CONFINED CONCRETE-FILLED TUBULAR COLUMNS
This paper presents a study to introduce and experimentally validate an innovative concrete filled steel tubular (CFT) column system, named as confined CFT or CCFT, for improved seismic design of steel and concrete composite structures. Based on fundamental mechanics, the concept is aimed at controlling the local buckling of the steel tube and confining the concrete in the potential plastic hinge regions of a CFT column. To achieve this, several efficient details of transverse confinement are proposed. In the first phase of the study, carbon-fiber-reinforced plastic as additional confinement of CCFT columns was examined through experimental testing. As demonstrated from the results of axial compression tests and seismic loading tests, the new type of CFT column system can provide excellent seismic performance. The complicated local buckling and confinement mechanisms were examined using a proposed simple analytical model.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/07339445
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Corporate Authors:
American Society of Civil Engineers
1801 Alexander Bell Drive
Reston, VA United States 20191-4400 -
Authors:
- Xiao, Y
- He, W
- Choi, K-K
- Publication Date: 2005-3
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: p. 488-497
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Serial:
- Journal of Structural Engineering
- Volume: 131
- Issue Number: 3
- Publisher: American Society of Civil Engineers
- ISSN: 0733-9445
- Serial URL: http://ascelibrary.org/loi/jsendh
Subject/Index Terms
- TRT Terms: Axial compression; Buckling; Carbon fibers; Columns; Composite structures; Confined concrete; Ductility; Earthquake resistant design; Fiber reinforced plastics; Load tests; Steel structures; Transverse reinforcement; Tubular structures
- Subject Areas: Bridges and other structures; Highways; Materials; I32: Concrete;
Filing Info
- Accession Number: 00987484
- Record Type: Publication
- Files: TRIS
- Created Date: Mar 17 2005 12:00AM