TEST STUDY AND ANALYSIS ON STEEL STRESS OF SIMULATED HEAVILY CORRODED R. C. BEAMS

Sun Bin; Niu Ditao; Li Linfeng; Wang Qinglin

doi:10.13204/j.gyjz200805016

Volume 38 Issue 5

Dec. 2014

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Wang Yihong, Zhou Shengdong, Li Hao, Wang Hanwei. EXPERIMENTAL RESEARCH ON RESISTING PUNCHING BEHAVIOR OF THE COLUMN FOOTING NODE OF CFST COLUMN WITH STUDS[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(2): 115-119. doi: 10.13204/j.gyjz201202026

Citation:

Sun Bin, Niu Ditao, Li Linfeng, Wang Qinglin. TEST STUDY AND ANALYSIS ON STEEL STRESS OF SIMULATED HEAVILY CORRODED R. C. BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2008, 38(5): 66-70. doi: 10.13204/j.gyjz200805016

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TEST STUDY AND ANALYSIS ON STEEL STRESS OF SIMULATED HEAVILY CORRODED R. C. BEAMS

doi: 10.13204/j.gyjz200805016

1.
1. China Academy of Building Research,Beijing 100013;
2.
2. Xi'an University of Architecture and Technology Xi'an 710055

Received Date: 2007-02-09
Publish Date: 2008-05-20

Abstract

Abstract

Due to deterioration of bond strength caused by corrosion, cooperative working capacity between steel bar and concrete is degrading, which makes steel strain lag behind concrete tensile strain. When the member corroded heavily, bond stress between steel bar and concrete is almost lost, and concrete in the compression zone may be failure before tensile steel bar arrives its yielding strain, which may make the member form a surplus reinforcement beam due to bond failure test. Simulation and finite element analysis on simulated corroded unbonded R. C. beams are made to investigate factors affecting the level of steel stress and its affecting rules in the limit states without bond. The relation between steel stress and reinforcement index of unbonded R. C. beams is established, which can be used to evaluate the bearing capacity of heavily corroded beams, and which can also be helpful to study the degrading mechanism and calculating method on bearing capacity for ordinary corroded R. C. beams.
- heavily corroded,
- unbonded,
- R C beam,
- steel stress,
- reinforcement index

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References(12)

References

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A-l Sulaimaini G J, Kaleermullah M, Basunbul A I, et al. Influence of Corrosion and Cracking on Bond Behavior and Strength of Reinforced

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