Concrete old house reinforcing structure

Abstract

The utility model relates to the technical field of building construction, and provides an old concrete house reinforcing structure which comprises a reinforcing mesh composed of transverse reinforcing steel bars and vertical reinforcing steel bars, a plurality of main anchoring rods are arranged on the two sides of an old wall in the width direction at intervals in the height direction, and positioning structures used for clamping the transverse reinforcing steel bars are arranged at the outer ends of the main anchoring rods. Positioning concrete plates are connected to the two sides of the old wall body in the wall face width direction in an anchoring mode, and the end faces of the transverse steel bars abut against the positioning concrete plates. The reinforcing mesh can be positioned only by hanging the reinforcing mesh on the main anchoring rod and limiting the reinforcing mesh between the two positioning concrete plates, the reinforcing mesh and the main anchoring rod do not need to be welded or bound, operation is more convenient, the positioning structure and the positioning concrete plates can be prefabricated in advance, efficiency can be improved, and the construction period can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a concrete old house reinforcement structure. Background Art

[0002] Traditional masonry houses (especially self-built houses in rural areas) usually have walls and columns made of blocks (such as bricks) and mortar as the main load-bearing parts. Due to the delay in popularizing masonry structures in seismic codes or low seismic fortification requirements, a large number of masonry structures have not undergone any seismic fortification or have insufficient seismic fortification requirements, so a large number of masonry houses are facing reinforcement and reconstruction.

[0003] The reinforcement method for the walls of old houses is mainly to pour reinforced concrete on one or both sides of the wall or to thicken the wall by hanging mesh spraying concrete, thereby improving the stability and bearing capacity of the wall. The method of pouring reinforced concrete requires the erection of formwork and formwork support, and the pouring wall requires a certain thickness (if it is thin, it will be difficult to tie the steel cage), the construction requires a large space, and the construction site has certain limitations. The method of hanging mesh spraying concrete only requires hanging the steel mesh and then spraying concrete, which requires very little space in the construction site, so this method is becoming more and more widely used.

[0004] At present, in the mesh spraying concrete method, a number of anchor rods are anchored in the old wall, and the steel mesh is hung on the anchor rods. The steel mesh and the anchor rods are fixed by binding or welding. However, the steel mesh is not fixed before being anchored or welded to the anchor rods, and binding or welding has a certain difficulty. Moreover, it can only be bound or welded one by one at the contact points after the steel mesh is hung, which is inefficient. Utility Model Content

[0005] The purpose of the utility model is to provide a concrete old house reinforcement structure to solve the above-mentioned defects of the prior art.

[0006] The embodiments of the present invention are implemented by the following technical solutions:

[0007] A reinforcement structure for an old concrete house, comprising a steel mesh composed of transverse steel bars and vertical steel bars, a plurality of main anchor rods are arranged at intervals along the height direction on both sides of the wall surface in the width direction of the old wall, and a positioning structure for clamping the transverse steel bars is arranged at the outer end of the main anchor rod;

[0008] Positioning concrete plates are anchored and connected on both sides of the wall width direction of the old wall, and the end faces of the transverse reinforcements are in contact with the positioning concrete plates.

[0009] Optionally, the positioning structure includes two positioning rods extending upward, the positioning rods are fixedly connected to the main anchor rods, a slot is formed between the two positioning rods, and the transverse steel bar is placed in the slot.

[0010] Optionally, the positioning rod is a screw rod and is connected to the main anchor rod through threads.

[0011] Optionally, a plurality of reinforcing steel bars are arranged in a rectangular array on the wall surface of the old wall, the reinforcing steel bars are anchored and connected to the old wall, and the reinforcing steel bars pass through the meshes of the steel mesh without contacting the steel mesh.

[0012] Optionally, a plurality of auxiliary anchor rods are provided at intervals along the length direction on the top of the wall surface of the old wall, and the outer ends of the auxiliary anchor rods are also provided with the positioning structure for clamping the transverse reinforcement.

[0013] Optionally, a foundation trench is provided at the bottom of the old wall, the lower end of the steel mesh extends into the foundation trench, and a concrete seat is cast in the foundation trench.

[0014] Optionally, both the positioning concrete slab and the concrete seat are made of ECC.

