Reinforced concrete arch bridge construction method

Abstract

The invention discloses a reinforced concrete arch bridge construction method, which comprises the following steps of: 1, constructing a pile foundation, a pile cap, a bridge abutment body side wall and a bridge pier body; 2, erecting arch ring supports from the fourth hole to the eighth hole and from the thirteenth hole to the seventeenth hole on two sides of an arch bridge, arranging a locking system, and finally pouring concrete to arch rings of the eight holes; 3, detaching the arch ring supports in the step 2, erecting arch ring supports from the zero hole to the fourth hole and from theseventeenth hole to the twenty-first hole on the bridge abutment side, arranging a locking system and finally pouring concrete to arch rings of the eight holes; and 4, detaching the arch ring supports erected in the step 3, erecting arch ring supports from the eighth hole to the thirteenth hole in the span, arranging a locking system, pouring concrete to arch rings of the five holes, and folding the whole bridge. Main bodies of the arch ring supports have arch truss structures, a characteristic that steel bars are tensioned is utilized, the structures are firm, the middles of the structures are not required to be supported, materials are saved, the arch ring supports are convenient to detach, and constriction time is saved.

Description

technical field [0001] The present invention relates to bridge construction methods. Background technique [0002] During the construction of a reinforced concrete arch bridge, the pouring of the reinforced arch concrete circle requires erection of supports, such as figure 1 As shown, the construction bracket of the reinforced arch concrete ring in the prior art is formed by erecting the steel pipe 3 and then laying the building formwork 7. The two sides of the bracket can be supported on the abutment abutment 2 of the reinforced arch concrete ring. Part of the soil between the consolidation supports of the ring is soft, resulting in weak support structures. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a construction method for a reinforced concrete arch bridge. The arch ring support structure is simple and firm, saves materials, and at the same time, the construction method is scientific and the construction...

AI Technical Summary

Problems solved by technology

[0002] During the construction of a reinforced concrete arch bridge, the pouring of the reinforced arch concrete circle requires erection of supports, such as figure 1 As shown, the construction bracket of the reinforced arch concrete circle in the prior art is formed by erecting the steel pipe 3 and then laying the building formwork 7. The two sides of the support can be supported on the abutment abutment 2 of the reinforced arch concrete circle. Part of the soil between the consolidation supports of the circle is soft, resulting in weak support structure

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