Sandwich wall structure

Abstract

The utility model discloses a sandwich wall structure, and relates to the technical field of constructional engineering. Comprising a first precast slab, the first precast slab is detachably connected with a second precast slab, a gap is reserved between the first precast slab and the second precast slab, a plurality of steel bars are arranged in the gap, and concrete is poured in the gap; the two sides of the end, facing the second prefabricated slab, of the first prefabricated slab are fixedly connected with first fixing blocks correspondingly, the first fixing blocks are detachably connected with second fixing blocks, and the second fixing blocks are fixedly connected with the second prefabricated slab. The gap between the first precast slab and the second precast slab can be effectively sealed through the first fixing block and the second fixing block, and poured concrete cannot leak slurry from the two sides between the first precast slab and the second precast slab; and meanwhile, the first prefabricated slab and the second prefabricated slab can be effectively connected through the first fixing block and the second fixing block, and the overall strength is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building engineering, in particular to a sandwich wall structure. Background Art

[0002] With the advancement of science and technology, the construction industry has also kept pace with the times, making the construction process faster and safer. However, with the aging of the population, more and more young people are unwilling to enter construction sites. The technological and industrial development of the construction industry is an inevitable trend.

[0003] Modular Integrated Construction (MiC) is one of the methods of prefabricated building construction and an innovative construction method. Through the concept of "installation first, then installation", the on-site construction process is transferred to a more controllable factory, where independent modular components (including decoration works, fixtures and building facilities) are produced, thereby reducing on-site construction processes and reducing the impact of weather conditions, labor resources and construction site restrictions on the construction process. At the same time, it is beneficial to manage construction quality and improve the productivity, safety and sustainability of the construction industry.

[0004] The vertical connection of prefabricated components in the assembly synthetic construction method is a key link. The current connection methods include formwork plus on-site iron tying, snake skin through steel bars, steel bar grouting connectors and sandwich walls. However, when pouring concrete in the current sandwich wall, wooden formwork needs to be installed on both sides of the sandwich wall to avoid leakage during concrete pouring. Therefore, a sandwich wall structure is urgently needed, which can not only reduce wooden formwork when pouring concrete, but also effectively improve the overall strength of the sandwich wall. Utility Model Content

[0005] The purpose of the utility model is to provide a sandwich wall structure to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above object, the utility model provides the following solution: The utility model provides a sandwich wall structure, comprising a first prefabricated plate, the first prefabricated plate is detachably connected to a second prefabricated plate, a gap is left between the first prefabricated plate and the second prefabricated plate, a plurality of steel bars are arranged in the gap, and concrete is poured in the gap;

[0007] The first prefabricated plate is fixedly connected to both sides of one end of the second prefabricated plate with first fixing blocks respectively, the first fixing block is detachably connected to the second fixing block, and the second fixing block is fixedly connected to the second prefabricated plate.

[0008] Preferably, a first sliding groove is provided on the second fixing block, and the first sliding groove is detachably connected to the first fixing block.

[0009] Preferably, limiting blocks are fixedly connected to both sides of the first fixed block, and the limiting blocks are detachably connected to second sliding grooves, and the second sliding grooves are arranged in the first sliding grooves.

[0010] Preferably, a plurality of first protrusions are evenly spaced on a side of the first prefabricated plate facing the second prefabricated plate, and a plurality of second protrusions are evenly spaced on a side of the second prefabricated plate facing the first prefabricated plate, and the first protrusions are arranged in one-to-one correspondence with the second protrusions.

[0011] Preferably, first limiting portions are respectively provided on both sides of two adjacent first protrusions, and second limiting portions are respectively provided on both sides of two adjacent second protrusions, and the first limiting portions and the second limiting portions are horizontally offset and arranged between the first prefabricated panel and the second prefabricated panel.

[0012] Preferably, the first limiting portion includes a plurality of first stirrups arranged at equal intervals, and one end of the plurality of first stirrups on the same horizontal plane extending into the first prefabricated panel is fixedly connected to the first tensioning reinforcement, and the positions where the first stirrups intersect with the first tensioning reinforcement are respectively fixedly connected to the first vertical reinforcement, and one end of the first stirrups extending outside the first prefabricated panel is detachably connected to the steel bar.

[0013] Preferably, the second limiting portion includes a plurality of second stirrups arranged at equal intervals, and one end of the plurality of second stirrups on the same horizontal plane extending into the second prefabricated panel is fixedly connected to the second tensioning bars, and the intersection positions of the second stirrups and the second tensioning bars are respectively fixedly connected to the second vertical bars, and one end of the second stirrups extending outside the second prefabricated panel is detachably connected to the steel bars.

[0014] Preferably, the first tensioning rod and the second tensioning rod are U-shaped.

