预应力混凝土连续刚构桥是墩梁固结的连续结构,具有良好的结构受力性能、结构型式美观新颖、抗弯抗扭刚度大等特点。对于悬浇施工的连续刚构桥,随着施工阶段的进行,桥梁的悬臂长度不断增大,桥梁的宽跨比也跟随不断发生变化,结构的剪力滞变化也更加复杂。 The prestressed concrete continuous rigid frame bridge is a continuous structure of the pier and girder consolidation, has good structural force performance, novel and beautiful structural type, large torsional stiffness and flexural torsion. For the continuous rigid-frame bridge with cantilever construction, as the construction stage progresses, the cantilever length of the bridge continuously increases and the span-span ratio of the bridge also changes continuously, and the structural shear lag change is also more complicated.