耦合分析混凝土结构缺陷的发展综述

应用断裂力学与损伤力学耦合分析方法分析混凝土破坏的问题是目前混凝土结构损伤研究的新趋势.以三点弯曲混凝土梁为例，阐明如何运用断裂损伤力学耦合分析方法初步确定结构缺陷区域，然后用断裂损伤理论及有限元方法模拟结构破坏过程.通过三点弯曲混凝土梁损伤分析以及对不同损伤本构模型方程的建立及分歧讨论，揭示混凝土损伤本构的发展方向和前景.可视化程序的引入对混凝土损伤本构关系的研究既是挑战也是机遇，损伤本构模型的建立最终目的是要服务于实际生产.

Review of the development of coupling analysis of concrete structure

It is the new tendency in the study of concrete structure damage for the coupling analysis of fracture mechanics and damage mechanics to be applied to analyze the problem of concrete damage. Taking the three-point bending concrete beam as an example, how to use the coupling analysis of fracture mechanics and damage mechanics to determine the initial damage zone was illustrated, then the fracture damage theory and numerical methods were used to simulate the process of structure damage. Through the damage analysis of the three-point bending concrete beam, the illustration was obtained, and the establishment and discussion of the different damage structure mode equation, the development direction and prosperity of the concrete damage structure were explained. The introduction of visible process is the challenge and opportunity to the study of the concrete damage structure relationship, and final purpose of the establishment of the damage structure model is to serve for the actual production.