ELASTIC AND PLASTIC PREDICTIONS OF SLAB REINFORCEMENT REQUIREMENTS

A series of uniformly loaded elastic sandwich slabs with various shapes and boundary conditions is analysed using thin plate bending elements. The total reinforcement requirements of these slabs are then inferred using the moment volume integral, in many cases the moment volumes agreeing closely with those obtained by exact plastic optimum design techniques. A simple iterative redesign technique is then applied. Although relatively coarse meshes are used in some cases, the elastic finite element results closely match the exact plastic values in almost every case. A significant finding is that a widely used yield line analysis calculation appears inconsistent with the results from finite element analysis and the plastic optimum techniques. (A). (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08190259
• Corporate Authors:

  Institution of Engineers

  Science House, Gloucester and Essex Streets
  Sydney,   Australia 
• Authors:
  • Mohr, G A
• Publication Date: 1979

Media Info

• Features: Figures; References;
• Pagination: p. 16-20
• Serial:
  • Institution of Engineers (Australia) Civ Eng Trans
  • Volume: 21
  • Issue Number: 1
  • Publisher: Institution of Engineers
  • ISSN: 0819-0259

Subject/Index Terms

• TRT Terms: Design; Elasticity (Mechanics); Engineering moments; Finite element method; Forecasting; Material reinforcement; Optimization; Plasticity; Reinforced concrete; Reinforcing materials; Slabs; Volume
• Uncontrolled Terms: Design criteria
• Old TRIS Terms: Moments; Optimum design
• ITRD Terms: 6490: Finite element method; 4794: Reinforced concrete; 3471: Reinforcement (in mater); 3491: Slab
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00309639
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, TRIS
• Created Date: Oct 8 1980 12:00AM