石板坡长江大桥复线桥大节段钢箱梁吊装、合拢技术

摘要

Reinforced concrete bridges of continuous steel structure are numerous in Chongqing, whose span is usually within 300m. To tackle the prob-lem that the single span of the multiple tracked bridge of the Yangtze River in Shibanpo reaches 330m, the combination technology of reinforced con-crete girder and steel box girder is applied and the problem of bridge's self-weight is resolved, thus, the successful construction of the bridge is ensured. Many mature technologies are applied in the construction process and many specific problems are settled. It offers some references for future situation.%钢筋混凝土连续刚构桥在重庆已很多，跨径一般在300m以内，为解决石板坡长江大桥复线桥单跨达330m问题，采用了钢筋混凝土梁和钢箱梁相结合的技术，有效减少了桥梁梁体的自重问题，保证了石板坡长江大桥复线桥顺利实施，具体实施过程中运用了许多成熟技术，解决了诸多具体问题，为以后超大跨径混凝土连续刚构桥的实施提供了许多可供参考的依据。