横张竖向预应力箱梁腹板加固新技术探索

New strengthening technology exploration of lateral tension for vertical prestress in box-girder web

为解决箱梁腹板开裂加固难的问题,提出新的"横张竖向预应力"加固方法,并运用有限元分析软件进行仿真分析,验证了其加固效果和可行性,为大跨度混凝土箱梁桥腹板开裂加固提供了新途径.

For tackling the difficult problem of box-girder web crack, coming up with a new strengthening technology Lateral Tension for Vertical Prestress, and then try to do a simulation analysis with the finite element analysis software, checking out the effect and feasibility, find a new way for the long-span prestressed concrete box-girder web crack strengthening.