregate, fraction of slag, strength of concrete, which effect large deformation of concrete, were investigated by experiments. Based on the analysis of mass data of experiments, a phenomenological analysis was made to study the reasons of infcuence of the aggregate, slag and strength on large deformation character of concrete. A stress-strain relation of C30 concrete under large deformation was obtained through regression analysis of data of experiments.
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