粗短钢纤维混凝土动力性能研究  

Study on the Dynamic Properties of Coarse-Short Steel Fiber Reinforced Concrete

作　　者：罗章[1] 

机构地区：[1]湖南工程学院建筑工程学院,湖南湘潭市411004

出　　处：《矿业研究与开发》2010年第5期23-25,109,共4页Mining Research and Development

摘　　要：钢纤维混凝土(SFRC)的静力性能已被广泛研究,但有关动力性能方面的文献仍较少。SFRC的动力性能受钢纤维的特性(几何形状与强度)、钢纤维的掺量、分布以及基体混凝土性能的影响。为方便研究,借助于一个简化的细长杆模型,导出了粗短钢纤维变形运动时的基本微分方程。重点研究了动载作用下,大体积粗短钢纤维混凝土结构内部的应力分布。Extensive research has been done on the static properties of steel fiber reinforced concrete（SFRC）,but less on its dynamic properties.The dynamic properties of SFRC are influenced by the properties（geometry and strength） of steel fiber,the fiber contents,the fiber distribution,the performance of the matrix concrete.For the study＇s convenience,by use of a simplified model of fine-long-pole,the basic differential equations for the deformation/movement of coarse-short steel fiber are derived.The emphasis is given on study of the intestinal stress distribution of mass coarse-short steel fiber reinforced concrete structure under dynamic loading.

关 键 词：粗短钢纤维混凝土 应力分析 动力性能 

分 类 号：TD350[矿业工程—矿井建设]