The Fatigue Life Prediction and Analysis of RC Beamswith HRBF500 Used in High-speed Rail
[1]WANG Xinling,CAO Huizong,LI Ke.The Fatigue Life Prediction and Analysis of RC Beamswith HRBF500 Used in High-speed Rail[J].Journal of Zhengzhou University (Engineering Science),2012,33(01):1-5.[doi:10.3969/j.issn.1671-6833.2012.01.001]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
33
Number of periods:
2012 01
Page number:
1-5
Column:
Public date:
2012-01-10
- Title:
- The Fatigue Life Prediction and Analysis of RC Beamswith HRBF500 Used in High-speed Rail
- Keywords:
- RC beam; HRBF500 steel; fatigue life; fnite element analysis
- CLC:
- U467.4+97
- Abstract:
- 500 MPa level hot rolled steel bar of ultra-fine grains( HRBF500 steel bar) is successfully developednew-type steel of high -speed railways in Chinese metallurgical industry. HRBF500 steel bars will be used inhigh-speed reinforced, so it will be exposed to repeated loads. In view of that, the fatigue life predictions ofRC beams reinforced with HRBF$00’S are urgent to be solved. Based on ANSYS software, the fatigus life predictions of rectangular and T-section RC beams reinforced with HRBF500 were sudied and compared well withthe test results, which indicated that steel ratio , minimum fatigue load and load amplitude were the main fac.tors affecting the fatiue life. In order to promote prediction method for practcal engineering design, the simpli-fied fatigud life formulas were obtained based on comprehensive analysis of finite element calculation results.Those formulas can provide guidance for practical engineering design.
- References:
- -
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Last Update:
1900-01-01