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http://dx.doi.org/10.11112/jksmi.2014.18.3.076

Capacity Evaluation of High Strength SFRC Beams according to Shear Span to Depth Ratio  

Lee, Hyun-Ho (동양대학교 건축소방행정학과)
Publication Information
Journal of the Korea institute for structural maintenance and inspection / v.18, no.3, 2014 , pp. 76-83 More about this Journal
Abstract
The purpose of this study is to evaluate the shear strengthening effect of steel fiber in high strength SFRC beams. For this purpose, 13th specimens are prepared and structural tests are performed. Testing variables are shear span to depth ratio, steel fiber volume fraction, shear strengthening ratio in 60 MPa SFRC concrete. From the reviewing of previous researches and analyzing of material and member test results, shear span to depth ratio 2.5 and steel fiber volume fraction 1.0% can be having a maximum strengthening effect in steel fiber. Proposed shear strength estimation equation, which is considering steel fiber strengthening and shear span to depth ratio effect, underestimate the shear capacity of high strength SFRC beams. Therefore a detailed research on strength characteristics of high strength SFRC beams are needed.
Keywords
Steel fiber; Shear span to depth ratio; High strength; Shear reinforcement ratio; Volume fraction;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Lee, H. H. (2004), Evaluation of Shear Strength in SFRC Beam without Stirrups Considering Steel Fiber Strengthening Factor, Journal of the Korea Institute for Structural Maintenance Inspection, 8(2), 213-220 (in Korean).
2 Lee, H. H., and Hur, M. W. (2005), Shear Capacity Estimation of SFRC Members Considering Steel Fiber Strengthening Factor and Shear Reinforcement, Journal of AIK, 24(5), 35-42 (in Korean).   과학기술학회마을
3 Priestley, M. J. N., and Park, R. (1987), Strength and Ductility of Concrete Bridge Columns under Seismic Loading, ACI Structural Journal, 84(1), pp.69-76.