结果表明，预制裂纹的倾角和岩桥倾角对裂纹的扩展和搭接有重要的影响。
It is concluded that the geometry of pre-existing cracks has great influence on the crack propagation and coalescence.
结果表明，随着预制裂纹偏离梁中线距离的增加，裂纹的起裂角和峰值荷载都增大。
The results showed that the crack initiation Angle and the peak load increased as the distance of the preexisting crack from the midpoint of the beam increased.
对预制裂纹的混凝土试件进行拉伸、压剪数值试验，得到混凝土拉伸断裂及压剪断裂破坏过程；
Tensile and pressure-shear numerical tests are carried on the concrete specimens with precast cracks, and the tensile fracture and shear fracture process are obtained.
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