| Title |
Behavior of Steel Fiber Reinfored Concrete under Direct Tensile Loading |
| Authors |
윤흥수 ; 정환욱 ; 이상재 ; 김화중 ; 부척양 |
| Abstract |
The aims of this study were to investigate the tensile the tensile properties of steel fiber reinforced concrete(SFRC) under direct tensile loading, and to compare experimental resultes with reinforcement principles. Specimens with different fiber contents and lengths were investigated.The major conclusions of this study are as follows:1.The strength and toughness were improved, but the strain and elastic modulus didn't show a regular tendency as increasing of fiber contents and lengths. And the strength of SFRC showed a significant increase as compared with that of plain concrete.2.With the addition of steel fiber, Crack arrest capacity attained and Post-cracking resistance was increased.3.The effect of fiber reinforcement can be influenced by fiber contents, lengths, orientation and bond strenth between fiber and matrix.4.The tensile stregth of SFRC under direct tensile loading may not be explained theoritically by the concept of composite materials as well as fiber spacing concept, and the experiment must be enforced preferentially, therefore the accumulation of many data and analysis method on the reinforcement principles must be studied. |