Title:
Ductility of Concrete Columns with Double-Head Studs
Author(s):
Samer A. Youakim and Amin Ghali
Publication:
Structural Journal
Volume:
99
Issue:
4
Appears on pages(s):
480-487
Keywords:
column; crosstie; ductility; stud; transverse reinforcement
DOI:
10.14359/12117
Date:
7/1/2002
Abstract:
The experimental results of four column specimens laterally reinforced with either double-head studs or conventional crossties under seismic loading are presented. The columns’ dimensions are 250 x 500 x 1500 mm, and are laterally loaded to bend about their weak axis. The specimens are made from 25 MPa concrete and tested under two axial load levels combined with incrementally increasing lateral-displacement reversals. The test variables include axial load level and volumetric ratio of lateral steel. It is shown that, while columns with either type of lateral reinforcement attain almost the same strength, columns with double-head studs exhibit superior performance in terms of ductility and energy dissipation.