铁道科学与工程学报Issue(2)：309-316,8.
钢－混凝土组合箱梁疲劳性能的有限元分析
Finite ele ment analysis of fatigue behavior for steel-concrete co mposite box bea m
摘要
Abstract
To improve the fatigue performance of composite box girders,ANSYS software was adopted to conduct numerical simulation and research.Firstly according to the existing tests,three box girder models with different combinations of shear connection degree were established to verify the applicability of the finite element model. Further,a series of varying parameters for composite box girder specimens were analyzed and calculated to study the effect of different factors on fatigue performance.The results show that,changing the flange thickness and span of box girder has a greater impact on the fatigue performance of composite box girder,while there exists little effect for the change of the strength of concrete and steel box girder height.In practical engineering,it is suggested that increasing the thickness of the concrete flange is an effective way to improve the girders’fatigue behavior.关键词
组合箱梁/疲劳性能/有限元分析/影响因素Key words
composite box girder/fatigue behavior/finite element analysis/influencing factors分类
交通工程引用本文复制引用
张大付,余志武..钢－混凝土组合箱梁疲劳性能的有限元分析[J].铁道科学与工程学报,2015,(2):309-316,8.基金项目
国家科技支撑计划项目（2011BAJ09B00）；中南大学研究生自主探索创新项目 （）
