郑州大学学报（工学版）2012，Vol.33Issue(1)：1-5,5.DOI:10.3969./j.issn.1671-6833.2012.01.001
高铁用HRBF500钢筋混凝土梁疲劳寿命预测分析
The Fatigue Life Prediction and Analysis of RC Beams with HRBF500 Used in High-speed Rail
摘要
Abstract
500 MPa level hot rolled steel bar of ultra-fine grains(HRBF500 steel bar)is successfully developed new-type steel of high-speed railways in Chinese metallurgical industry. HRBF500 steel bars will be used in high-speed reinforced, so it will be exposed to repeated loads. In view of that, the fatigue life predictions of RC beams reinforced with HRBF500'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 studied and compared well with the test results, which indicated that steel ratio, minimum fatigue load and load amplitude were the main factors affecting the fatiue life. In order to promote prediction method for practcal engineering design, the simplified fatigud life formulas were obtained based on comprehensive analysis of finite element calculation results. Those formulas can provide guidance for practical engineering design.关键词
钢筋混凝土梁/HRBF500钢筋/疲劳寿命/有限元分析Key words
RC beam/HRBF500 steel/fatigue life/finite element analysis分类
交通工程引用本文复制引用
王新玲,高会宗,李可..高铁用HRBF500钢筋混凝土梁疲劳寿命预测分析[J].郑州大学学报（工学版）,2012,33(1):1-5,5.基金项目
国家"863"支撑计划资助项目(2008AA030704) （2008AA030704）
