Confinement of Columns and Wall Boundary Elements Using Headed Bars

AbstractTwo series of full-scale specimens were constructed and tested under pure axial load to investigate the effectiveness of confinement provided by headed bars. One series consisted of columns and the other series represented boundary elements in shear walls. Each series consisted of five speci...

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Bibliographic Details
Published in:Journal of structural engineering (New York, N.Y.) N.Y.), 2014-03, Vol.140 (3)
Main Authors: Mitchell, D, Cook, W. D, Deng, Y, Liu, J
Format: Article
Language:English
Subjects:
Bars
Boundary element method
Columns (structural)
Confinement
Hoops
Mathematical analysis
Shear walls
Technical Papers
Walls
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Summary:AbstractTwo series of full-scale specimens were constructed and tested under pure axial load to investigate the effectiveness of confinement provided by headed bars. One series consisted of columns and the other series represented boundary elements in shear walls. Each series consisted of five specimens that included a specimen without any confinement, a specimen with closed ties, a specimen with seismic hoops and crossties, a specimen with closed hoops and headed bars replacing the crossties, and a specimen that had all of the transverse reinforcement replaced by headed bars. It was concluded that headed bars provided a viable solution when used to replace crossties, offering similar confinement. In these monotonically loaded tests, it was also found that headed bars could be used to replace entirely the hoops and the crossties, offering similar confinement effects.
ISSN:0733-9445
1943-541X
DOI:10.1061/(ASCE)ST.1943-541X.0000850