Concrete Strength Criterion

Based on design criterion and construction practice, the paper presented the method to treat beam - column node concrete with different strength grade in course of design and construction.

在设计规范与工程实践的基础上，着重论述了梁柱节点不同混凝土强度等级在设计和施工中的处理方法。

Shear strength and shear strain are the basic properties in mechanics of concrete. They also serve as important data for finite element and failure criterion research on concrete.

抗剪强度和剪切变形是砼的基本力学性能，又是强度理论研究和有限元分析的重要数据。

Although there are many experiments under multiaxial stress states, most of the results mainly concern to the strength and failure criterion of concrete.

虽然三轴试验较多，但是主要是针对三轴情况下混凝土的强度(破坏准则)，没有具体针对不同围压应力比下的应力—应变关系做出研究。