A Construction Method of Filling on the Arch of Double Curved Arch Bridge

Abstract

The invention discloses a construction method of an arch filler of a two-way curved arch bridge; the arch filler is divided into a plurality of casting sections in the longitudinal direction of a bridge; a support template is mounted at the casting tail end of each casting section; concrete casting construction is performed on the initial casting section of the bridge in the longitudinal directionof the bridge; a support template at the tail end of the casting section is removed after the concrete of the initial casting section is initially set; concrete casting construction of the next casting section is performed; a support template at the tail end of the casting section is removed after concrete of the next casting section is initially set till the casting construction of all the casting sections is completed. The two-way curved arch bridge is reinforced and maintained by reducing the self weight of the arch filler, the load grade, the traveling comfort and the structural durability can be improved, the construction is simple and convenient, the quality is controllable, the bridge maintaining cost is reduced, and the reinforcing and maintaining effect is remarkable. The bridgeappearance is not changed, and the construction method has significance for reinforcing and maintaining the two-way curved arch bridge with cultural relics quality and historical value.

Description

technical field [0001] The invention relates to the technical field of bridge construction, in particular to a construction method for fillers on double-curved arch bridge arches. Background technique [0002] The double-curved arch bridge is a kind of bridge structure independently invented by my country in the 1960s and 1970s in combination with a specific historical period. The main arch circle is composed of main arch ribs, arch waves and transverse beams, and the arch buildings are generally composed of abdominal arch walls or columns, abdominal arch waves, arch fillers and bridge deck systems. Because its shape is curved in both vertical and horizontal directions, it is called a double-curved arch bridge. Double-curved arch bridges have been widely promoted and applied throughout the country due to their characteristics of saving materials, low cost, simple construction, and beautiful appearance. [0003] The filler on the arch is used as the filler for the bridge de...

AI Technical Summary

Problems solved by technology

This kind of arch filling has the disadvantages of low strength, poor integrity, and poor waterproof performance. Under long-term vehicle loads and rain erosion, it will lead to uneven bridge decks, cracks in side walls, spalling of reinforced concrete in the main arch ring, and reduced bearing capacity. and other diseases seriously affect the structural safety, structural durability and driving comfort, and must be repaired

The traditional reinforcement and maintenance method is mainly to increase the section of the main arch ring. Although it can increase the bearing capacity of the main arch ring, it will increase the self-weight of the substructure. When the reinforcement of the substructure is not available, this reinforcement method cannot increase the load level, and Driving comfort on the bridge deck cannot be improved

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