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某城市跨越长江的公路大桥目前正在紧张施工。该桥共7墩8孔。桥型为予应力悬臂 T 型刚构加予应力挂梁,横断面为分离双箱。其中二个大 T—174米,悬臂分20块,块件最重为148.4吨;五个小 T—138米,悬臂分14块,块件最重为102吨。施工采用斜拉式挂兰悬臂现浇。挂兰行走使用聚四氟乙烯板与不锈钢板摩擦滑移,代替惯用的火车轮装置。通过试验于78年底投入施工使用,获得成功。现在五个小 T 悬臂已经完成。
A city across the Yangtze River highway bridge is currently under construction. The bridge a total of 7 pier 8 holes. The bridge type is a prestressed cantilever T-shaped rigid frame plus stress beams, the cross-section for the separation of double boxes. Among them, two large T-174 meters, with 20 cantilevers, the heaviest piece is 148.4 tons; five small T-138 meters, cantilever points 14 pieces, the most massive pieces of 102 tons. Construction using oblique pull hanging blue cantilever casting. Hanging blue walking Teflon plate and stainless steel friction slip, instead of the usual train wheel device. Through the test put into construction at the end of 78 to use, to be successful. Now five small T cantilever has been completed.