FATIGUE DAMAGE MECHANISM OF HRBF500 RC BEAMS

Wang Xinling; Kang Xiandong; Li Ke; Huang Weidong

doi:10.13204/j.gyjz201311011

Volume 43 Issue 11

Dec. 2014

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Wang Xinling, Kang Xiandong, Li Ke, Huang Weidong. FATIGUE DAMAGE MECHANISM OF HRBF500 RC BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 45-48. doi: 10.13204/j.gyjz201311011

Citation:

Wang Xinling, Kang Xiandong, Li Ke, Huang Weidong. FATIGUE DAMAGE MECHANISM OF HRBF500 RC BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 45-48. doi: 10.13204/j.gyjz201311011

Wang Xinling, Kang Xiandong, Li Ke, Huang Weidong. FATIGUE DAMAGE MECHANISM OF HRBF500 RC BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 45-48. doi: 10.13204/j.gyjz201311011

Citation:

Wang Xinling, Kang Xiandong, Li Ke, Huang Weidong. FATIGUE DAMAGE MECHANISM OF HRBF500 RC BEAMS[J]. INDUSTRIAL CONSTRUCTION, 2013, 43(11): 45-48. doi: 10.13204/j.gyjz201311011

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FATIGUE DAMAGE MECHANISM OF HRBF500 RC BEAMS

doi: 10.13204/j.gyjz201311011

1.
1. School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China;
2.
2. School of Civil Engineering,Southeast University,Nanjing 210096,China;
3.
3. Zhengzhou City Municipal Engineering Administration,Zhengzhou 450002,China

Received Date: 2013-06-14
Publish Date: 2013-11-20

Abstract

Abstract

HRBF500 rebar is a successfully developed new-type high-strength steel bar in Chinese metallurgical industry. Based on the fatigue life numerical simulation and test results,fatigue damage mechanism of rectangular and T-section RC beams with HRBF500 steel bars was analyzed and investigated. The fatigue damage was defined by using the residual bending rigidity of the beams and the accumulative fatigue damage model was obtained. According to the test results,it can be seen that the growth rates of fatigue damage reduced with increase of the initial stress of the tensile reinforcements,and the expressions for correlation coefficients( the growth rate of fatigue damage) of the model was introduced. The results indicate that,the proposed accumulative fatigue damage model can accurately describe the first and second stages of fatigue damage process of RC beams with HRBF500 bars. The remaining fatigue life can be predicted by the model.
- ＲC beams,
- HＲBF500 steel bars,
- fatigue damage,
- finite element analysis,
- damage model

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References(14)

References

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