EXPERIMENTS ON SHEAR BEHAVIOR OF PRESTRESSED CONCRETE BEAMS WITH DRAPED TENDONS:LONGITUDINAL REINFORCEMENT RATIO(A_s GROUP)

Meng Shaoping; Wang Guolin; Yuan Qin; Huang Shiping

doi:10.13204/j.gyjz200912002

Volume 39 Issue 12

Dec. 2014

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Meng Shaoping, Wang Guolin, Yuan Qin, Huang Shiping. EXPERIMENTS ON SHEAR BEHAVIOR OF PRESTRESSED CONCRETE BEAMS WITH DRAPED TENDONS:LONGITUDINAL REINFORCEMENT RATIO(A_s GROUP)[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(12): 5-9. doi: 10.13204/j.gyjz200912002

Citation:

Meng Shaoping, Wang Guolin, Yuan Qin, Huang Shiping. EXPERIMENTS ON SHEAR BEHAVIOR OF PRESTRESSED CONCRETE BEAMS WITH DRAPED TENDONS:LONGITUDINAL REINFORCEMENT RATIO(A_s GROUP)[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(12): 5-9. doi: 10.13204/j.gyjz200912002

Citation:

Meng Shaoping, Wang Guolin, Yuan Qin, Huang Shiping. EXPERIMENTS ON SHEAR BEHAVIOR OF PRESTRESSED CONCRETE BEAMS WITH DRAPED TENDONS:LONGITUDINAL REINFORCEMENT RATIO(A_s GROUP)[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(12): 5-9. doi: 10.13204/j.gyjz200912002

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EXPERIMENTS ON SHEAR BEHAVIOR OF PRESTRESSED CONCRETE BEAMS WITH DRAPED TENDONS:LONGITUDINAL REINFORCEMENT RATIO(A_s GROUP)

doi: 10.13204/j.gyjz200912002

1.
Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education,Southeast University,Nanjing 210096,China

Received Date: 2009-09-12
Publish Date: 2009-12-20

Abstract

Abstract

Three PC beams with draped tendons and one RC beam were tested and the primary variable is the longitudinal reinforcement ratio .All the beams had a shear span to depth ratio,a/h_0,of 1.8.Several results were obtained: beams with both small a/h_0 and normal amount of were inclined to suffer a flexural-shear failure;the lower the ,the faster the damage of beams;there seems to be a critical longitudinal reinforcement ratio,_(crit),that is,if is lower than it,the arch action would weaken,or else the arch action would be significant.Besides,sectional design methods and modified strut-and-tie model(MSTM) were used to predict the beam shear strengths,and comparisons with test results indicate that sectional methods are not suitable for such predictions but MSTM not only gives accurate results,but also well account for the effect of the longitudinal reinforcement.
- longitudinal reinforcement ratio,
- shear behavior,
- sectional design method,
- modified strut-and-tie model(MSTM)

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References(9)

References

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