【摘 要】
：
The strict definition and logical description of the concept of structure stability and failure are presented. The criterion of structure stability is developed
【机 构】
：
State Key Laboratory of Hydroscience and Hydraulic Engineering
【基金项目】
：
the China National Funds for Distinguished Young Scientists;the Special Funds for Major State Basic Research Projects
论文部分内容阅读
The strict definition and logical description of the concept of structure stability and failure are presented. The criterion of structure stability is developed based on plastic complementary energy and its variation. It is presented that the principle of minimum plastic complementary energy is the combination of structure equilibrium, coordination condition of deformation and constitutive relationship. Based on the above arguments, the deformation reinforcement theory is developed.The structure global stability can be described by the relationship between the global degree of safety of structure and the plastic complementary energy. Correspondingly, the new idea is used in the evaluations of global stability, anchorage force of dam-toe, fracture of dam-heel and treatment of faults of high arch dams in China. The results show that the deformation reinforcement theory provides a tmiform and practical theoretical framework and a valuable solution for the analysis of global stability, dam-heel cracking, dam-toe anchorage and reinforcement of faults of high arch dams and their foundations.
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