Strain-Based Shear Strength Model for Slender Beams without Web Reinforcement

In this paper, a theoretical model is developed that addresses the effect of flexural deformation on a beam. The model is used to predict the shear strength of slender reinforced concrete beams without shear reinforcement. The shear force applied to a cross section of the beam was assumed to be resisted primarily by the compression zone of intact concrete rather than by the tension zone. The shear capacity of the cross section was defined based on the material failure criteria of concrete: failure controlled by compression and failure controlled by tension. Interaction with the normal stresses developed by the flexural moment in the cross section was considered in the evaluation of the shear capacity. The shear capacity of the beam was defined as a function of the flexural deformation because the magnitude and distribution of the normal stresses vary due to the flexural deformation of the beam. The shear strength of the beam and the location of the critical section were determined at the intersection between the shear capacity and the shear demand curves. Results from this model were compared to previous test results on simply supported beams to verify the proposed model.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Authors:
  • Park, Hong-Gun
  • Choi, Kyoung-Kyu
  • Wight, James K
• Publication Date: 2006-11

Language

• English

Media Info

• Media Type: Print
• Features: Appendices; Figures; Tables;
• Pagination: pp 783-793
• Serial:
  • ACI Structural Journal
  • Volume: 103
  • Issue Number: 6
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Beams; Bending moments; Compression; Concrete; Deformation curve; Failure; Flexural strength; Mathematical models; Mechanical strain; Shear properties; Shear strength; Shear tests; Stresses; Structural analysis; Tension; Theoretical studies
• Subject Areas: Bridges and other structures; Highways; Materials; I20: Design and Planning of Transport Infrastructure; I32: Concrete;

Filing Info

• Accession Number: 01041186
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 30 2007 1:27PM