包西铁路64m双线简支箱梁设计

Design of 64 m Two-lane Simply Supported Box Girder in Bao-xi Railway

包西铁路义南洛河特大桥主桥采用64 m双线简支箱梁,是目前国内铁路架梁中最大跨度节段拼装预应力混凝土双线简支箱梁。以该桥施工图设计为依据,介绍了64 m双线简支箱梁的构造、设计及施工方法。

The 64 m two-lane simply supported box girder was used in the main bridge of the Yinan Luohe bridge, whose 64 m simply supported box girder is the largest span section consolidation prestressed concrete two-lane simply supported box girder in the current domestic railway girder. This box girder is the first nationwide. This paper is based on the bridge construction design. It introduces the structure, design and construction methods of the 64m two-lane simply supported box girder.