[0015] The technical solution of this utility model has at least the following advantages and beneficial effects: in this utility model, the transverse steel bars of the steel mesh of the positioning structure clamping column set on the main anchor rod are used to realize the vertical positioning of the steel mesh and the positioning perpendicular to the wall direction, and the positioning concrete plate connected by anchoring abuts against the end face of the transverse steel bars to realize the transverse positioning of the steel mesh. Compared with the prior art, this utility model only needs to hang the steel mesh on the main anchor rod and limit it between two positioning concrete plates to realize the positioning of the steel mesh, without welding or tying the steel mesh to the main anchor rod, which is more convenient to operate, and the positioning structure and the positioning concrete plate can be prefabricated in advance, which can improve efficiency and shorten the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A structural schematic diagram of a concrete old house reinforcement structure provided by the utility model;

[0018] Figure 2 for Figure 1 A partial view of the

[0019] Figure 3 is a schematic diagram of the structure of the main anchor rod;

[0020] Figure 4 for Figure 2 A magnified view of point B;

[0021] Icons: 1-old wall, 2-steel mesh, 201-transverse steel bars, 202-vertical steel bars, 3-main anchor rods, 4-positioning rods, 5-slots, 6-positioning concrete slabs, 7-connecting anchor rods, 8-reinforcement steel bars, 9-auxiliary anchor rods, 10-foundation trench. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "vertical" and the like appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the application is usually placed when in use. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0025] refer to Figure 1-4 A concrete old house reinforcement structure includes a steel mesh 2 composed of transverse steel bars 201 and vertical steel bars 202. It should be understood that the intersections of the transverse steel bars 201 and the vertical steel bars 202 are welded or tied, and the outermost intersections around them should be fully welded or fully rolled, that is, each intersection should be welded or tied.

[0026] A number of main anchor rods 3 are arranged at intervals along the height direction on both sides of the wall width direction of the old wall 1, and a positioning structure for clamping the transverse steel bar 201 is arranged at the outer end of the main anchor rod 3; positioning concrete plates 6 are anchored and connected on both sides of the wall width direction of the old wall 1, and the end faces of the transverse steel bars 201 are in contact with the positioning concrete plates 6. Specifically, the positioning concrete plates 6 can be prefabricated in advance and connected to the old wall 1 through a number of connecting anchor rods 7. High-strength nuts are welded at the outer ends of the connecting anchor rods 7 to press the positioning concrete plates 6. The positioning concrete plates 6 can reserve holes for accommodating high-strength nuts. The holes can finally be sealed with concrete and the joints can be smoothed to avoid affecting the appearance.

[0027] It is worth noting that the transverse steel bars 201 of the steel mesh 2 of the positioning structure clamping column set on the main anchor rod 3 are used to realize the vertical positioning of the steel mesh 2 and the positioning perpendicular to the wall direction. The positioning concrete plate 6 connected by anchoring abuts against the end surface of the transverse steel bars 201 to realize the transverse positioning of the steel mesh 2. Compared with the prior art, the steel mesh 2 can be positioned by simply hanging it on the main anchor rod 3 and confining it between two positioning concrete plates 6. There is no need to weld or tie the steel mesh 2 to the main anchor rod 3, which is more convenient to operate. In addition, the positioning structure and the positioning concrete plate 6 can be prefabricated in advance, which can improve efficiency and shorten the construction period.

[0028] It should be understood that in actual applications, after the steel mesh 2 is hung, concrete is sprayed to form a reinforcement layer (not shown), the thickness of the positioning concrete slab 6 is slightly equal to the thickness of the reinforcement layer, and the joint between the reinforcement layer and the positioning concrete slab 6 is smoothed at the end of the construction to avoid affecting the appearance.

[0029] In this embodiment, the positioning structure includes two positioning rods 4 extending upward, the positioning rods 4 are fixedly connected to the main anchor rod 3, a slot 5 is formed between the two positioning rods 4, and the transverse reinforcement 201 is placed in the slot 5. The width of the slot 5 can be slightly larger than the diameter of the transverse reinforcement 201, so that the transverse reinforcement 201 can be easily inserted therein. Furthermore, the positioning rod 4 is a screw rod and is connected to the main anchor rod 3 by threads, which is convenient for installation. Of course, the above-mentioned form of the positioning structure is only an option of this embodiment, not a limitation. In other embodiments of the utility model, the positioning structure can also be in other forms, such as setting a groove at the outer end of the main anchor rod 3, and the groove supports and clamps the transverse reinforcement 201, which can also achieve the above-mentioned function.

