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国际著名桥梁专家邓文中博士近期又一次提醒我们,应密切关注斜拉桥冷铸锚头索道管内不能积水,以防拉索锈蚀而影响使用寿命。 于1990.5.1竣工通车的安徽淮河凤台斜拉桥(主跨224m),经长期监控观察发现其冷铸锚头索管存有积水,致使拉索锚头出现不同程度的锈蚀问题。为延长其使用寿命,大桥管理处委托大桥原承建单位安徽省路桥公司对其实施补救性防范措施,同时采用国内外较为先进的拉索防震新
Recently, Dr. Deng Wenzhong, an internationally renowned bridge expert, reminded us again that we should pay close attention to the fact that we should not accumulate water in the cable duct of the cable stayed bridge in order to prevent rusting of the cable and affect the service life. The Huaihe River Fengtai Cable-Stayed Bridge (main span: 224m), opened to traffic on May 1, 1990, has been found to have stagnant water and rust on the anchorage head of the cable by long-term monitoring and observation. In order to prolong its service life, the Bridge Management Office entrusted the original construction unit of Bridge, Anhui Road & Bridge Company, to implement remedial precautionary measures against it and at the same time adopted the advanced new cable shock-proofing technology both at home and abroad