预应力混凝土梁桥拓宽关键技术研究

Research on the Key Widening Technique for PC Bridge

针对沪宁高速公路扩建工程桥梁拓宽工程中,桥梁横向拓宽所遇到的关键工程技术难题,如拓宽方案、横向拼接结构设计、结构变形和沉降控制方法等若干内容进行理论分析和试验研究,研究成果为设计和施工提供了有力的技术支持,保证了沪宁高速公路扩建桥梁拓宽的施工质量。

To resolve some technique problems in extension of bridge for Huning expressway extension project,the key technique for extension of bridge such as extension scheme,design method of transverse joint structure,control method of structure relative deformation and base settlement,is theoretically discussed and tested.The research findings offers a great support for design and construction work,it also assures construction quality of the extension project.