Masonry wall top hinged joint for reinforcement and reconstruction

Abstract

The utility model provides a masonry wall top hinge joint for reinforcement and transformation, which can be used for reinforcement and transformation of existing masonry walls, and is quick in construction and easy to operate. The structure comprises an existing masonry wall and a structural member, wherein the structural member is arranged at the top of the masonry wall; the two sides of the top of the masonry wall are respectively provided with angle steel, one side of the angle steel clings to the bottom surface of the structural member, and the other side of the angle steel clings to the side surface of the masonry wall; arranging an opposite-pulling anchor bolt on one side of the angle steel to anchor the angle steel on a structural member; reinforcing meshes are arranged on the two sides of the masonry wall, and the tops of vertical steel bars of the reinforcing meshes are fixed to the angle steel; tie bars are arranged in the masonry wall through holes and connected with the reinforcing meshes on the two sides of the masonry wall, and the reinforcing meshes on the two sides of the masonry wall are tensioned.

Description

Technical Field

[0001] The utility model relates to a top hinged node of a masonry wall for reinforcement and reconstruction. Background Art

[0002] In the renovation and reinforcement of existing buildings, it is inevitable that existing masonry walls will sink and deform during the long-term use, and the connection between the top of the wall and the existing structural members will have defects such as cracks and damage. There are many practices for the connection between the top of the masonry wall and the structural beam and slab in the national standard atlas. In "Reinforcement and Repair of Brick-Concrete Structures" (15G611) P56, the connection between the additional wall reinforcement and the original floor slab adopts the method of overlapping through the floor slab. Combined with the characteristics of the reinforcement and renovation of existing buildings, the construction workload of the node method in this atlas is large and difficult to operate. In "Masonry Infill Wall Structure Construction" (12G614-1) P16, the method of using inclined top tightening or C-shaped iron pieces at the top of the wall is difficult to implement in the renovation project of existing buildings. The use of U-shaped and L-shaped iron pieces in "Autoclaved Aerated Concrete Block and Plate Construction" (13J104) Pages A51 and B15 can only be used on the top of the new wall, and cannot be implemented for the reinforcement of the top of the existing masonry wall. Utility Model Content

[0003] The utility model aims to overcome the above-mentioned deficiencies in the prior art and to provide a masonry wall top hinged node with a reasonable structural design for reinforcement and reconstruction, which can be used for reinforcement and reconstruction of existing masonry walls and is quick and easy to operate.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problem is: a top hinged node of a masonry wall for reinforcement and reconstruction, comprising an existing masonry wall and a structural member, wherein the structural member is arranged at the top of the masonry wall; the characteristics are: angle steels are arranged on both sides of the top of the masonry wall, one side of the angle steel is close to the bottom surface of the structural member, and the other side is close to the side surface of the masonry wall; a tension anchor bolt is arranged on one side of the angle steel to anchor it to the structural member; steel meshes are arranged on both sides of the masonry wall, and the top of the vertical steel bars of the steel meshes is fixed to the angle steels; tie bars are arranged in the perforations of the masonry wall, and the tie bars are connected to the steel meshes on both sides of the masonry wall to tighten the steel meshes on both sides of the masonry wall.

[0005] The short side of the angle steel of the utility model is closely attached to the bottom surface of the structural member, and the long side is closely attached to the side surface of the masonry wall.

[0006] The utility model arranges tension anchor bolts on the short sides of the angle steel to anchor the angle steel on the structural member.

[0007] The utility model provides the tie bars by perforating holes at the mortar joints of the masonry wall.

[0008] The utility model adopts structural adhesive to fill and compact the gap between the angle steel and the structural member.

[0009] The utility model provides a cement mortar layer on the outside of the masonry wall and the angle steel.

[0010] Compared with the prior art, the utility model has the following advantages and effects:

[0011] 1. The utility model can solve the problem of reinforcing the defects of the top of the original wall in the reconstruction of existing buildings by combining the on-site installation conditions. At the same time, by setting the hinged node on the top of the wall, the connection between the top of the newly built wall and the existing structural components is strengthened.

[0012] 2. The angle steel, anchor bolts and steel bars used in the utility model are all commonly used building materials. They do not need to be customized and purchased, and the cost is cheap. Secondly, there is no concrete mixing and pouring process in the whole construction process, and there is no formwork, scaffolding and other types of work. The construction site is clean and tidy, reducing safety hazards. After installation, it can be combined with decoration to enter the next process. The construction is quick and easy to operate.

