AXIAL AND CYCLIC LOADING TESTS OF DAMAGED-RC COLUMNS RETROFITTED BY FIBER BELT PRESTRESSING

被引：0
|
作者：
Nakada K. [1 ,3 ]
Senaga D. [2 ,3 ]
Eiki R. [2 ,3 ]
Yamakawa T. [3 ]
Kaneda K. [4 ]
Kuroki M. [5 ]
机构：
[1] Faculty of Eng., Univ. of the Ryukyus
[2] Grad. Sch. of Eng. & Sci., Univ. of the Ryukyus
[3] National Institute of Technology, Ariake College
[4] Faculty of Sci. and Tech., Oita Univ.
来源：
AIJ Journal of Technology and Design | 2022年 / 28卷 / 69期
关键词：
Confined concrete; Damaged RC column; Lateral confinement; Prestress; Shear failure;
D O I：
10.3130/aijt.28.649
中图分类号：
学科分类号：
摘要：
This study proposes a rehabilitation method (emergency retrofitting) to restore the axial compression capacity and shear resistance mechanism of shear-damaged reinforced concrete (RC) columns. For the emergency retrofitting of shear-damaged RC columns, coupler and aramid fiber belts are used. The key concept of this approach is to provide active confinement to firmly confine damaged RC columns externally. The active confinement is used to close cracks in damaged RC columns and to recover their vertical and lateral load-carrying capacities and ductility. To investigate the rehabilitation capacity using fiber-belt prestressing, axial compression and cyclic loading tests were conducted in this study. © 2022 Architectural Institute of Japan. All rights reserved.
引用
收藏
页码：649 / 654
页数：5
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