A joint grout stop device for steel-concrete combined section and its construction method

Abstract

The invention discloses a joint grouting-stopping device for a steel-concrete combined section and a construction method thereof, and relates to the technical field of joint grouting-stopping construction. The joint grouting-stopping device for the steel-concrete combined section and the construction method thereof aim at solving the problem that when a steel structure of the steel-concrete combined section is mounted, a hanging basket and a side formwork are both dismantled, and no good grouting-stopping measure is set to ensure the concrete construction quality. According to the technical key points, the joint grouting-stopping device comprises an upper wing plate; a lower wing plate is arranged below the upper wing plate parallelly, the centers of the upper wing plate and the lower wingplate are connected with a vertically-arranged supporting plate, the lower wing plate is in a U shape, and an opening of the lower wing plate faces the upper wing plate; and the lower wing plate is formed by manufacturing and machining a polyurethane-type water swelling elastic waterproof material. During construction, the supporting plate and the lower wing plate are clamped into the joint, thenthe upper wing plate is fixed to the two sides of the joint, the lower wing plate is bent towards the upper wing plate under the action of the downward pressing force to closely abut against the twoside walls of the joint, and accordingly the grouting-stopping effect can also be ensured while construction is facilitated.

Description

technical field

[0001] The invention relates to the technical field of joint grouting construction, in particular to a joint grouting device for a steel-concrete joint section and a construction method thereof. Background technique

[0002] The steel-concrete structure is a mixed structure of steel and concrete, including the frame-core tube structure composed of the peripheral steel frame or steel concrete, steel tube concrete frame and reinforced concrete core tube, and the peripheral steel frame tube or steel concrete, steel tube concrete frame tube A tube-in-tube structure composed of a reinforced concrete core tube.

[0003] At present, in order to prevent the joint grouting of the hanging construction of the express hanging basket of the long-span continuous steel-concrete mixed girder bridge, one end of the side form of the hanging basket is usually covered on the surface of the poured block concrete, and then passed through the poured block. The reserved holes on th...

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