EXPERIMENTAL STUDY OF EARTHQUAKE-DAMAGED RC FRAME COLUMNS STRENGTHENED WITH SPRAYED HYBRID BF-CFRP

Gu Qian; Li Bo; Bitewlgn M． Getahune; Peng Yujia

doi:10.13204/j.gyjz201508034

Volume 45 Issue 8

Nov. 2015

Turn off MathJax

Article Contents

Abstract

References

Article Navigation > INDUSTRIAL CONSTRUCTION > 2015 > 45(8): 185-191

Gu Qian, Li Bo, Bitewlgn M． Getahune, Peng Yujia. EXPERIMENTAL STUDY OF EARTHQUAKE-DAMAGED RC FRAME COLUMNS STRENGTHENED WITH SPRAYED HYBRID BF-CFRP[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(8): 185-191. doi: 10.13204/j.gyjz201508034

Citation:

Gu Qian, Li Bo, Bitewlgn M． Getahune, Peng Yujia. EXPERIMENTAL STUDY OF EARTHQUAKE-DAMAGED RC FRAME COLUMNS STRENGTHENED WITH SPRAYED HYBRID BF-CFRP[J]. INDUSTRIAL CONSTRUCTION, 2015, 45(8): 185-191. doi: 10.13204/j.gyjz201508034

Citation:

PDF( 0 KB)

EXPERIMENTAL STUDY OF EARTHQUAKE-DAMAGED RC FRAME COLUMNS STRENGTHENED WITH SPRAYED HYBRID BF-CFRP

doi: 10.13204/j.gyjz201508034

Publish Date: 2015-08-20

Abstract

Abstract

An experimental investigation on the seismic behavior of earthquake-damaged RC frame columns strengthened with sprayed hybrid basalt and carbon fiber reinforced polymer ( BF-CFRP) was presented． Three specimens with 1 /2 scale were tested by horizontal cyclic loading combined with constant gravity loads． The test results indicated that after spraying repair the ultimate bearing capacity of the damaged frame column yielded steel bars was nearly restored to the level before its damage，the ductility coefficient and the cumulative energy dissipation were respectively increased by 7. 43% and 22%，and the stiffness degeneration rate beyond peak load was lower than that of unrepaired column; the peak load and the cumulative energy dissipation of the damaged frame column were respectively decreased by 11. 9% and 39% after spraying repair，the ductility coefficient was increased a little，and the initial stiffness was much lower than the other two specimens because of serious pre-damage，but the stiffness degeneration rate was almost the same as the other two due to the effective confinement action of sprayed FRP coatings． That is to say，the seismic behavior of earthquake-damaged frame column can be rehabilitated even enhanced through spraying hybrid BF － CFRP，which demonstrates that this method can quickly repair earthquakedamaged frame columns and effectively hinder the collapse of RC frame structures in aftershock．
- sprayed fiber reinforced polymer ( FRP),
- hybrid basalt-carbon fibers,
- seismic strengthening,
- RC frame column,
- earthquake-damaged

FullText(HTML)

References(0)

