底推钢箱拱法在双曲拱桥加固中的应用

The application of bottom pushing steel box arching method in consolidating hyperbola arch bridge

以工程实例为依托,介绍了底推钢箱拱法加固双曲拱桥的结构组成、材料要求及模型的建立,研究表明采用底推钢箱拱法加固双曲拱桥能够有效减小原结构的变形,减小后加结构的应力滞后效应,充分发挥后加材料的强度性能,达到较好的综合效果。

Based on engineering practice, it introduces structure composition, material request and setting up model of bottom pushing steel box arching method consolidating hyperbola arch bridge, research makes clear that adopting bottom pushing steel box arching method to consolidate hyperbola arch bridge can decrease deformation of original structure effectively, reduce stress lagging effect of add-on structure, it can display intensity capability add-on material and reach a good synthetic effect.