Investigation of Deep Beams with Various Load Configurations

This paper reports on a series of tests that investigate the application of strut-and-tie models (STM) to beams with uniform loads. The tests also examined the impact of load distribution and shear reinforcement on the behavior of the beams. Specimens were subjected to single or double concentrated loads or uniformly distributed loads. The nominal strengths of the specimens were determined using STM provisions of two U.S. codes and then compared with the measured strengths. The application of STM produced conservative values of strength. Test results indicate differences in behavior among specimens subjected to different load distributions. The differences were apparent in the cracking patterns, failure modes, ultimate strengths, and strain distributions within the beams. Those differences indicate that distributed loads are a much less severe loading type than concentrated loads. Two concentrated loads appeared to be sufficient to generate the same load-resisting mechanism present with a true uniform load, depending on the details of the member.

• Record URL:
  http://www.concrete.org/Publications/InternationalConcreteAbstractsPortal.aspx.aspx?m=details&i=18863
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Authors:
  • Brown, Michael D
  • Bayrak, Oguzhan
• Publication Date: 2007-9

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 611-620
• Serial:
  • ACI Structural Journal
  • Volume: 104
  • Issue Number: 5
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Beams; Building codes; Cracking; Failure; Load transfer; Loads; Reinforced concrete; Shear reinforcement; Strength of materials; Strut and tie method; Ultimate strength
• Uncontrolled Terms: Load configuration
• Subject Areas: Bridges and other structures; Design; Highways; Law; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01079544
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 22 2007 10:15AM