EXPERIMENT STUDY ON SEISMIC BEHAVIOR OF RC FRAMES STRENGTHENED BY CFRP SHEETS WITH DIFFERENT DAMAGED DEGREE AT SUSTAINING LOAD

Wang Xinling; Yao Zhangtang; Li Jing

doi:10.13204/j.gyjz201110003

Volume 41 Issue 10

Dec. 2014

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Article Navigation > INDUSTRIAL CONSTRUCTION > 2011 > 41(10): 10-14,19

Wang Xinling, Yao Zhangtang, Li Jing. EXPERIMENT STUDY ON SEISMIC BEHAVIOR OF RC FRAMES STRENGTHENED BY CFRP SHEETS WITH DIFFERENT DAMAGED DEGREE AT SUSTAINING LOAD[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(10): 10-14,19. doi: 10.13204/j.gyjz201110003

Citation:

Wang Xinling, Yao Zhangtang, Li Jing. EXPERIMENT STUDY ON SEISMIC BEHAVIOR OF RC FRAMES STRENGTHENED BY CFRP SHEETS WITH DIFFERENT DAMAGED DEGREE AT SUSTAINING LOAD[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(10): 10-14,19. doi: 10.13204/j.gyjz201110003

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EXPERIMENT STUDY ON SEISMIC BEHAVIOR OF RC FRAMES STRENGTHENED BY CFRP SHEETS WITH DIFFERENT DAMAGED DEGREE AT SUSTAINING LOAD

doi: 10.13204/j.gyjz201110003

1.
1. College of Civil Engineering,Zhengzhou University,Zhengzhou 450002,China;
2.
2. Zhengzhou Science Research and Design Academy,Zhengzhou 450003;
3.
3. Zhengzhou Engineering College,Zhengzhou 450003,China

Received Date: 2010-11-29
Publish Date: 2011-10-20

Abstract

Abstract

Based on two-layer industry workshops as project background，three RC frame models with the scale 1/3 was designed and produced，with the same size and reinforcement． First，low-cyclic repeated load is imposed on the three RC frame models so that they are in a different degree of damage，then，strengthened by CFRP in conditions of constant loading． Second，the same experiments for the strengthened frames are done again． Based on the data from test，the curves such as load-displacement hysteresis curve，load-skeleton curve and seismic capacity of damaged RC frame strengthened by CFRP are analyzed． And seismic properties of the different damaged RC frames strengthened by CFRP are compared． The results show that the different damaged RC frames strengthened by CFRP have good seismic performance and serviceability． Which provides a theoryetic basis for strengthening a damaged RC frame after rare earthquake．
- strengthen damaged concrete frame,
- strengthen by CFRP,
- seismic performance,
- lateral low-cycle repeated load

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References(10)

References

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Norris T,Sadatmanesh H,Ehsani M R.Shear and Flexural Strengthening of RC Beam with Carbon Fiber Sheets[J].Journal of Structural Engineering，1997，123(7):903-911.

[3] Jianchun Li，Bijan Samali，Lin Ye，et al.Behaviour of Concrete Beam-Column Connections Reinforced with Hybrid FRP Sheet [J].Composite Structures，2002，57(6):357-365.

[4] 李贵炳，张爱晖，金伟良.钢筋混凝土梁加固时的既有荷载对其抗弯性能的影响[J].土木工程学报，2006，39(1):13-20.

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[6] Balsamo A，Colombo A，Manfredi G.Seismic Behavior of a Fullscale RC Frame Repaired Using CFRP Laminates[J].Engineering Structures，2005，27(5):769-780.

[7] 王新玲，朱俊涛，吕林.碳纤维布加固完好混凝土框架结构抗震性能试验研究[J].郑州大学学报: 工学版，2008，29 (4) :81-85.

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