TORSION IN REINFORCED NORMAL AND HIGH-STRENGTH CONCRETE BEAMS--PART 1: EXPERIMENTAL TEST SERIES

This work examines the behavior of reinforced normal concrete (NSC) and high-strength concrete (HSC) beams subjected to pure torsion. The test series consisted of 12 totally over-reinforced beams, with parameters that influence torsional capacity and concrete strength as the only variable. Therefore, the cross-sectional dimensions, and strength and dimensions of the reinforcement, were constant for all beams. The concrete strength varied between 36 and 110 MPa (5,220 and 15,959 psi). The test series illustrates the advantage in using HSC. In addition to a higher cracking load and higher ultimate torsional capacity, use of HSC for a given cross section and given torque results in higher torsional stiffness, lower crack width, and lower reinforcement stresses compared to NSC.

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  • English

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  • Accession Number: 00674141
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 16 1995 12:00AM