SHEAR STRENGTH WITHIN REINFORCED CONCRETE BEAM-COLUMN JOINTS

This paper presents a new method which has been developed for predicting the shear strength of the column in a reinforced concrete beam-column joint. The authors' mathematical shear model is only summarised here, because it has been described elsewhere. Like most shear models, it assumes that the shear force is resisted by an inclined compression field or strut in the concrete. The proposed model is here extended to apply to beam-column joints, with or without links. A description is given of 12 tests of the proposed model, that have been conducted by the authors; allowance is also made for the results of 41 tests in two other series. In the authors' tests, the columns all had 300mm x 300mm section, and the beams were all 250mm wide by 500mm deep. The specimen seemed to fail in shear within the joint, whenever the theoretical flexural strength of the beam or column was not attained. Charts display the results of comparisons between the experimental loads at failure and the theoretical strengths of the specimens, assuming the joint details to be adequate. The results of the statistical analyses of the three series of tests show that the proposed model predicts the strength of the beam-column joints more reliably than the BS 8110 and EC2 standards.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/14665123
• Corporate Authors:

  Institution of Structural Engineers

  11 Upper Belgrave Street
  London,   United Kingdom  SW1X 8BH
• Authors:
  • PARKER, D E
  • BULLMAN, PJM
• Publication Date: 1997-2-18

Language

• English

Media Info

• Features: References;
• Pagination: p. 53-7
• Serial:
  • Structural Engineer
  • Volume: 75
  • Issue Number: 4
  • Publisher: Institution of Structural Engineers
  • ISSN: 1466-5123

Subject/Index Terms

• TRT Terms: Beams; Failure; Forecasting; Joints; Mathematical models; Methodology; Reinforced concrete; Shear strength; Strength of materials; Tests
• ITRD Terms: 3472: Beam; 5520: Failure; 132: Forecast; 2998: Joint (structural); 6473: Mathematical model; 9102: Method; 4794: Reinforced concrete; 5531: Shear; 5544: Strength (mater); 6255: Test
• Subject Areas: Bridges and other structures; Materials; Planning and Forecasting;

Filing Info

• Accession Number: 00738329
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jul 30 1997 12:00AM