[0030] Furthermore, in this embodiment, a plurality of auxiliary anchor rods 9 are arranged at intervals along the length direction on the top of the wall surface of the old wall 1, and the outer ends of the auxiliary anchor rods 9 are also provided with positioning structures for clamping the transverse steel bars 201. Such an arrangement provides more support points for the steel mesh 2, making the structure more stable. In addition, it is easy to understand that the main anchor rods 3 and the auxiliary anchor rods 9 can be tubular or solid.

[0031] On the basis of the above, the present embodiment has also made the following improvements: the wall surface of the old wall 1 is arranged with a plurality of reinforcing steel bars 8 in a rectangular array, and the reinforcing steel bars 8 are anchored to the old wall 1. The reinforcing steel bars 8 pass through the mesh holes of the steel mesh 2 and do not contact the steel mesh 2. The arrangement of the reinforcing steel bars 8 improves the vertical bearing effect of the reinforcement layer. In addition, it should be understood that the spacing between the reinforcing steel bars 8 and the adjacent transverse steel bars 201 thereunder should be greater than the depth of the above-mentioned slot 5 to ensure that the steel mesh 2 can be smoothly inserted into the slot 5.

[0032] A foundation trench 10 is provided at the bottom of the old wall 1, and the lower end of the steel mesh 2 extends into the foundation trench 10. A concrete seat (not shown) is poured in the foundation trench 10. In actual application, before spraying the reinforcement layer, a concrete seat is first poured in the foundation trench 10, which is equivalent to pre-burying the steel mesh 2 in the foundation trench 10 in advance, thereby improving the bearing effect of the steel mesh 2.

[0033] In this embodiment, the positioning concrete plate 6 and the concrete seat are both made of ECC, and the reinforcement layer can also be made of ECC. It is worth mentioning that ECC is commonly known as engineering viscous cement, also known as bendable cement. This cement is about 40% lighter than conventional cement, and its toughness is about 500 times higher than conventional cement. The most obvious feature is that it can withstand considerable pressure in a bent state. Because the material contains specially made polymer fiber particles, ECC cement can bend without breaking under a large pressure.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concrete old house reinforcement structure, comprising a steel mesh composed of transverse steel bars and vertical steel bars, characterized in that: A plurality of main anchor rods are arranged at intervals along the height direction on both sides of the wall surface in the width direction of the old wall, and a positioning structure for clamping the transverse steel bars is arranged at the outer end of the main anchor rod; Positioning concrete plates are anchored and connected on both sides of the wall width direction of the old wall, and the end faces of the transverse reinforcements are in contact with the positioning concrete plates.

2. The concrete old building reinforcement structure according to claim 1 is characterized in that: The positioning structure includes two positioning rods extending upwards, the positioning rods are fixedly connected to the main anchor rods, a slot is formed between the two positioning rods, and the transverse steel bars are placed in the slot.

3. The concrete old building reinforcement structure according to claim 2 is characterized in that: The positioning rod is a screw rod and is connected to the main anchor rod through threads.

4. The concrete old building reinforcement structure according to claim 1 is characterized in that: A plurality of reinforcing steel bars are arranged in a rectangular array on the wall surface of the old wall. The reinforcing steel bars are anchored and connected to the old wall. The reinforcing steel bars pass through the meshes of the steel mesh and do not contact the steel mesh.

5. The concrete old building reinforcement structure according to any one of claims 1 to 4, characterized in that: A plurality of auxiliary anchor rods are arranged at intervals along the length direction on the top of the wall surface of the old wall, and the outer ends of the auxiliary anchor rods are also provided with the positioning structure for clamping the transverse reinforcement.

6. The concrete old building reinforcement structure according to any one of claims 1 to 4, characterized in that: A foundation trench is provided at the bottom of the old wall, the lower end of the steel mesh extends into the foundation trench, and a concrete seat is poured in the foundation trench.

7. The concrete old building reinforcement structure according to claim 6 is characterized in that: The positioning concrete slab and the concrete seat are both made of ECC.

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