A METHOD FOR DETERMINING THE SPACING AND WIDTH OF CRACKS IN PARTIALLY PRESTRESSED CONCRETE BEAMS

The paper presents the results of an investigation undertaken to study the behaviour of flexural cracking of partially prestressed concrete beams of I section. A method is proposed for determining the average spacing of cracks that form at different stages of loading in a reinforced concrete flexural member. Using the crack spacing so obtained, an upper bound to the maximum crack width is computed. The proposed method is used to determine the crack spacings and maximum crack widths that occur at the levels of prestressed steel, non-tensioned steel or soffit, or at any other level on the side of a partially prestressed concrete beam at different stages of loading. These computed values are compared with the results of nine prestressed concrete I beams tested in the investigation. (A) /TRRL/

• Corporate Authors:

  Institution of Civil Engineers

  One Great George Street, Westminster
  London,   United Kingdom  SW1P 3AA
• Authors:
  • DESAYI, P
• Conference:
  • Institution of Civil Engineers, Proceedings
• Publication Date: 1975-9

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 411-428
• Serial:
  • Volume: 59
  • Issue Number: 2

Subject/Index Terms

• TRT Terms: Beams; Cracking; Deflection; Deformation; Flexure; Forecasting; Fracture mechanics; Information processing; Loads; Mathematical models; Measurement; Prestressed concrete; Prestressing; Spacing; Steel; Tests; Ultimate load design; Width
• Uncontrolled Terms: Loading
• Old TRIS Terms: Computing; Limits
• ITRD Terms: 3472: Beam; 5211: Cracking; 5586: Deflection; 5595: Deformation; 132: Forecast; 5567: Load; 6473: Mathematical model; 6136: Measurement; 4796: Prestressed concrete; 6255: Test; 6479: Width
• Subject Areas: Bridges and other structures; Highways; Materials; Planning and Forecasting; I32: Concrete; I72: Traffic and Transport Planning;

Filing Info

• Accession Number: 00129995
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Files: ITRD, TRIS
• Created Date: Apr 7 1976 12:00AM