Strut-and-Tie Models versus sectional Shear Design - A Discussion Contribution

The truss model is indispensable for designing beams with shear reinforcement and shear design should be based on this concept. Therefore beams should always contain a minimum amount of stirrups.The sectional shear design in B-regions of beams according to the empirically derived rules given in Ch. 11 of the American Concrete Institute (ACI) 318-08 unavoidably leads to discrepancies when separately designing the adjacent D-regions by using a strut-and-tie model according to Appendix A of ACI 318-08. Using the truss model for designing the whole beam, often called a “full member design” allows a consistent transition from B- to D-regions in beams and thus avoids the conflict between a sectional shear design. Furthermore two important D-regions in beams are dealt with, which are the D-region where a point load is applied near the support and the D-region where a beam is indirectly supported by another beam. A list of references is given for further guidance in application of strut-and-tie models.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9780870313929
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Reineck, Karl-Heinz
• Publication Date: 2010

Language

• English

Media Info

• Media Type: Print
• Features: Figures;
• Pagination: pp 15-1 - 15-18
• Monograph Title: Further Examples for the Design of Structural Concrete with Strut-and-Tie Models

Subject/Index Terms

• TRT Terms: Axle loads; Beams; Bridge design; Bridge members; Guidelines; Load tests; Shear strength; Strut and tie method; Trusses
• Subject Areas: Bridges and other structures; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01352818
• Record Type: Publication
• ISBN: 9780870313929
• Report/Paper Numbers: SP-273-15
• Files: TRIS
• Created Date: Sep 28 2011 12:25PM