Plugging structure for slab joint of prestressed concrete laminated slab of steel pipe truss

Abstract

The utility model discloses a slab joint plugging structure for prestressed concrete laminated slabs of a steel pipe truss, which is characterized in that a plurality of I-shaped galvanized steel wire meshes which are connected through steel wire mesh connecting mesh strips are uniformly distributed between two laminated slabs; each I-shaped galvanized steel wire mesh sheet is formed by integrally connecting a vertical steel wire mesh sheet, a long transverse steel wire mesh sheet at the upper end of the vertical steel wire mesh sheet and a short transverse steel wire mesh sheet at the lower end of the vertical steel wire mesh sheet, the vertical steel wire mesh sheet is arranged between the two laminated plates, the long transverse steel wire mesh sheet is arranged at the upper ends of the two laminated plates, and a concrete layer is formed above the long transverse steel wire mesh sheet and the short transverse steel wire mesh sheet; the short transverse steel wire meshes are arranged in the slab joints, and the polymer modified cement mortar layer, the alkali-resistant gridding cloth layer and the putty layer are arranged, so that the adhesive force and the durability of polymer modified cement mortar are improved, the polymer modified cement mortar is not easy to fall off, and potential quality hazards are avoided; and the two laminated slabs are spliced to extrude the vertical steel wire meshes, and concrete is poured above the long transverse steel wire meshes, so that good fixation is achieved.

Description

Technical Field

[0001] The utility model relates to a steel tube truss prestressed concrete composite plate seam blocking structure, belonging to the technical field of building construction. Background Art

[0002] At present, the seams of steel tube truss prestressed concrete composite slabs (PK3 composite slabs for short) are sealed by smoothing with elastic putty or cement mortar. If there are shrinkage seams after drying, a layer of elastic putty or polymer modified mud mortar is added. This sealing structure will crack after the water in the elastic putty or cement mortar evaporates, and the elastic putty or cement mortar will easily crack and fall off if there is no object attached to the seams.

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a steel tube truss prestressed concrete composite plate seam sealing structure. Utility Model Content

[0004] The technical solution provided by the utility model is as follows: a steel tube truss prestressed concrete composite plate seam blocking structure, which includes two composite plates, characterized in that a plurality of I-shaped galvanized steel wire meshes are evenly distributed between the two composite plates, and the upper and lower ends of the I-shaped galvanized steel wire meshes are connected by steel wire mesh connecting strips, and each I-shaped galvanized steel wire mesh is composed of a vertical steel wire mesh, a long horizontal steel wire mesh at the upper end of the vertical steel wire mesh, and a short horizontal steel wire mesh at the lower end of the vertical steel wire mesh. The upper and lower ends of the mesh are connected to the steel wire mesh connecting strips, the vertical steel wire mesh is placed between the two superimposed plates, the long transverse steel wire mesh is arranged at the upper ends of the two superimposed plates, concrete is poured on the long transverse steel wire mesh and the upper ends of the two superimposed plates to form a concrete layer, the short transverse steel wire mesh is arranged in the plate seam at the lower part between the two superimposed plates, the plate seam is filled with polymer-modified cement mortar to form a polymer-modified cement mortar layer, an alkali-resistant mesh cloth layer is arranged at the lower end of the polymer-modified cement mortar layer, and a putty layer is arranged at the alkali-resistant mesh cloth layer and the lower ends of the two superimposed plates.

[0005] Furthermore, the distance between the I-shaped galvanized steel wire mesh pieces is 250 mm, the length of the long transverse steel wire mesh piece is 80 mm, and the length of the short transverse steel wire mesh piece is 12 mm.

[0006] Furthermore, the thickness of the putty layer is 2-3 mm.

[0007] The beneficial effects of the utility model are as follows: the utility model is provided with an I-shaped galvanized steel wire mesh between two steel tube truss prestressed concrete composite plates, the I-shaped galvanized steel wire meshes are connected by steel wire mesh connecting strips, the vertical steel wire mesh is squeezed between the two spliced ​​composite plates, the long transverse steel wire mesh is placed above the composite plate, the short transverse steel wire mesh is placed in the plate seam at the bottom of the composite plate, and the polymer modified cement mortar is filled in the plate seam to form a polymer modified cement mortar layer, and an alkali-resistant mesh cloth layer and a putty layer are provided, so that the filler polymer modified cement mortar can be attached to the short transverse steel wire mesh of the galvanized steel wire mesh, and the short transverse steel wire mesh provides the filler with tensile strength, increases the attachment area of ​​the polymer modified cement mortar, increases the adhesion and durability of the polymer modified cement mortar, is not easy to fall off, and avoids quality risks. The two composite plates are spliced ​​and squeezed to form the vertical steel wire mesh and the concrete is poured on the long transverse steel wire mesh, which plays a good role in fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model;

[0009] Figure 2 It is a top view of the utility model;

[0010] Figure 3 It is a schematic diagram of the connection structure between the I-shaped galvanized steel wire mesh pieces of the utility model.

