基于细观孔结构的混凝土损伤劣化特性分析

基于细观孔结构的混凝土损伤劣化特性分析 Analysis of Damage Deteriorating Character Based on Micro-Pore Structure of Concrete 罗晓辉 LUO Xiao-hui 1 2 first-author 徐育才 XU Yu-cai 1 2 罗昕 LUO Xin 1 2 华中科技大学土木工程与力学学院 华中科技大学土木工程与力学学院 School of Civil Engineering and Mechanics,Huazhong University of Science andTechnology School of Civil Engineering and Mechanics,Huazhong University of Science andTechnology 华中科技大学土木工程与力学学院,湖北,武汉,430074 华中科技大学土木工程与力学学院,湖北,武汉,430074 通过冻融循环试验,探讨了在不同损伤定义下,普通混凝土与高性能混凝土的宏观强度损伤与细观孔洞结构的相互关系和混凝土损伤劣化特性规律,进而得到了反映混凝土损伤劣化特性的重要结论. Damage change rule of macroscopic performances the difference between damage variable and damage ratio is shown.The relationship of macroscopic strength damage and microscopic pore structure for general concrete,high performance concrete and damage deterioration law are studied.So some major conclusions about the damage deterioration law are obtained. 混凝土损伤 损伤比 损伤变量 细观孔洞结构 damage of concrete damage ratio damage variable micro-pore structure TU528.01 国家自然科学基金资助项目（50278039）;上海市重点学科开放课题资助项目（20040226） 2005-01-01 2021-04-01 S2