DEEP WEB REINFORCEMENT

The authors review recent publications and summarise the performance under load of deep beams with various types of web reinforcement. The experimental investigations into the effects of varying span-depth ratio, and shear span were confined to simply supported deep beams under two point loading applied to the top. Various configurations were tried to determine load deflections, size and distribution of cracks, modes of failure and ultimate loads. For all span-depth ratios studied inclined web reinforcement was most effective in the control of deflections and crack widths. The effectiveness of other types of web reinforcement depends on the span-depth ratio. For the very deep beams the primary cause of failure was diagonal cracking; crushing of concrete at the bearing blocks was usually a secondary fault. Vertical splitting occured above a support in the deeper beams, usually followed by crushing of the concrete near the bearing block. The properties of test beams are tabulated and various forms of web reinforcements illustrated. /TRRL/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00105317
• Corporate Authors:

  Cement and Concrete Association

  52 Grosvenor Gardens
  London SW1W 0AQ,   England 
• Authors:
  • Grant, G
  • Sokal, Y
• Publication Date: 1975-12

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 28-31
• Serial:
  • CONCRETE
  • Volume: 9 N
  • Issue Number: 12
  • Publisher: THE CONCRETE SOCIETY
  • ISSN: 0010-5317

Subject/Index Terms

• TRT Terms: Beams; Breaking loads; Bridge members; Cracking; Crushing; Deflection; Depth; Failure; Length; Load transfer; Loads; Material reinforcement; Reinforced concrete; Shear strength; Webbing
• Uncontrolled Terms: Bridge spans; Deep beams
• Old TRIS Terms: Shear span
• ITRD Terms: 3472: Beam; 5211: Cracking; 5586: Deflection; 6499: Depth; 5520: Failure; 5567: Load; 4794: Reinforced concrete; 3471: Reinforcement (in mater); 5531: Shear; 3452: Span
• Subject Areas: Bridges and other structures; Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00134214
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Sep 16 1976 12:00AM