中文摘要：

本文根据大连理工大学开展的不同类型混凝土双轴压强度性能的试验资料，并结合其他研究者的研究资料，对混凝土在双轴压荷载作用下的破坏模式、双轴压强度进行了分析总结。同时从材料构成上对双轴压强度相对于单轴压强度提高的程度进行了分析，对各种混凝土的双轴压强度破坏准则进行了描述。希望本文内容为今后进一步开展混凝土多轴试验和有关设计规范考虑混凝土的多轴强度和非线性分析提供依据。

英文摘要：

According to the experiment on different concrete under biaxial compression done in the Dalian University of Technology in China and the test data done by other researchers, the failure mode and the strength of different concrete under biaxial compression are summarized and analyzed in this article. Meanwhile The difference of the increasing percentage of biaxial compressive strength over uniaxial compressive strength is discussed based on the structure of the materials, and failure criterion of various concrete under biaxial compression is discribed. It is hopecl that this can provide theoretical foundation for concrete multi-axis test and the design specification with the considerations of multi-axis strength and nonlinear analysis in the future.