断裂力学在钢筋混凝土设计中的应用

Applicability of Fracture Mechanics to Reinforced Concrete Design

混凝土是非均质材材,内部存在裂缝,所以其断裂破坏过程是复杂的.试验研究表明断裂韧性K_(lc)可以反映有裂缝材材的断裂性能,并在一定程度上决定混凝土构件的断裂过程.笔者试图从这一观点出发,阐明钢筋混凝土构件的断裂和抗裂荷载计算一法.

Concrete is a material of heterogeneity with microcraekes in-side. Its fracture process is complicated. It is shown in many experiments that fracture toughness may reflect the fracture property of cracked material and the fracture process of concrete elements in a certain degree. The author of this article tries to explain the method of calculation of fracture and antifraeture load of reinforced concrete elements.