Seismic behavior of concrete moment frame reinforced with GFRP bars

被引：22
|
作者：
Aliasghar-Mamaghani, Mojtaba [1 ]
Khaloo, Alireza [1 ]
机构：
[1] Sharif Univ Technol, Dept Civil Engn, Tehran, Iran
来源：
COMPOSITES PART B-ENGINEERING | 2019年 / 163卷
基金：
美国国家科学基金会;
关键词：
GFRP bars; Seismic design; Moment frame; Pushover analysis; FLEXURAL BEHAVIOR; PUSHOVER ANALYSIS; RC BEAMS; COLUMNS; PERFORMANCE; DUCTILITY; MODEL;
D O I：
10.1016/j.compositesb.2018.10.082
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this research, four types of concrete moment frame were designed with glass fiber reinforced polymer (GFRP) bars according to ACI 440.1R-15 and the seismic behavior was assessed using pushover analysis. The frames were three and five stories with two and three bays. A computer code was developed to calculate the amount of fiber reinforced polymer bars in beams of the frames. In order to evaluate nonlinear behavior in plastic hinge regions, sections of beams and columns were analyzed on the basis of moment-curvature diagram and also P-M interaction curve for columns. Performance levels of frames were determined considering ATC-40 criteria. Behavior of concrete moment frames reinforced with GFRP bars in terms of strength and ductility compared with frames reinforced with steel bars. Based on the results of analysis, it is concluded that frames reinforced with GFRP bars show higher strength than frames reinforced with steel bars under seismic loads. Besides, in comparison to five story moment frames, three story moment frames reinforced with GFRP bars provide higher ductility.
引用
收藏
页码：324 / 338
页数：15
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