PREDICTION OF HYSTERESIS OF REINFORCED CONCRETE MEMBERS

The endochronic theory for inelasticity and failure, previously established, is used to predict the response of reinforced concrete beams in cyclic bending at large strains. Cross sections are assumed to remain plain and are subdivided in slices. Existing bending theories must be enhances by inclusion of transverse normal strain as a third variable, in addition to curvature and transverse shear angle. The forces in stirrups bring concrete under confining hydrostatic pressure, and, according to endochronic theory, this greatly increases ductility and strength and suppresses strain-softening. The theory is applicable to any history of bending moment, shear force, and axial force, and allows the necessary cross-sectional area of stirrups to be calculated. It is most remarkable that a number of test data have been correctly predicted without having to adjust any of the material parameters determined previously from tests of plain concrete. The endochronic theory represents not merely a descrptive model, but a prediction method.

• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Bazant, Z D
  • Bhat, P D
• Publication Date: 1977-1

Media Info

• Features: Appendices; Figures; References;
• Pagination: p. 153-167
• Serial:
  • Journal of the Structural Division
  • Volume: 103
  • Issue Number: ST1
  • Publisher: American Society of Civil Engineers

Subject/Index Terms

• TRT Terms: Beams; Concrete; Cross sections; Ductility; Hydrostatic pressure; Hysteresis; Inelastic stress; Location; Position fixing; Reinforced concrete; Stirrups; Strain (Mechanics)
• Uncontrolled Terms: Concrete beams; Inelastic action
• Old TRIS Terms: Strains
• Subject Areas: Bridges and other structures; Highways;

Filing Info

• Accession Number: 00148373
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 15 1977 12:00AM