等值法施工斜拉索体系在曹妃甸纳潮河大桥中的应用

Equivalent cable system in the construction of Caofeidian Nachao river bridge

唐山曹妃甸一号路跨纳潮河大桥的斜拉索采用OVM分丝管体系+环氧涂层PE护套钢绞线体系,优点是使用轻便施工设备,高效精确地完成斜拉索的安装和张拉,并可以保证整体斜拉索的完全防腐。介绍了OVM分丝管+环氧涂层PE护套钢绞线体系在唐山曹妃甸跨纳潮河大桥挂索施工中用千斤顶配合测力传感器相结合共同检测控制索力的方法。

Caofeidian Nachao River Bridge uses OVM sub-wire cube control +PE Epoxy-Surpass Coat strand system.The advantage is are that you can use light equipment to complete the installantion of the cable and tension accurately and effectively,and can guaruntee the whole cable completely out of corrosion.This paper mainly introduces the method of OVM sub-wire cube control system +PE Epoxy-Surpass Coat strand system being used in Caofeidian Nachao River Bridge,that we use jack combined with force sensors to check the control cable tension.