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	Study on the law of fatigue stiffness decay of reinforced concrete beams subjected to corrosion fatigue
	He Shi-qin ; Teng Qi ; Xu Xi-quan ; Wang Hai-chao
	2010-10-12 ; 2010-10-12
关键词	Experimental/ beams (structures) corrosion fatigue internal stresses reinforced concrete stress corrosion cracking/ reinforced concrete beams fatigue stiffness decay aggressive environment reinforcement strain residual strain reinforcement corrosion fatigue fatigue cracking/ E2110A General shapes and structures E1710 Engineering materials E1520N Surface treatment and coating techniques E2180E Fracture mechanics and hardness (mechanical engineering)
中文摘要	In order to study the decaying law of stiffness of reinforced concrete beams in aggressive environment , the fatigue module of concrete and the stiffness of beams subjected to cyclic loading in the air, water and salt solution were analyzed. Based on the strain of reinforcement and concrete, residual strain and deflection tested in the experiment of reinforced concrete beams subjected to corrosion fatigue, the decreasing rate of corrosion fatigue module of concrete and the decaying law of fatigue stiffness of flexural members were obtained. The results show that the fatigue modules of concrete decrease whereas the concrete does not suffer from significant corrosion in the experiment. The decreasing rate of fatigue modules is different in various environments due to the development of the reinforcement corrosion fatigue and the coordinated working of the section between reinforcement and concrete. Also the measured decreasing rate of corrosion fatigue stiffness of the beam is different in various environments, which is the fastest in the salt solution. The main reason is the continuous developing of corrosion fatigue cracking of reinforcement leading to the decreasing of stiffness of the beams.
语种	中文
出版者	Harbin Institute of Technology ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/82012]
专题	清华大学
推荐引用方式 GB/T 7714	He Shi-qin,Teng Qi,Xu Xi-quan,et al. Study on the law of fatigue stiffness decay of reinforced concrete beams subjected to corrosion fatigue[J],2010, 2010.
APA	He Shi-qin,Teng Qi,Xu Xi-quan,&Wang Hai-chao.(2010).Study on the law of fatigue stiffness decay of reinforced concrete beams subjected to corrosion fatigue..
MLA	He Shi-qin,et al."Study on the law of fatigue stiffness decay of reinforced concrete beams subjected to corrosion fatigue".(2010).

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