[0015] The utility model discloses the following technical effects:

[0016] The utility model can effectively seal the gap between the first precast plate and the second precast plate through the first fixing block and the second fixing block, so that the poured concrete will not leak from both sides between the first precast plate and the second precast plate; at the same time, the first precast plate and the second precast plate can be effectively connected through the first fixing block and the second fixing block, and the overall strength is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first prefabricated board of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second prefabricated board of the utility model;

[0021] Figure 4 This is a schematic diagram of the overall top-sectional structure of the utility model;

[0022] Among them, 1. the first precast plate; 2. the second precast plate; 3. the steel bar; 4. the concrete; 11. the first tension bar; 12. the first vertical bar; 13. the first protrusion; 14. the first stirrup; 15. the first fixing block; 16. the limiting block; 21. the second tension bar; 22. the second vertical bar; 23. the second protrusion; 24. the second stirrup; 25. the first slide groove; 26. the second slide groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] Reference Figure 1-Figure 4 The utility model discloses a sandwich wall structure, including a first prefabricated plate 1, the first prefabricated plate 1 is detachably connected to the second prefabricated plate 2, a gap is left between the first prefabricated plate 1 and the second prefabricated plate 2, a plurality of steel bars 3 are arranged in the gap, and concrete 4 is poured in the gap; the first prefabricated plate 1 is fixedly connected to the first fixing block 15 on both sides of one end of the second prefabricated plate 2, the first fixing block 15 is detachably connected to the second fixing block, and the second fixing block is fixedly connected to the second prefabricated plate 2.

[0026] The utility model can effectively seal the gap between the first precast plate 1 and the second precast plate 2 through the first fixing block 15 and the second fixing block, so that the poured concrete 4 will not leak from both sides between the first precast plate 1 and the second precast plate 2; at the same time, the first fixing block 15 and the second fixing block can effectively connect the first precast plate 1 and the second precast plate 2, and improve the overall strength.

[0027] In a further optimized solution, the second fixing block is provided with a first slide groove 25, and the first slide groove 25 is detachably connected to the first fixing block 15. The first slide groove 25 facilitates the installation of the first fixing block 15 onto the second fixing block.

[0028] In a further optimized solution, the first fixed block 15 is respectively fixedly connected to the two sides with the limiting blocks 16, and the limiting blocks 16 are detachably connected to the second slide groove 26, and the second slide groove 26 is arranged in the first slide groove 25. When the limiting blocks 16 are installed in the second slide groove 26, the first precast panel 1 and the second precast panel 2 can be effectively connected, and the slurry of the concrete 4 can be effectively prevented from leaking.

[0029] According to a further optimization scheme, a plurality of first protrusions 13 are arranged at equal intervals on the side of the first prefabricated panel 1 facing the second prefabricated panel 2, and a plurality of second protrusions 23 are arranged at equal intervals on the side of the second prefabricated panel 2 facing the first prefabricated panel 1, and the first protrusions 13 and the second protrusions 23 are arranged in a one-to-one correspondence.

[0030] According to a further optimization scheme, first limiting portions are respectively provided on both sides of two adjacent first protrusions 13, and second limiting portions are respectively provided on both sides of two adjacent second protrusions 23. The first limiting portions and the second limiting portions are horizontally offset and arranged between the first prefabricated panel 1 and the second prefabricated panel 2.

[0031] A further optimized solution is that the first limiting portion includes a plurality of first stirrups 14 arranged at equal intervals, and one end of the plurality of first stirrups 14 on the same horizontal plane extending into the first precast panel 1 is fixedly connected to the first tensioning reinforcement 11, and the positions where the first stirrups 14 intersect with the first tensioning reinforcement 11 are respectively fixedly connected to the first vertical reinforcement 12, and one end of the first stirrups 14 extending outside the first precast panel 1 is detachably connected to the steel bar 3.

[0032] A further optimized solution is that the second limiting portion includes a plurality of second stirrups 24 arranged at equal intervals, and one end of the plurality of second stirrups 24 on the same horizontal plane extending into the second precast panel 2 is fixedly connected to the second tensioning reinforcement 21, and the positions where the second stirrups 24 intersect with the second tensioning reinforcement 21 are respectively fixedly connected to the second vertical reinforcement 22, and one end of the second stirrups 24 extending outside the second precast panel 2 is detachably connected to the steel bar 3.

[0033] According to a further optimized solution, the first tie rod 11 and the second tie rod 21 are U-shaped.

[0034] Working process: The first prefabricated panel 1 and the second prefabricated panel 2 are manufactured in a factory.

[0035] When the first precast panel 1 is manufactured, a plurality of first tension bars 11 are arranged in the mold of the first precast panel 1, and the first stirrups 14 are fixedly connected to the first tension bars 11, and the first vertical bars 12 are fixedly connected at the positions where the first stirrups 14 are connected to the first tension bars 11, and then concrete 4 is poured into the mold of the first precast panel 1, so that the first precast panel 1 can be manufactured.

[0036] When the second precast panel 2 is manufactured, a plurality of second tension bars 21 are arranged in the mold of the second precast panel 2, and the second stirrups 24 are fixedly connected to the second tension bars 21, and the second vertical bars 22 are respectively fixedly connected at the positions where the second stirrups 24 are connected to the second tension bars 21, and then concrete 4 is poured into the mold of the second precast panel 2, so that the second precast panel 2 can be manufactured.

[0037] The first prefabricated panel 1 and the second prefabricated panel 2 are sent to the construction site for assembly.

[0038] During the on-site construction process, the reserved steel bars of the foundation need to be checked after the site is leveled to ensure that the reserved steel bars are accurately aligned with the first stirrups 14 and the second stirrups 24. The first precast panel 1 and the second precast panel 2 are hoisted to the predetermined positions with a hanger, and each reserved steel bar is inserted into the first stirrups 14 and the second stirrups 24 of the upper layer. After the calibration is completed, the first vertical bar 12 is inserted into the first stirrup 14, and the second vertical bar 22 is inserted into the second stirrup 24 to form tie bars; then a professional concrete worker uses a trumpet bucket to pour concrete 4 and vibrate it to make it dense, thereby initially completing the vertical connection of the precast components. After the pouring is completed, the rough surface of the wall node is washed 6-8 hours later, and watering maintenance is carried out.

[0039] The utility model can solve the problem of node connection of prefabricated components in the process of industrialized construction, has a promoting and leading role in the development of prefabricated construction of civil housing construction projects, and can better promote the industrialization and modernization of prefabricated buildings; the construction process of the utility model is relatively complete, and the degree of structural prefabrication is high. The application of this technology in multi-story buildings can greatly reduce the on-site labor force and greatly alleviate the impact of the shortage of construction workers; at the same time, it can improve the industrialization level of the construction site, which is conducive to realizing lean construction through refined management and shortening the construction period; in terms of material input, the input of steel pipes, wooden formworks and wooden squares is greatly reduced, achieving near-zero emission of construction waste, and effectively improving the project quality and construction safety level; in addition, it can also save the management cost of the building after it is put into use, reduce maintenance costs, and ensure the service life of the building.

[0040] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0041] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A sandwich wall structure, characterized in that: The invention comprises a first prefabricated plate (1), wherein the first prefabricated plate (1) is detachably connected to a second prefabricated plate (2), a gap is left between the first prefabricated plate (1) and the second prefabricated plate (2), a plurality of steel bars (3) are arranged in the gap, and concrete (4) is poured in the gap; First fixing blocks (15) are respectively fixedly connected to both sides of one end of the first prefabricated plate (1) facing the second prefabricated plate (2); the first fixing block (15) is detachably connected to a second fixing block; and the second fixing block is fixedly connected to the second prefabricated plate (2).

2. The sandwich wall structure according to claim 1, characterized in that: The second fixing block is provided with a first sliding groove (25), and the first sliding groove (25) is detachably connected to the first fixing block (15).

3. The sandwich wall structure according to claim 2, characterized in that: The first fixed block (15) is respectively fixedly connected to a limiting block (16) on both sides, and the limiting block (16) is detachably connected to a second sliding groove (26), and the second sliding groove (26) is arranged in the first sliding groove (25).

4. The sandwich wall structure according to claim 1, characterized in that: A plurality of first protrusions (13) are arranged at equal intervals on a side of the first prefabricated plate (1) facing the second prefabricated plate (2), and a plurality of second protrusions (23) are arranged at equal intervals on a side of the second prefabricated plate (2) facing the first prefabricated plate (1), wherein the first protrusions (13) and the second protrusions (23) are arranged in a one-to-one correspondence.

5. The sandwich wall structure according to claim 4, characterized in that: A first limiting portion is provided on both sides of two adjacent first protrusions (13), and a second limiting portion is provided on both sides of two adjacent second protrusions (23), respectively. The first limiting portion and the second limiting portion are horizontally offset and arranged between the first prefabricated panel (1) and the second prefabricated panel (2).

6. The sandwich wall structure according to claim 5, characterized in that: The first limiting portion comprises a plurality of first stirrups (14) arranged at equal intervals, wherein one end of the plurality of first stirrups (14) on the same horizontal plane extending into the first prefabricated plate (1) is fixedly connected to a first tensioning bar (11), the intersection of the first stirrups (14) and the first tensioning bar (11) is respectively fixedly connected to a first vertical bar (12), and one end of the first stirrups (14) extending outside the first prefabricated plate (1) is detachably connected to the steel bar (3).

7. The sandwich wall structure according to claim 6, characterized in that: The second limiting portion comprises a plurality of second stirrups (24) arranged at equal intervals, wherein one end of the plurality of second stirrups (24) extending into the second prefabricated plate (2) is fixedly connected to a second tensioning bar (21), and the intersections of the second stirrups (24) and the second tensioning bar (21) are respectively fixedly connected to second vertical bars (22), and one end of the second stirrups (24) extending outside the second prefabricated plate (2) is detachably connected to the steel bar (3).

8. The sandwich wall structure according to claim 7, characterized in that: The first tensioning rod (11) and the second tensioning rod (21) are U-shaped.

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