从微细观角度探讨混凝土破坏的内在机理  

The Research on Interior Mechanism of Concrete Destruction from Microscopic View

作　　者：王婷[1] 张景德[1] 应发生 

机构地区：[1]南昌大学,江西南昌330029 [2]上高建筑设计院,江西上高336400

出　　处：《南昌工程学院学报》2001年第2期28-33,共6页Journal of Nanchang Institute of Technology

摘　　要：从混凝土内部结构特征出发 ,既注意到混凝土内部各局部单元微观变形不协调性的基本特性[1] ,又注意到混凝土内部基相结合面和原生微裂纹等随机分布的缺陷所导致的破坏呈有先有后局部化发生发展的微细观基本特性 ,全面深入探讨了受压和受压剪的条件下混凝土破坏发生和发展的内在机理 ,并通过实例分析了这种内在机理的客观性 .In this article, based on the structural property of concrete's in terior structure, in consideration of the basis property of inhomogeneity of microscopic deformation of concrete's interior each local unit as well as microscopic basic property of destruction, caused by some random flaws on binding faces of its interior structure and initial microscopic crevices, taking place and developing successively in each different local, the interior mechanism of concrete destruction from occurrence to development under compression stress as well as compression and shear stresses are thoroughly and deeply discussed. Combined with an experimental example, the objectivity of the interior mechanism is analyzed.

关 键 词：结合面 微观变形 原生微裂纹 内在机理 

分 类 号：TU375.103[建筑科学—结构工程]