Integrated pouring formwork for sound barrier foundation and box girder

Abstract

The invention discloses an integrated pouring formwork for a sound barrier foundation and a box girder. The outer formwork of the sound barrier foundation is formed by extending and heightening the outer formwork of the box girder as a whole, and the inner formwork of the sound barrier foundation adopts the same length as the outer formwork of the sound barrier foundation. Rectangular steel plates, the outer formwork of the sound barrier foundation and the inner formwork of the sound barrier foundation are connected by a number of П-shaped connecting members arranged at equal intervals along the length direction, and the П-shaped connecting member is laminated by two oppositely arranged strip angle steels through the top surface. It is spliced ​​together with bolts, the facade of one piece of strip angle steel is welded to the facade of the outer formwork of the sound barrier foundation, and the facade of the other piece of strip angle steel is welded to the facade of the inner formwork of the sound barrier foundation. Eliminate the external grinding process of the sound barrier foundation, reduce high-altitude edge operations, and reduce safety risks; reduce the number of formwork installation and concrete pouring, save construction time and labor input, and improve operating efficiency and engineering benefits.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, in particular to an integrated pouring formwork for a sound barrier foundation and a box girder. Background technique [0002] Sound barriers are widely used in municipal transportation facilities such as urban rail transit and expressways, which can absorb and reduce noise and reduce the impact of traffic noise on urban areas. [0003] Taking bridges as an example, the currently widely used technology is that after the box girder is poured and hardened to a certain strength, then steel bars are bound on the flange of the box girder, the sound barrier foundation formwork is installed, and the sound barrier foundation is poured. There are two main defects. One is that the joint between the sound barrier foundation and the box girder is easy to form cement slurry blocks on the facade due to the leakage of formwork, and there is a safety risk of high-altitude edge operations when grindin...

AI Technical Summary

Problems solved by technology

There are two main defects. One is that the joint between the sound barrier foundation and the box girder is easy to form cement slurry blocks on the facade due to the leakage of formwork, and there is a safety risk of high-altitude edge operations when grinding the cement slurry blocks on the exterior facade in the later stage; the other is that The construction of the sound barrier foundation needs to be carried out after the construction of the box girder is completed, which increases the construction process and construction period, increases the investment of time and labor, and increases the project cost

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