主跨加劲梁为钢箱梁，边跨加劲梁为预应力混凝土箱梁。
The stiffening beams of the side spans are prestressed concrete box beams.
预应力混凝土箱梁以其优良的截面性质在梁桥中占据了主要地位。
With its excellent section characters, the prestressed concrete box beam plays a main role in the girder bridge.
滨州黄河大桥主桥是三塔预应力混凝土斜拉桥，主梁为预应力混凝土箱梁。
Binzhou Yellow River bridge is a three-tower cable-stayed bridge with prestressed concrete girders.
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