A simple formula for calculating pure shear strength of concrete is derived on the basis of the verified mathematical model of concrete failure surface, the elliptic paraboloid.
本文根据已论证过的混凝土破坏面，即椭圆抛物面的数学模型，报导出一个用以计算混凝土纯剪强度的简单公式。
An elliptic paraboloid is proposed as the failure surface for concrete under multiaxial Stresses.
本文用椭圆抛物面作为混凝土三向应力时的强度破坏面。
The conventional supersonic detection of concrete is impossible to be accomplished due to the dynamic failure process which results in the deformation of tested surface.
但在荷载作用下混凝土的破坏是一个动态过程，由于测试面发生变形，使常规超声波测试无法完成。
This Surface can be used to describe and explain the mathematical and mechanical failure characteristics of Concrete behavior.
该曲面能较好地描述和解释混凝土的数学力学特性。
This Surface can be used to describe and explain the mathematical and mechanical failure characteristics of Concrete behavior.
该曲面能较好地描述和解释混凝土的数学力学特性。
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