A review of the AS 1480-1974 span to effective depth ratios for control of deflections in reinforced concrete members

The AS 1480-1974 requirements for the use of span: depth ratios for controlling deflections in reinforced concrete members are reviewed in the light of recent criticism. It is shown that the basis of the span : depth ratios is sound but the limits of deflection implicit in the span : depth ratios are not the same as the permissible limits of deflection recommended by the code. A simple modification is proposed so that members designed using the span : depth ratios are unlikely to have deflections which exceed the prescribed deflection limits. (A)

• Authors:
  • Frodin, J G
• Publication Date: 1978

Language

• English

Media Info

• Pagination: 54-9
• Serial:
  • Volume: CE20
  • Issue Number: 1

Subject/Index Terms

• TRT Terms: Beams; Concrete; Creep; Deflection; Depth; Durability; Long span bridges; Reinforced concrete; Shrinkage; Standards
• ATRI Terms: Australian standard; Beam; Concrete; Creep; Deflection; Depth; Durability; Reinforced concrete; Shrinkage; Span
• Subject Areas: Bridges and other structures; Data and Information Technology; Materials;

Filing Info

• Accession Number: 01439873
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 24 2012 10:42PM