曹妃甸工业区1#桥工程索塔锚固区性能研究

Study on Performance of 1# Bridge Engineering Cable Pylon Anchorage Zone in Caofeidian Industrial Area

混凝土索塔钢锚箱锚固结构由于其受力方式明确、施工方便等优点,正在被越来越多的斜拉桥所采用。该文以曹妃甸工业区1#桥工程为背景,通过对钢混索塔锚固区精细化仿真有限元分析,对锚固区应力集中程度、应力分布、应力水平、刚度过渡的平稳性、结构安全储备进行评估。

The concrete cable pylon steel-anchor-box anchorage structure has been more and more applied in the construction of cable-stayed bridges because of its advantages of clear mechanic behavior and convenient construction.On the background of Caofeidian Industrial Area No.1 Bridge Project,the article evaluates the stress concentration,the stress distribution,the stress level,the smoothness of the rigidity transition and the safe storage of structure through the fine imitating finite element analysis of steel-concrete cable pylon anchorage zone.