A THEORETICAL INVESTIGATION OF THE BEHAVIOUR UP TO FAILURE OF REINFORCED CONCRETE MEMBERS SUBJECTED TO TENSION

INDAGINE TEORICA SUL COMPORTAMENTO FINO A ROTTURA DI SOLIDI IN CA SOGGETTI A TORSIONE

This paper refers to the behavior, up to the ultimate load, of reinforced concrete members subjected to pure torsion, using a modified space truss model. In fact the torsional behavior of r.c. Rectangular beams can be simulated with the classical space truss model only up to the yielding of the steel (longitudinal or hoop steel), while the experimental tests have shown that the torsional resistance rises even after this point, and that torsional rotation is, moreover, very large at the failure of the beam. With the space truss model studied in this paper, it is possible to get theoretical torque-twist curves which are very near to the experimental curves, and also to define, on the analogy of the flexural behavior, a "balanced reinforcement" and a "torsional ductility" for r.c. beams. The results obtained enabled the determination of undimensional curves which give very quickly and with good agreement, the torsional behavior of r.c. Rectangular beams according to their geometrical and mechanical characteristics. Some well-known results about the precracking behavior of reinforced concrete members in torsion, and some numerical applications close this work. (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/0017016X
• Corporate Authors:

  Ministero dei Lavori Pubblici Consiglio Superiore

  Via Nomentana 2
  Rome,   Italy 
• Authors:
  • Contaldo, M
  • Malangone, P
• Publication Date: 1980-1-2

Language

• Italian

Media Info

• Features: Figures; References;
• Pagination: p. 13-32
• Serial:
  • Giornale del Genio Civile
  • Volume: 118
  • Issue Number: 1-3
  • Publisher: Instituto Poligrafico e Zecca Dello Stato
  • ISSN: 0017-016X

Subject/Index Terms

• TRT Terms: Beams; Ductility; Failure; Loads; Reinforced concrete; Simulation; Strength of materials; Tension; Torsion; Trusses
• Uncontrolled Terms: Reinforced concrete beams
• ITRD Terms: 3472: Beam; 5520: Failure; 5567: Load; 4794: Reinforced concrete; 9103: Simulation; 5544: Strength (mater); 5512: Torsion
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00334103
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: Aug 15 1981 12:00AM