It 's known that, Xihoumen cross-sea bridge's main bridge is the first split type steel box girder suspension bridge in the world, and mainly spans 1650m.
据了解，西堠门大桥的主桥是世界首座分体式钢箱梁悬索桥，主跨1650米，跨径世界第二、国内第一。
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On basis of a prestressed concrete T-type rigid frame box girder bridge, the paper compares the advantages and disadvantages of different reinforcement options.