Construction method of concrete-filled steel tube arch bridge mounting system

The invention relates to a construction method of a concrete-filled steel tube arch bridge mounting system. The construction method comprises the following construction steps: 1) preparing construction; 2) performing arch pier pouring construction; 3) connecting and positioning arch feet; 4) assembling and connecting arch ribs; 5) connecting and fixing arch rib feet; 6) mounting and positioning the wind brace; and 7) mounting and positioning the support upright. The method has the beneficial effects that the space position of the arch rib can be limited through the arch foot sleeves preset inthe arch piers, and the space positioning difficulty of the arch rib is reduced. Meanwhile, the in-pier bearing plates are preset in the arch piers, so that the influence of the arch ribs on the archpiers can be effectively reduced, and the local concentrated stress is reduced. The installed arch ribs are used as supporting stress bodies for connecting construction of the arch ribs to be installed, and the engineering qua