Study of Seismic Behavior of RC Beam-Column Joints Strengthened by Sprayed FRP

被引：30
|
作者：
Yang, Zhao [1 ]
Liu, Yong [1 ]
Li, Jiajia [1 ]
机构：
[1] Wuhan Univ Sci & Technol, Inst Urban Construct, Wuhan 430065, Hubei, Peoples R China
来源：
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING | 2018年 / 2018卷
关键词：
CONCRETE; SYSTEM;
D O I：
10.1155/2018/3581458
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
To study the seismic behavior of RC beam-column joints strengthened with sprayed FRP, five 1: 2 reduced-scale specimens of joints were tested through quasi-static experiments The failure modes, hysteretic curves, skeleton curves, strength, deformation, degradation of strength and stiffness, ductility, and energy dissipation capacity were studied. Furthermore, the effect of three main influencing factors including the sprayed FRP thickness, strengthened area, and axial compression ratio was analyzed in this paper as well the results show that sprayed FRP strengthening can improve the seismic behavior of RC beam-column joints effectively the increase of sprayed FRP thickness can lead to a better seismic performance for the joints. Strengthening area can affect the bearing capacity obviously. Higher axial compression ratio can increase the bearing capacity and initial stiffness, but it can make the deformation capacity and ductility decreased the study can provide references to further research on the sprayed FRP material for strengthening of RC beam-column joints.
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页数：10
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