| Fatigue Behavior of Unbonded Partially Prestressed Concrete Beams with Flexure |
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| 作者单位： | Song Yupu Che Humin Yi Wei
Professor，Department of Civil Engineering，Dalian University of Technology，Dalian 116024 Professor，Department of Bridge Engineering，Southwest Jiaotong University，Xian 610031 Doctor，Department of Civil Engineering，Dalian University of Technology，Dalian 116024 |
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| 摘 要： | A study on fatigue behavior of unbonded partially prestressed concrete beams is presented.Model tests have been carried out in static loading and cyclic compressive loading on 15 beams withflexure.The ratios of the lower limit to the upper limit of fatigue load are 0.5 and 0.3 respectively,and thefrequencies of cyclic loading are 8 Hz and 4.5 Hz respectively.The experimental results of the strains of theconcrete and steel bars,the deflection of test beams,and the crack width of normal section are analyzed.According to statistics and analysis of test results,the corresponding calculation models are developed andpresented.
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Fatigue Behavior of Unbonded Partially Prestressed Concrete Beams with Flexure |
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| Authors: | Song Yupu Che Humin Yi Wei Professor |
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| Institution: | Song Yupu Che Humin Yi Wei
Professor,Department of Civil Engineering,Dalian University of Technology,Dalian 116024 Professor,Department of Bridge Engineering,Southwest Jiaotong University,Xian 610031 Doctor,Department of Civil Engineering,Dalian University of Technology,Dalian 116024 |
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| Abstract: | A study on fatigue behavior of unbonded partially prestressed concrete beams is presented. Model tests have been carried out in static loading and cyclic compressive loading on 15 beams with flexure. The ratios of the lower limit to the upper limit of fatigue load are 0.5 and 0.3 respectively, and the frequencies of cyclic loading are 8 Hz and 4.5 Hz respectively. The experimental results of the strains of the concrete and steel bars, the deflection of test beams, and the crack width of normal section are analyzed. According to statistics and analysis of test results, the corresponding calculation models are developed and presented. |
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| Keywords: | fatigue behavior unbonded partially prestressed concrete beam |
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