Confining reinforcement for high strength concrete columns
A comprehensive parametric study of reinforced high-strength concrete (HSC) columns is undertaken to verify the current ACI 318 and NZS 3101 code provisions of confining reinforcement in the potential plastic hinge regions of HSC columns. A full range of parameters that have significan...
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2012
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| Online Access: | https://hdl.handle.net/10356/95045 http://hdl.handle.net/10220/8398 http://www.concrete.org/PUBS/JOURNALS/OLJDetails.asp?Home=SJ&ID=13091 |
| _version_ | 1811689104646078464 |
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| author | Li, Bing. Park, R. |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Li, Bing. Park, R. |
| author_sort | Li, Bing. |
| collection | NTU |
| description | A comprehensive parametric study of reinforced high-strength
concrete (HSC) columns is undertaken to verify the current ACI 318 and NZS 3101 code provisions of confining reinforcement in the potential plastic hinge regions of HSC columns. A full range of
parameters that have significant influences on the available
strength and curvature ductility factor in the potential plastic
hinges of the columns during cyclic flexure are examined. These
include the concrete compressive strength fc′ , the axial load level
Pe/fc′ Ag, the yield strength of transverse reinforcement fyh, the volume ratio of the transverse reinforcement, the area ratio of the longitudinal
reinforcement to the gross section area ρt, and the ratio of Ag/Ac. Previously derived stress-strain relationships for compressed HSC confined by various quantities, yield strengths, and arrangements of transverse reinforcement are used in cyclic moment-curvature analyses
of a range of reinforced HSC columns to derive design equations. The proposed design equations are able to determine the quantities of transverse reinforcement required for the specified curvature ductility demands of HSC columns. The accuracy of the proposed design equations was checked by comparing with experimental data reported in previous literature, and a satisfactory correlation was found. |
| first_indexed | 2024-10-01T05:42:48Z |
| format | Journal Article |
| id | ntu-10356/95045 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:42:48Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/950452019-12-06T19:07:11Z Confining reinforcement for high strength concrete columns Li, Bing. Park, R. School of Civil and Environmental Engineering DRNTU::Engineering A comprehensive parametric study of reinforced high-strength concrete (HSC) columns is undertaken to verify the current ACI 318 and NZS 3101 code provisions of confining reinforcement in the potential plastic hinge regions of HSC columns. A full range of parameters that have significant influences on the available strength and curvature ductility factor in the potential plastic hinges of the columns during cyclic flexure are examined. These include the concrete compressive strength fc′ , the axial load level Pe/fc′ Ag, the yield strength of transverse reinforcement fyh, the volume ratio of the transverse reinforcement, the area ratio of the longitudinal reinforcement to the gross section area ρt, and the ratio of Ag/Ac. Previously derived stress-strain relationships for compressed HSC confined by various quantities, yield strengths, and arrangements of transverse reinforcement are used in cyclic moment-curvature analyses of a range of reinforced HSC columns to derive design equations. The proposed design equations are able to determine the quantities of transverse reinforcement required for the specified curvature ductility demands of HSC columns. The accuracy of the proposed design equations was checked by comparing with experimental data reported in previous literature, and a satisfactory correlation was found. Published version 2012-08-15T07:58:49Z 2019-12-06T19:07:11Z 2012-08-15T07:58:49Z 2019-12-06T19:07:11Z 2004 2004 Journal Article Li, B., & Park, R. Confining reinforcement for high strength concrete columns. ACI Structural Journal, 101(3), 314-324. https://hdl.handle.net/10356/95045 http://hdl.handle.net/10220/8398 http://www.concrete.org/PUBS/JOURNALS/OLJDetails.asp?Home=SJ&ID=13091 en ACI structural journal © 2004 American Concrete Institute. This paper was published in ACI structural journal and is made available as an electronic reprint (preprint) with permission of American Concrete Institute. The paper can be found at the following official URL: [http://www.concrete.org/PUBS/JOURNALS/OLJDetails.asp?Home=SJ&ID=13091]. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper is prohibited and is subject to penalties under law. application/pdf |
| spellingShingle | DRNTU::Engineering Li, Bing. Park, R. Confining reinforcement for high strength concrete columns |
| title | Confining reinforcement for high strength concrete columns |
| title_full | Confining reinforcement for high strength concrete columns |
| title_fullStr | Confining reinforcement for high strength concrete columns |
| title_full_unstemmed | Confining reinforcement for high strength concrete columns |
| title_short | Confining reinforcement for high strength concrete columns |
| title_sort | confining reinforcement for high strength concrete columns |
| topic | DRNTU::Engineering |
| url | https://hdl.handle.net/10356/95045 http://hdl.handle.net/10220/8398 http://www.concrete.org/PUBS/JOURNALS/OLJDetails.asp?Home=SJ&ID=13091 |
| work_keys_str_mv | AT libing confiningreinforcementforhighstrengthconcretecolumns AT parkr confiningreinforcementforhighstrengthconcretecolumns |