References

Relative Articles

[1]	LIU Chengqing, XU Dibing, ZHANG Huaxin. Seismic Strengthening Design and Analysis of a Boiler Steel Frame[J]. INDUSTRIAL CONSTRUCTION, 2024, 54(3): 237-245. doi: 10.13204/j.gyjzG22050603
[2]	WU Mai, MA Shiqi, ZHAO Xin. Research on Performance-Based Shock-Absorbing Reinforcement of a High-Rise SRC Frame Structure[J]. INDUSTRIAL CONSTRUCTION, 2023, 53(10): 68-74. doi: 10.13204/j.gyjzG20102914
[3]	YANG Zhao, LING Zhihan, YE Jiaolong, LIU Kun, YANG Quan, ZHOU Xin. EXPERIMENTAL STUDY ON ASEISMIC PROPERTIES OF EARTHQUAKE-DAMAGED JOINTS FOR ASSEMBLED MONOLITHIC CONCRETE FRAMES STRENGTHENED WITH CARBON FIBER SHEETS[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(7): 185-193. doi: 10.13204/j.gyjzG19121615
[4]	LI Jianfen, WANG Yan, CHEN Xiao. CONTRASTIVE ANALYSIS ON DAMAGE PHENOMENA AND STRAIN DEVELOPMENT IN JOINT AREA OF COVER PLATE REINFORCED STEEL FRAME CONSIDERING FLOOR EFFECT[J]. INDUSTRIAL CONSTRUCTION, 2021, 51(4): 111-117. doi: 10.13204/j.gyjzG21011108
[5]	He Lieqi, Yang Junjie, Jin Cheng, Qi Xiaokai. EXPERIMENTAL RESEARCH ON THE REINFORCEMENT OF BRICK WALLS WITH X-SHAPED STEEL MESH AND HIGH-STRENGTH MORTAR[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(8): 64-68,74. doi: 10.13204/j.gyjz201308014
[6]	Shu Hongbo, Bo Yong, Li Hongxia. SEISMIC REINFORCEMENT DESIGN AND CONSTRUCTION OF THE IN-PATIENT BUILDING OF A HOSPITAL[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(6): 141-145. doi: 10.13204/j.gyjz201306029
[7]	Li Gang, Yao Jian. THE STATE AND THE ART OF RESEARCH ON SEISMIC BEHAVIOR OF FRP-STRENGTHENED RC COLUMNS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(2): 129-133,151. doi: 10.13204/j.gyjz201202029
[8]	Zhang Xuewei, Liu Weidong, Zhang Li, Zhao Yan, Yan Yinkun. RENOVATION AND REINFORCEMENT DESIGN OF A FRAMED OFFICE BUILDING[J]. INDUSTRIAL CONSTRUCTION, 2011, 41(2): 123-126,122. doi: 10.13204/j.gyjz201102028
[9]	Ji Erge, Zeng Peng, Ni Jian. APPLICATION OF THE CARBON FIBER REINFORCED POLYMER IN ASEISMIC STRENGTHENING OF A HOSPITAL IN URUMQI[J]. INDUSTRIAL CONSTRUCTION, 2010, 40(8): 139-141,148. doi: 10.13204/j.gyjz201008031
[10]	Zhu Yong, Su Qiliang, Zhou Yun. EFFECTS ON SEISMIC STRENGTHENING OF COUPLING BEAMS WITH OR WITHOUT BOLT CONNECTIONS IN BEAM SPAN[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(12): 42-44,38. doi: 10.13204/j.gyjz200912012
[11]	Ouyang Yu, Zhang Wenjie. ANALYSIS OF THE SEISMIC EFFECTS FOR THE SEISMIC RETROFIT OF A CONCRETE FRAME WITH BUCKLING-RESTRAINED BRACES[J]. INDUSTRIAL CONSTRUCTION, 2009, 39(11): 118-121. doi: 10.13204/j.gyjz200911027
[12]	Wang Qin, Yang Lihua, Zhang Xin. STRUCTURE STRENGTHENING DESIGN OF A FRAME-SHEAR WALL BUILDING WITH TWELVE FLOORS[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(10): 115-117. doi: 10.13204/j.gyjz20081028
[13]	Yao Qianfeng, Lu Junlong, Zhang Yin. RESEARCH ON SEISMIC REINFORCEMENT METHODS FOR MASONRY PAGODAS[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(9): 115-118. doi: 10.13204/j.gyjz200709027
[14]	Wu Gang, Gu Dongsheng, Wu Zhishen, Jiang Jianbiao, Hu Xianqi. COMPARATIVE STUDY ON SEISMIC PERFORMANCE OF CIRCULAR CONCRETE COLUMNS STRENGTHENED WITH BFRP AND CFRP COMPOSITES[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(6): 19-23. doi: 10.13204/j.gyjz200706006
[15]	Wu Gang, Wei Yang, Wu Zhishen, Jiang Jianbiao, Hu Xianqi. COMPARATIVE STUDY ON SEISMIC PERFORMANCE OF RECTANGULAR CONCRETE COLUMNS STRENGTHENED WITH BFRP AND CFRP COMPOSITES[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(6): 14-18. doi: 10.13204/j.gyjz200706005
[16]	Yan Weibo, Li Zhenbao, Ma Hua, Zhou Xiyuan, Duan Shichang. AN EXPERIMENTAL STUDY ON PERFORMANCES OF STRENGTHENED RC FRAMES WITH RC DAMPERS AND BRACES[J]. INDUSTRIAL CONSTRUCTION, 2007, 37(7): 29-32. doi: 10.13204/j.gyjz200707010
[17]	Yang Xiaoming, Wang Xintang, Li Peizhen, Zhang Liande. DEVELOPMENT AND STUDY OF MAN\\|COMPUTER INTERACTION PROGRAM FOR ASEISMIC STRENGTHENING OF RC FRAMES[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(11): 75-77. doi: 10.13204/j.gyjz200411020
[18]	Chen Yaoyan, Ruan Jimin, Wang Bosheng, Zhang Binbin. EXPERIMENTAL STUDY ON ASEISMIC BEHAVIOR OF POROUS BRICK MASONRY STRENGTHENED WITH GFRP[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(7): 88-90,96. doi: 10.13204/j.gyjz200407026
[19]	Zhu Kai, Hu Cheng, Wang Jingquan, Sun Baojun. STRENGTHENING WITH CFRP AND SOFTWARE DESIGN——SEISMIC STRENGTHENING OF COLUMNS[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(4): 25-27. doi: 10.13204/j.gyjz200404007