Title :
Numerical Experiment on Flexural Properties of Steel Fiber Reinforced Concrete Beam
Author :
Fu, C.Q. ; Jin, X.Y. ; Jin, N.G.
Author_Institution :
Coll. of Civil Eng. & Archit., Zhejiang Univ., Hangzhou, China
fDate :
March 31 2009-April 2 2009
Abstract :
Based on the laboratory experiment of steel fiber reinforced concrete (SFRC), a total of 10 specimens have been designed according to the aggregate interface condition, steel fiber ratios and different-strength concrete. These specimens were computed by MFPA2D in micro-structure level. Comparing the result of SFRC with plain concrete beams, this paper validated the positive effect of steel fiber in crack-resistant and the flexural strength improvement of SFRC beam, analyzed the sensitivity of steel fiber to concrete with different strength, and provided the stress field and elastic modulus images. The numerical results gave the whole failure process of crack initiation, propagation, and interpenetrated. These results provide useful information toward understanding the flexural behavior of SFRC and have great significance to comprehend the flexural failure process of SFRC beam.
Keywords :
aggregates (materials); beams (structures); bending strength; cracks; elastic moduli; failure (mechanical); fibre reinforced composites; reinforced concrete; steel; MFPA2D; aggregate interface condition; crack initiation; crack propagation; elastic modulus; failure process; flexural failure process; flexural properties; flexural strength; steel fiber reinforced concrete beam; stress field; Aggregates; Building materials; Concrete; Laboratories; Load modeling; Mechanical factors; Optical fiber testing; Steel; Structural beams; Tensile stress;
Conference_Titel :
Computer Science and Information Engineering, 2009 WRI World Congress on
Conference_Location :
Los Angeles, CA
Print_ISBN :
978-0-7695-3507-4
DOI :
10.1109/CSIE.2009.119