[0013] 3. The utility model can be used to reinforce the load-bearing walls of masonry structures and to repair defects in the filling walls of frame structures. It can also be extended to connect the tops of explosion-proof walls and wind-resistant walls that are subject to horizontal forces, and has good technical and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0016] The embodiment of the utility model comprises an existing masonry wall 7 and an existing structural member 8. The structural member 8 is arranged on the top of the masonry wall 7. The structural member 8 is a building floor slab or a beam.

[0017] Angle steels 1 are arranged on both sides of the top of the masonry wall 7, and the steel grade of the angle steels 1 is Q235. The short side of the angle steel 1 is close to the bottom surface of the structural member 8, and the long side is close to the side surface of the masonry wall 7, showing that the top of the masonry wall 7 is clamped by the angle steels 1.

[0018] Tension anchor bolts 2 are set on the short side of angle steel 1 to anchor it on structural member 8. When the thickness of structural member 8 is less than 150mm, M12 perforated tension anchor bolts are used with a spacing of 500mm; when the thickness of structural member 8 is greater than 150mm, M12 post-planted and expanded mechanical anchor bolts are used to anchor into the floor slab with a spacing of 500mm. After the anchoring is completed, the gap between angle steel 1 and structural member 8 is filled with structural glue for compaction.

[0019] In order to further strengthen the connection between the angle steel 1 and the masonry wall 7, a ɸ6@200 steel mesh 3 is installed on both sides of the masonry wall 7. The top of the vertical steel bars 5 of the steel mesh 3 is welded to the angle steel 1, and the welding length is 60mm. Before installing the steel mesh 3, the original plaster layer of the masonry wall 7 is chiseled off until the bricks of the masonry wall 7 are exposed. The ɸ6@600 tie bars 4 are punched at the mortar joints of the masonry wall 7. The tie bars 4 are connected to the steel mesh 3 on both sides of the masonry wall 7, and the steel mesh 3 on both sides of the masonry wall 7 is tightened to make the steel mesh 3 and the masonry wall 7 fit tightly.

[0020] After the construction of the steel mesh 3 is completed, the masonry wall 7 and the exterior of the angle steel 1 are protected by a 30 mm thick cement mortar layer 6 .

[0021] In addition, it should be noted that the shapes and names of the parts and components of the specific embodiments described in this specification may be different, and the above content described in this specification is only an example of the structure of the utility model. All equivalent changes or simple changes made based on the structure, features and principles described in the patent concept of the utility model are included in the protection scope of the utility model patent. Technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar manner, as long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the protection scope of the utility model.

Claims

1. A top hinged node for reinforcing and renovating a masonry wall, comprising an existing masonry wall and a structural member, wherein the structural member is arranged on the top of the masonry wall; characterized in that: Angle steels are provided on both sides of the top of the masonry wall, one side of the angle steel is close to the bottom surface of the structural member, and the other side is close to the side surface of the masonry wall; tension anchor bolts are provided on one side of the angle steel to anchor it to the structural member; steel meshes are provided on both sides of the masonry wall, and the top of the vertical steel bars of the steel meshes is fixed to the angle steels; tie bars are provided in the perforations of the masonry wall, and the tie bars are connected to the steel meshes on both sides of the masonry wall to tighten the steel meshes on both sides of the masonry wall.

2. The top hinged node of the masonry wall for reinforcement and reconstruction according to claim 1 is characterized in that: The short side of the angle steel is close to the bottom surface of the structural member, and the long side is close to the side of the masonry wall.

3. The top hinged node of the masonry wall for reinforcement and reconstruction according to claim 1, characterized in that: Tension anchor bolts are set on the short sides of the angle steel to anchor it to the structural members.

4. The top hinged node of the masonry wall for reinforcement and reconstruction according to claim 1, characterized in that: The tie bars are arranged by punching holes in the mortar joints of the masonry wall.

5. The top hinged node of the masonry wall for reinforcement and reconstruction according to claim 1, characterized in that: Structural adhesive is used to fill and compact the gaps between angle steel and structural parts.

6. The top hinged node of the masonry wall for reinforcement and reconstruction according to claim 1, characterized in that: A cement mortar layer is provided on the outside of the masonry wall and the angle steel.

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