STUDY ON SHEAR PERFORMANCE OF ULTRA-HIGH PERFORMANCE CONCRETE BEAMS WITH STEEL BAR AND HYBRID STEEL FIBER

Diao Bo; Feng Yun; Ye Yinghua; Yang Songlin

doi:10.13204/j.gyjz201211002

Volume 42 Issue 11

Dec. 2014

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Diao Bo, Feng Yun, Ye Yinghua, Yang Songlin. STUDY ON SHEAR PERFORMANCE OF ULTRA-HIGH PERFORMANCE CONCRETE BEAMS WITH STEEL BAR AND HYBRID STEEL FIBER[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(11): 6-10,15. doi: 10.13204/j.gyjz201211002

Citation:

Diao Bo, Feng Yun, Ye Yinghua, Yang Songlin. STUDY ON SHEAR PERFORMANCE OF ULTRA-HIGH PERFORMANCE CONCRETE BEAMS WITH STEEL BAR AND HYBRID STEEL FIBER[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(11): 6-10,15. doi: 10.13204/j.gyjz201211002

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STUDY ON SHEAR PERFORMANCE OF ULTRA-HIGH PERFORMANCE CONCRETE BEAMS WITH STEEL BAR AND HYBRID STEEL FIBER

doi: 10.13204/j.gyjz201211002

1.
1. Department of Civil Engineering,Beihang University,Bejing 100191,China;
2.
2. First Bureau of Real Estate Development Co.Ltd,China Construction Group,Beijing 100161,China;
3.
3. China Architecture Design &Research Institute,Beijing 100044,China

Rev Recd Date: 2011-10-12
Publish Date: 2012-11-20

Abstract

Abstract

Self-compacting ultra-high performance steel fiber reinforced concrete has the advantages in high strength,high toughness,high fluidity and durability.However,its tensile strength is still far below the compressive strength.In this experiment,superfine fiber and end-bend fiber with steel fiber volume ratio of 2% are mixed at a proportion of 3:1 in the concrete with a matrix strength higher than C100,to be applied into the ultrahigh performance fiber concrete beam of 550 MPa tensile reinforcement.Six beams with shear span ratio of 2.5 and 3 are studied in this experiment through the method of static loading tests.The results show that at compare with beams without fiber,the imitial crack load of ultra-high performance reinforced concrete beams with steel bar and hybrid steel fiber is increased by 25%～180%,the load of 0.2mm crack width is increased 73%～18%,the ultimate load is increased by 68%～317%,the ductility is increased by 3.2～4.4 times.
- ultra-high performance fiber reinforced concrete beam,
- static test,
- oblique cross-section under shear,
- shear span ratio,
- hybrid-fiber,
- self-compacting concrete

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References(12)

References

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