摘要
哑铃型截面钢管混凝土拱肋在压注混凝土施工的过程中,存在钢腹板的局部应力超过钢材屈服应力甚至会拉裂破坏的问题。应用空间有限元程序就此进行分析,分析中考虑钢材的弹塑性性能,对同类型拱桥的设计与施工具有借鉴意义。
During the process of pumping concrete for CFST arch ribs of dumbbell-shaped cross section,the problem that the partial stress of the steel web plate will exceed the yield stress and even cause crack owing to the great pressure,has to be addressed.In this paper,the spatial FEM is applied to analyze this problem,in which the steel elasto-plastic behavior is also taken into account.The results and conclusions will have implications for the design and construction of similar arch bridges.
出处
《公路交通科技》
CAS
CSCD
北大核心
2004年第10期66-70,共5页
Journal of Highway and Transportation Research and Development
关键词
钢管混凝土
拱桥
拱肋
哑铃型截面
压注混凝土
CFST
Arch bridge
Arch rib
Dumbbell-shaped cross section
Pumping concrete
