【摘要】 预应力混凝土连续箱梁是一种受力合理的桥梁,但也是一种施工精度要求很高的结构。如何对箱梁施工过程的每一步进行控制,确保箱梁的线形,是该类桥梁施工的关键和难点,也是保证箱梁安全受力的先决条件,因此在施工过程中需给予高度重视。更多还原

【Abstract】 The prestressed concrete serial box girder is a kind of bridge wit h reasonable pressed,and a kind of structure with high construction precision. H ow to control all steps of box girder construction and ensure the line style of box girder,is the key and difficulty to this kind of bridge construction,and is the precondition to keep box girder in safety. Therefore,it should be paid much attention.更多还原