一、引言从本世纪起,人们逐渐认识到深入研究混凝土破坏机理及其强度理论的重要性和必要性,但是由于混凝土破坏现象十分复杂,影响破坏强度的因素又很多,所以至今尚未能建立一种统一的理论来说明混凝土的破坏过程。固体材料的破坏,就其本质而言是一 I. INTRODUCTION Since the beginning of this century, people have gradually realized the importance and necessity of an in-depth study of the concrete failure mechanism and its strength theory. However, due to the complexity of concrete destruction and many factors affecting the failure strength, it has not yet been established. A unified theory to explain the concrete destruction process. The destruction of solid materials is essentially a matter of