PRESTRESSED BEAMS IN TORSION, BENDING, AND SHEAR

Test results of 32 rectangular concrete beams with and without eccentricity under various combinations of torsion, bending, and shear are reported. The general behavior, torsional and flexural stiffness, and ductility of the beams are examined. The ultimate strength and interactions between torque-moment and torque-shear are presented in non-dimensional form. Circular and linear relationships are proposed, respectively, for torque-moment and torque-shear interactions. Compared with the test results of other investigators, it was noted that the presence of shear reduced the ultimate torsional capacity of the beams by 10 percent to 20 percent. Further, the torsional capacity was increased with decreasing shear span-depth ratio. The flexure and shear capacities of the beams were not affected in the presence of torsion up to 50 percent of the pure torsion capacity.

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  • Accession Number: 00263147
  • Record Type: Publication
  • Report/Paper Numbers: Paper 10560 Proceeding
  • Files: TRIS
  • Created Date: Nov 12 1974 12:00AM