METHOD TO INCREASE CAPACITY AND STIFFNESS OF REINFORCED CONCRETE BEAMS

Recent research into retrofitting existing concrete structures has led to many advances in the area of increasing the strength and stiffness of existing concrete members. Bonding steel and fiber reinforced plastic plates to the tension face of existing concrete members has evolved as a popular means with which to increase flexural strength and stiffness. These techniques often require substantial field preparation of the components and can result in significant construction cost. An alternative simple cost-effective method for increasing the flexural strength and serviceable stiffness of existing reinforced concrete members is presented. The proposed technique is based on fundamental principles of reinforced concrete design and involves the bolting of structural steel channels to the tension face of the existing concrete member. Validity of the method is established through experimental testing. Results indicate that the method provides an acceptable alternative to plate bonding to the tension soffit of existing concrete beams.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/10840680
• Corporate Authors:

  American Society of Civil Engineers

  1801 Alexander Bell Drive
  Reston, VA  United States  20191-4400
• Authors:
  • Foley, C M
  • Buckhouse, E R
• Publication Date: 1999-2

Language

• English

Media Info

• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: p. 36-42
• Serial:
  • Practice Periodical on Structural Design and Construction
  • Volume: 4
  • Issue Number: 1
  • Publisher: American Society of Civil Engineers
  • ISSN: 1084-0680
  • Serial URL: http://ascelibrary.org/loi/ppscfx

Subject/Index Terms

• TRT Terms: Anchor bolts; Beams; Bolting; Concrete structures; Cost effectiveness; Fiber reinforced plastics; Flexural strength; Reinforced concrete; Retrofitting; Steel plates; Stiffness
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00760908
• Record Type: Publication
• Files: TRIS
• Created Date: Mar 10 1999 12:00AM