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Prediction of the Torsional Strength of Reinforced Concrete Beams Subjected to Pure Torsion

순수비틀림을 받는 철근콘크리트 보의 비틀림 강도 예측

  • 이정윤 (성균관대학교 건축공학과) ;
  • 박지선 (성균관대학교 건축공학과)
  • Published : 2002.12.01

Abstract

The current ACI design code does not take into account the contribution of concrete for the torsional moment of reinforced concrete(RC) beams subjected to pure torsion. This code is not capable of evaluating the inter-effects between concrete and torsional reinforcement on the torsional resistance of the RC beams. Some test results indicated that the current ACI code was not successful in predicting the observed torsional moment of the RC beams with reasonable accuracy. The research reported in this paper provides an evaluation equation to predict the torsional moment of the RC beams subjected to pure torsion. The proposed equation is derived from the equilibrium as well as compatibility equations of the truss model for the cracked RC beams. Comparisons between the observed and calculated torsional moments of the 66 tested beams, showed reasonable agreement.

References

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Cited by

  1. Characteristics of Structural Behavior of Steel Fiber Reinforced Ultra High Performance Concrete Beams Subjected to Torsion vol.26, pp.1, 2014, https://doi.org/10.4334/JKCI.2014.26.1.087