[1]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(01):1-5.[doi:10.3969/j.issn.1671-6833.2012.01.001]
　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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高铁用HRBF500钢筋混凝土梁疲劳寿命预测分析()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
33
期数:
2012年01期
页码:
1-5
栏目:
出版日期:
2012-01-10

文章信息/Info

Title:
The Fatigue Life Prediction and Analysis of RC Beamswith HRBF500 Used in High-speed Rail
作者:
王新玲; 高会宗; 李可.
郑州大学土木工程学院,河南郑州,450001, 中广国际建筑设计研究院,北京,100045, 东南大学土木工程学院,江苏南京,210096
Author(s):
WANG Xinling; CAO Huizong; LI Ke
1.Sehool of Civil Engineering Zhengzhou University, 2hengzhou 450001 , China; 2., China Rudio & TY Intemational ArchiteelureDesig-Research Institute, Beijing 10004$, China; 3. School of Civil Engineering Southeast University, Nanjing 210096, China
关键词:
钢筋混凝土梁;  HRBF500钢筋;  疲劳寿命;  有限元分析
Keywords:
RC beam;  HRBF500 steel;  fatigue life;  fnite element analysis
分类号:
U467.4+97
DOI:
10.3969/j.issn.1671-6833.2012.01.001
摘要:
HRBF500钢筋是我国冶金行业新研发的超细晶粒高强钢筋,若用于高铁中的钢筋混凝土构件需承受反复荷载,HRBF500钢筋混凝土梁的疲劳寿命预测成为必须解决的问题.基于ANSYS软件,对配有HRBF500钢筋的矩形和T形混凝土梁的疲劳寿命进行分析,得出影响疲劳寿命的主要因素为配筋率,最小疲劳荷载及荷载幅,寿命预测和试验结果吻合较好.为了使预测方法用于实际工程设计,在有限元计算的基础上进行系统的分析、拟合,提出了HRBF500钢筋混凝土梁疲劳寿命预测的简化计算公式,可为实际高铁工程设计提供参考.
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.

相似文献/References:

[1]李广慧,陈捷,刘立新.无腹筋 RC 梁受剪承载力统一分析[J].郑州大学学报(工学版),1998,19(02):24.
　[J].Journal of Zhengzhou University (Engineering Science),1998,19(01):24.

更新日期/Last Update: 1900-01-01