[0011] In the figure: 1. composite board; 2. I-shaped galvanized steel wire mesh; 3. concrete layer; 4. steel wire mesh connecting strips; 5. polymer modified cement mortar layer; 6. alkali-resistant mesh cloth layer; 7. putty layer; 21. long horizontal steel wire mesh; 22. vertical steel wire mesh; 23. short horizontal steel wire mesh. DETAILED DESCRIPTION

[0012] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings:

[0013] like Figure 1-Figure 3As shown, a steel tube truss prestressed concrete composite plate seam blocking structure comprises two composite plates 1, a plurality of I-shaped galvanized steel wire meshes 2 are evenly distributed between the two composite plates 1, the upper and lower ends of the I-shaped galvanized steel wire meshes 2 are connected by a steel wire mesh connecting strip 4, the distance between the two I-shaped galvanized steel wire meshes 2 is 250 mm, each I-shaped galvanized steel wire mesh 2 is composed of a vertical steel wire mesh 22, a long horizontal steel wire mesh 21 at the upper end of the vertical steel wire mesh 22, and a short horizontal steel wire mesh 23 at the lower end of the vertical steel wire mesh 22, the upper and lower ends of the vertical steel wire mesh 22 are connected to the steel wire mesh connecting strip 4, and the vertical The vertical steel wire mesh 22 is placed between the two superimposed plates 1, the two superimposed plates 1 are spliced ​​with each other and extrude the vertical steel wire mesh 22, the long transverse steel wire mesh 21 is 80 mm long and is arranged at the upper ends of the two superimposed plates 1, concrete is poured on the long transverse steel wire mesh 21 and the upper ends of the two superimposed plates 1 to form a concrete layer 3, the short transverse steel wire mesh 23 is 12 mm long and is arranged in the plate seam at the lower part between the two superimposed plates 1, the plate seam is filled with polymer modified cement mortar to form a polymer modified cement mortar layer 5, an alkali-resistant mesh cloth layer 6 is arranged at the lower end of the polymer modified cement mortar layer 5, and the alkali-resistant mesh cloth layer 6 and the lower ends of the two superimposed plates 1 are coated with 2-3 mm putty to form a putty layer 7.

[0014] It should be understood that the parts not elaborated in detail in this specification belong to the prior art. The above embodiments are only descriptions of the preferred implementation methods of the utility model, and are not intended to limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements made by ordinary engineers and technicians in this field to the technical solution of the utility model should fall within the protection scope determined by the claims of the utility model.

Claims

1. A steel tube truss prestressed concrete composite plate seam sealing structure, which includes two composite plates, characterized in that A number of I-shaped galvanized steel wire meshes are evenly distributed between the two superimposed plates. The upper and lower ends of the I-shaped galvanized steel wire meshes are connected by steel wire mesh connecting strips. Each I-shaped galvanized steel wire mesh is composed of a vertical steel wire mesh, a long transverse steel wire mesh at the upper end of the vertical steel wire mesh, and a short transverse steel wire mesh at the lower end of the vertical steel wire mesh. The upper and lower ends of the vertical steel wire mesh are connected to the steel mesh connecting strips. The vertical steel wire mesh is placed between the two superimposed plates, the long transverse steel wire mesh is arranged at the upper ends of the two superimposed plates, concrete is poured on the long transverse steel wire mesh and the upper ends of the two superimposed plates to form a concrete layer, the short transverse steel wire mesh is arranged in the plate seam at the lower part between the two superimposed plates, the plate seam is filled with polymer-modified cement mortar to form a polymer-modified cement mortar layer, an alkali-resistant mesh cloth layer is arranged at the lower end of the polymer-modified cement mortar layer, and a putty layer is arranged at the alkali-resistant mesh cloth layer and the lower ends of the two superimposed plates.

2. The steel tube truss prestressed concrete composite slab seam sealing structure according to claim 1 is characterized in that The distance between the I-shaped galvanized steel wire mesh pieces is 250 mm, the length of the long transverse steel wire mesh piece is 80 mm, and the length of the short transverse steel wire mesh piece is 12 mm.

3. The steel tube truss prestressed concrete composite slab seam sealing structure according to claim 1 is characterized in that The thickness of the putty layer is 2-3 mm.

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