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混凝土结构(包括水工混凝土结构)在运行过程中有可能承受高速施加的动荷载.这时,不但需要计及结构自身的惯性,而且应当研究在动荷载下混凝土的材料性能. 关于混凝土在动态情况下的抗拉、抗压强度及拉压极限应变等力学性能,国内外鹭进行过不少试验研究,但关于动荷载下混凝土的断裂性能则未见报导.本试验的目的是一探求混凝土的动态断裂特性及动态疲劳断裂特性.
Concrete structures (including hydraulic concrete structures) may be subjected to high-speed dynamic loads during operation. In this case, not only the inertia of the structure itself, but also the material properties of the concrete under dynamic load should be studied. In the case of mechanical properties such as tensile strength, compressive strength, and ultimate compressive strain, domestic and foreign herons have conducted a number of experimental studies, but there has been no report on the fracture performance of concrete under dynamic load. The purpose of this test is to explore concrete. Dynamic fracture characteristics and dynamic fatigue fracture characteristics.