Title:
Interlocking Spiral Confinement for Rectangular Columns
Author(s):
Samuel Yen-Liang Yin, Tzu-Liang Wu, Tony C. Liu, Shamim A. Sheikh, and Raymond Wang
Publication:
Concrete International
Volume:
33
Issue:
12
Appears on pages(s):
38-45
Keywords:
concrete, reinforcement, axial compression, lateral cyclic loading, design
DOI:
Date:
12/1/2011
Abstract:
Recently, an innovative interlocking multi-spiral confinement design for rectangular concrete columns was developed. This development involved testing and evaluation of a large number of full-scale reinforced concrete columns in axial compression and lateral cyclic loadings. Test results presented in this article verify that columns with interlocking multi-spiral confinement design exhibit higher compressive strength and ductility when compared to columns with conventional rectilinear hoop design. The multi-spiral confinement design was also found to be the most efficient layout in terms of automatic assembly.