STEEL-CONCRETE COMPOSITE COLUMNS

Structural steel shapes and tubes can be used with concrete to produce structural components. The performance of such composite systems is better than the sum of responses of the parts taken separately. In a concrete-filled steel tube caisson, for example, the steel casing resists flexural tension efficiently while confining the concrete core as the core resists axial compression, whereas it also stabilizes the steel casing. Concrete encasement of structural steel shapes can provide lateral stability to the steel shape, restraining local buckling as well as reducing the slenderness ratio below that of the steel shape alone. Concrete encasement serves as insulation for fire and shock loading. Characteristics of the structural behavior of composite columns are described as the basis for design recommendations. Strength design principles from Load and Resistance Factor Design of the American Institute of Steel and Construction and the American Concrete Institute are used in design. Shear transfer for the effective interaction of concrete and steel is considered, and requirements for transverse bar reinforcement of shear mechanisms are discussed. Design examples of strength estimates for two types of composite columns are included.

• Record URL:
  https://doi.org/10.3141/1594-06
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=STEEL-CONCRETE+COMPOSITE+COLUMNS&author=R.+Furlong&publication_year=1997
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309062020
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1594, Part 2: Structures.
• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Furlong, R W
• Publication Date: 1997

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 57-63
• Serial:
  • Transportation Research Record
  • Issue Number: 1594
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Columns; Composite structures; Concrete; Design; Shear stress; Strength of materials; Structural analysis; Structural mechanics; Structural steel; Transverse reinforcement
• Uncontrolled Terms: Shear transfer; Structural behavior
• Old TRIS Terms: Composite columns; Strength analysis
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00743571
• Record Type: Publication
• ISBN: 0309062020
• Files: TRIS, TRB, ATRI
• Created Date: Dec 4 1997 12:00AM