CONNECTION CAPACITY OF PRECAST CONCRETE SEGMENTAL UNITS AND GEOGRIDS: TESTING AND DESIGN CONSIDERATIONS

The use and acceptance of Segmental Retaining Walls (SRW) with geosynthetic reinforcement is rapidly increasing in North America. In addition to external and internal stability considerations, analysis of the facing stability is also required. As part of the facing stability analysis, the connection pullout strength of the geosynthetic reinforcement between courses of precast concrete blocks is determined in the laboratory and the results of the tests are applied to determine the Factor of Safety against connection failure at all geosynthetic locations in an SRW. The paper will review the design considerations at the connections for the various design methodologies as well as the performance criteria associated with these methodologies. The paper will also examine the connection capacity test method. A comparison of the results obtained from the different testing equipment will be made and the impact to the design will be pointed out. Connection failure will be addressed in terms of geosynthetic rupture and geosynthetic pullout. The information provided in this paper has been normalized and reflects the results of testing and PVC coated polyester geogrid in combination with precast concrete segmental block units.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0935803084
• Corporate Authors:

  Industrial Fabrics Association International

  345 Cedar Building, Suite 450
  St Paul, MN  United States  55101-1088
• Authors:
  • Bernardi, M
  • Fitzpatric, B
• Conference:
  • Geosynthetics '99: Specifying Geosynthetics and Developing Design Details
  • Location: Boston, Massachusetts, U.S.A.
  • Date: 1999-4-28 to 1999-4-30
• Publication Date: 1999

Language

• English

Media Info

• Features: Figures; References;
• Pagination: p. 1111-22

Subject/Index Terms

• TRT Terms: Concrete blocks; Design; Failure; Geogrids; Geosynthetics; Polyester resins; Polyvinyl chloride; Precast concrete; Reinforcement (Engineering); Retaining walls; Structural connection; Testing
• Uncontrolled Terms: Segmental units
• Subject Areas: Design; Geotechnology; Highways; Materials; I32: Concrete; I35: Miscellaneous Materials;

Filing Info

• Accession Number: 00795539
• Record Type: Publication
• ISBN: 0935803084
• Report/Paper Numbers: Volume 2
• Files: TRIS
• Created Date: Jul 24 2000 12:00AM