结合某在建高速公路预应力混凝土连续刚构桥梁横向拓宽拼接工程,采用实体模型对新、旧桥连接带部位在收缩徐变作用下的局部受力性能进行分析。研究成果在工程实践中取得了良好的效果,可为既有预应力混凝土连续刚构桥的横向拓宽拼接工程设计和施工方案优化提供参考。 Combined with the lateral widening splicing project of a prestressed concrete continuous rigid frame bridge under construction, the local mechanical performance under the effect of the shrinkage and creep of new and old bridge connecting belt was analyzed by solid model. The research results have achieved good results in engineering practice, which can provide references for the design and construction scheme optimization of the transverse widening splicing of the prestressed concrete continuous rigid frame bridge.