Distinction between Punching and Flexural Failure Modes of Flat Plates

It is often difficult to distinguish between flexural and punching shear failure modes in tests to study the effectiveness of shear reinforcement in providing strength and ductility in flat plates. Clear indicative results can only be obtained when the flexural reinforcement ratio is sufficiently high to exclude the possibility of flexural failure prior to punching. This study investigates the influence of the flexural reinforcement ratio on the mode of failure, strength, and ductility using experiments on interior slab-column connections transferring shear force or shear force combined with unbalanced moment. A yield line theory is proposed as an effective tool to predict the flexural failure load. The test results show that it is sufficient that the flexural failure load exceeds the punching failure load by 70%.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Authors:
  • Stein, Timm
  • Ghali, Amin
  • Dilger, Walter
• Publication Date: 2007-5

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 357-365
• Serial:
  • ACI Structural Journal
  • Volume: 104
  • Issue Number: 3
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Bending stress; Columns; Ductility; Failure; Flexural strength; Reinforced concrete; Shear properties; Shear reinforcement; Shear tests; Slabs; Structural connection; Structural plates; Yield line method
• Uncontrolled Terms: Flexural-shear failure; Punching shear failure
• Subject Areas: Bridges and other structures; Highways; I20: Design and Planning of Transport Infrastructure;

Filing Info

• Accession Number: 01051290
• Record Type: Publication
• Files: TRIS
• Created Date: Jun 14 2007 11:55AM