STRENGTH OF TIED HIGH-STRENGTH CONCRETE COLUMNS LOADED IN CONCENTRIC COMPRESSION
This research deals with the strength of reinforced concrete columns loaded in concentric compression, with particular emphasis on the issue of early spalling of the concrete cover. To investigate the behavior of tied reinforced concrete columns, a test program was established. Twelve columns were tested in three series under axial compression. The study shows that the longitudinal reinforcement is at yield at the spalling load, while the tie steel is not at yield at the point of cover spalling. After cover spalling, microcracking of the core leads to expansion of the core and activation of the confinement provided by the ties. The ultimate capacity of a concentrically loaded high-strength concrete column is the maximum of the spalling load and the capacity of the confined core. Design recommendations are given.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
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Supplemental Notes:
- This research was funded via an Australian Research Council Small Grant 1997 and an Australian Research Council Large Grant 1998.
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Corporate Authors:
American Concrete Institute (ACI)
38800 Country Club Drive
Farmington Hills, MI United States 48331 -
Authors:
- Liu, J
- FOSTER, S J
- Attard, M M
- Publication Date: 2000-1
Language
- English
Media Info
- Features: Figures; References; Tables;
- Pagination: p. 149-156
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Serial:
- ACI Structural Journal
- Volume: 97
- Issue Number: 1
- Publisher: American Concrete Institute (ACI)
- ISSN: 0889-3241
- Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP
Subject/Index Terms
- TRT Terms: Axial compression; Columns; Compressive strength; Deformation curve; Design; High strength concrete; Longitudinal reinforcement; Microcracking; Modulus of elasticity; Recommendations; Reinforced concrete; Spalling; Tests; Tied concrete; Ultimate strength; Yield strength
- Subject Areas: Bridges and other structures; Design; Highways; Research; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00789058
- Record Type: Publication
- Contract Numbers: CMS-9640570
- Files: TRIS
- Created Date: Mar 29 2000 12:00AM