COLLAPSE BEHAVIOUR OF CONCRETE STRUCTURES WITH LIMITED DUCTILITY

A numerical method of analysis is developed for the study of the collapse behaviour of indeterminate concrete structures with limited ductility. The method is applied to indeterminate concrete beams in a numerical study of the minimum ductility requirements for structures designed by current code methods which allow redistribution of the elastic moments. Ductility limits are expressed in terms of a ductility factor F as well as the reinforcing index q and the factor ku, which defines the depth of the neutral axis in a section at ultimate moment. The fall- off in collapse load, which occurs when there is insufficient ductility to allow full plastic hinge action, is also studied. A simple expression for the loss in load capacity (as compared with the full plastic collapse load) is derived from the numerical results. (Author/TRRL)

• Corporate Authors:

  University of Adelaide

  Department of Civil and Environmental Engineering
  Adelaide, South Australia  Australia  5005
• Authors:
  • WARNER, R F
  • Yeo, M F
• Publication Date: 1984-1

Media Info

• Features: Figures; References; Tables;
• Pagination: 28 p.
• Serial:
  • Issue Number: R61

Subject/Index Terms

• TRT Terms: Beams; Bearing capacity; Behavior; Collapse; Concrete; Concrete structures; Continuous structures; Curvature; Deformation; Ductility; Engineering moments; Failure; Hinges; Loads; Mathematical analysis; Numerical analysis; Reinforced concrete; Structures; Torque
• Uncontrolled Terms: Concrete beams
• ITRD Terms: 6471: Analysis (math); 3472: Beam; 3085: Bearing capacity; 9001: Behaviour; 9006: Continuous; 5595: Deformation; 2870: Degree of curvature; 5909: Ductility; 3355: Engineering structure; 5520: Failure; 3462: Hinge; 5567: Load; 5410: Moment (force); 4794: Reinforced concrete
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00387183
• Record Type: Publication
• Source Agency: ARRB
• Report/Paper Numbers: Monograph
• Files: ITRD, TRIS, ATRI
• Created Date: Aug 30 1984 12:00AM