Title:
Dry Glass Fiber Wires Confinement for Concrete Columns
Author(s):
El Fattah
Publication:
Web Session
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/17/2021
Abstract:
Dry glass fiber wires with 10, 20 and 30 bundles were wrapped around 75 x 150 mm concrete cylinders to act as active confinement for stub columns. Confinement level varied in the experimental program by changing the bundle thickness and the lateral spacing of the glass fiber rings. The specimens were tested in compression and axial force, and axial displacement along with lateral displacement were recorded. LVDTs captured the axial deformation and lateral strain gauges monitored the lateral deformation. It was recorded that there was an increase of strength about 100% on average compared to the control specimens. The strength increased proportionally to the confinement increase. The ductility also was increased with the increase of level of confinement. The maximum lateral strain recorded was for the moderate confinement level. A model was developed to predict the full stress-strain response of the concrete confined with active dry fibers. The proposed model was well correlated to experimental results.