Title:
Dowel Bar Contribution to Bond Deterioration under Cyclic Loading (Open Source)
Author(s):
Edom A. Zewdie, Chikako Fujiyama, and Koichi Maekawa
Publication:
Structural Journal
Volume:
121
Issue:
5
Appears on pages(s):
123-132
Keywords:
bond deterioration; crack; cyclic shear; dowel; joint interface; premature failure; splitting failure
DOI:
10.14359/51740858
Date:
9/1/2024
Abstract:
This research delves into the performance of dowels in reinforced
concrete joints, highlighting the crucial role of subgrade reaction
in providing firm support for dowel bars. The experimental
analysis conducted on jointed specimens loaded below their dowel
capacity revealed permanent deformations. The examination
discerned a gradual extension of cracks emanating from the joint
interface, attributing their initiation to bond deterioration under
cyclic loading conditions. This research encompasses diverse variables, including dowel arrangements, bar sizes, types, confinement levels, bond conditions, and section size, offering a comprehensive exploration of factors influencing this different joint behavior.