在一定条件下,混凝土掺入钢纤维,能提高其抗拉或抗弯能力。此外,把纤维从开裂的混凝土中拉出来需要做功,因而原来脆性的混凝土得以具有一定的延性。钢纤维增强混凝土的受拉或受弯破坏极限强度受纤维含量、纤维纵横比、纤维/混凝土握裹力以及纤维方向性的控制,可按照下式用钢纤维参数来表示: Under certain conditions, concrete incorporated into steel fibers can increase its tensile or flexural resistance. In addition, pulling the fiber out of the cracked concrete requires work, so that the original brittle concrete has a certain ductility. The ultimate strength of steel fiber-reinforced concrete subjected to tension or bending is controlled by the fiber content, fiber aspect ratio, fiber/concrete bond strength, and fiber orientation, and can be expressed in terms of steel fiber parameters as follows: