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Determination of inclination of strut and shear strength using variable angle truss model for shear-critical RC beams

  • Li, Bing (School of Civil and Environment Engineering, Nanyang Technological University) ;
  • Tran, Cao Thanh Ngoc (Department of Civil Engineering, International University, Vietnam National University)
  • 투고 : 2010.09.07
  • 심사 : 2012.01.28
  • 발행 : 2012.02.25

초록

This paper attempts to determine the inclination of the compression strut within variable angle truss models for RC beams loaded in shear-flexure through a proposed semi-analytical approach. A truss unit is used to analyze a reinforced concrete beam, by the principle of virtual work under the truss analogy. The inclination of the compression strut is then theoretically derived. The concrete contribution is addressed by utilizing the compatibility condition within each truss unit. Comparisons are made between the predicted and published experimental results of the seventy one RC beams with respect to the shear strength and the inclined angle of the compression strut at this state to investigate the adequacy of the proposed semi-analytical approach.

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참고문헌

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피인용 문헌

  1. Evaluation of Shear Strength Design Methodologies for Slender Shear-Critical RC Beams vol.139, pp.4, 2013, https://doi.org/10.1061/(ASCE)ST.1943-541X.0000634
  2. Simplified Shear Design of Slender Reinforced Concrete Beams with Stirrups vol.142, pp.2, 2016, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001394
  3. Displacement-Based Compatibility Strut-and-Tie Method and Application to Monotonic and Cyclic Loading vol.142, pp.6, 2016, https://doi.org/10.1061/(ASCE)ST.1943-541X.0001457
  4. Probabilistic Calibration for Shear Strength Models of Reinforced Concrete Columns vol.145, pp.5, 2019, https://doi.org/10.1061/(ASCE)ST.1943-541X.0002307
  5. A stress field approach for the shear capacity of RC beams with stirrups vol.73, pp.5, 2012, https://doi.org/10.12989/sem.2020.73.5.515
  6. Shear deformations based on variable angle truss model for concrete beams reinforced with FRP bars vol.79, pp.3, 2021, https://doi.org/10.12989/sem.2021.79.3.337
  7. Shear tests of GFRP-reinforced concrete beams strengthened in shear by textile reinforced concrete vol.34, pp.None, 2012, https://doi.org/10.1016/j.istruc.2021.10.045