Prestress assembly type laminated shear wall

Abstract

The utility model relates to the technical field of novel assembly type building components, in particular to a prestress assembly type laminated shear wall. The protection structure comprises a pair of protection layers arranged in a spaced mode, a steel reinforcement framework is arranged between the two protection layers, adhesion layers are arranged between the steel reinforcement framework and the two protection layers, and a PVC pipe is fixedly connected between the two protection layers. The protective layer is used for protecting the internal structure of the shear wall and can be used as a template for pouring the filling layer; according to the pre-stress assembly type laminated shear wall, the protective layer made of the pre-stress basalt fiber grating material is wrapped outside, so that the tensile strength is improved, and molds are saved; the protective layer made of the prestressed basalt fiber grating material can be cut at will and produced in batches; the upper layer and the lower layer are connected through the vertical steel bars, the inclined bars are connected to the outer sides of the horizontal steel bars and the vertical steel bars, and the three are fixed through the tie bars.

Description

Technical Field

[0001] The utility model relates to the technical field of new assembled building components, and more specifically to a prestressed assembled composite shear wall. Background Art

[0002] Prefabricated concrete shear walls have the advantages of high mechanization, reliable quality, convenient construction, energy saving and environmental protection. They are widely recognized by the society as an application technology with sustainable development. However, there are also problems such as high transportation costs of prefabricated components. Prestressed prefabricated composite shear walls give full play to the advantages of prefabricated components, and at the same time reduce their own weight and transportation costs by pouring concrete at the construction site. In terms of shear wall connection, although the sleeve grouting connection technology is highly reliable and widely used in China; however, it has high requirements for on-site construction accuracy, and lacks effective detection methods for grouting fullness, and the actual construction effect is far from the theoretical situation. Prestressed prefabricated composite shear walls use the characteristics of installing the steel skeleton first and then pouring concrete to facilitate the adjustment of the position to fit the upper and lower layers of steel bars. No connection device is required, avoiding the problem of sleeve grouting.

[0003] At present, the existing prefabricated shear walls have too much dead weight during transportation and hoisting, which makes installation inconvenient, time-consuming and labor-intensive. In addition, the longitudinal steel bars are overlapped by grouting sleeves, which requires high precision during construction and has poor connection reliability.

[0004] In view of this, the utility model provides a prestressed assembled composite shear wall to solve the above-mentioned deficiencies. Utility Model Content

[0005] The purpose of the utility model is to provide a prestressed assembled composite shear wall in view of the defects of the prior art, so as to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a prestressed assembled composite shear wall, comprising a pair of protective layers arranged at intervals, a steel skeleton is provided between the two protective layers, an adhesive layer is provided between the steel skeleton and the two protective layers, a PVC pipe is fixedly connected between the two protective layers, and a filling layer is cast between the two protective layers; the protective layer is used to protect the internal structure of the shear wall, the protective layer can be used as a template for casting the filling layer, the steel skeleton is used to provide support for the two protective layers before casting the filling layer, the adhesive layer is used to bond the protective layer to the steel skeleton, and the filling layer is used as the main support of the shear wall.

[0007] As a further improvement of the technical solution, the protective layer is made of prestressed basalt fiber grid concrete slab.

[0008] As a further improvement of the technical solution, the adhesive layer is a structural adhesive.

[0009] As a further improvement of the present technical solution, the steel bar skeleton includes a plurality of staggered horizontal steel bars and vertical steel bars, and diagonal bars are provided on the sides of a plurality of the horizontal steel bars and vertical steel bars. Tie bars are fixedly connected between the horizontal steel bars and vertical steel bars, the horizontal steel bars and diagonal bars, and the vertical steel bars and diagonal bars.

[0010] As a further improvement of the technical solution, bolts are provided inside the PVC pipe.

[0011] As a further improvement of the technical solution, the filling layer is a concrete layer.

[0012] As a further improvement of the technical solution, the distance between the two protective layers is 300 mm.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] In the prestressed assembled composite shear wall, the tensile strength is improved by outwrapping the protective layer of basalt fiber grid material, replacing the formwork and saving the mold; the protective layer of the prestressed basalt fiber grid concrete plate material can be cut at will and mass-produced; the connection structure is simplified, the upper and lower layers are connected by vertical steel bars, and then the oblique bars are connected to the outside of the horizontal and vertical steel bars. The three are fixed to each other by tension bars, the structure is simple, the dead weight is small, and it is convenient for on-site installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is described in more detail below by way of example with reference to the accompanying drawings, in which:

[0016] Figure 1 It is a top view of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0018] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle.

[0019] The meanings of the numbers in the figure are: 1. Protective layer; 2. Horizontal steel bars; 3. Vertical steel bars; 4. Tension bars; 5. Diagonal bars; 6. PVC pipe; 7. Bolts; 8. Filling layer. DETAILED DESCRIPTION

[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0021] like Figure 1-Figure 2 As shown, the device includes: a pair of protective layers 1 arranged at intervals, a steel frame is provided between the two protective layers 1, an adhesive layer is provided between the steel frame and the two protective layers 1, a PVC pipe 6 is fixedly connected between the two protective layers 1, and a filling layer 8 is cast between the two protective layers 1; the protective layer 1 is used to protect the internal structure of the shear wall, the protective layer 1 can be used as a template for casting the filling layer 8, the steel frame is used to provide support for the two protective layers 1 before casting the filling layer 8, the adhesive layer is used to bond the protective layer 1 to the steel frame, and the filling layer 8 is used as the main support of the shear wall.

[0022] First, the specific structure of the protective layer 1 is disclosed. The protective layer 1 is a concrete slab made of basalt fiber grid;

[0023] The improvement of this embodiment is that the prestressed basalt fiber grid has a large specific surface area, and the bonding and anchoring performance between the prestressed basalt fiber grid and the concrete filling layer 8 is better, and can achieve bonding and self-anchoring without adding additional anchoring structures. In addition, since the protective layer 1 is made of prestressed basalt fiber grid material, the protective layer 1 has a small thickness and sufficient bending bearing capacity, which can meet the requirements of the production process, and at the same time improve the tensile strength of the wall, so that the wall has better crack resistance, and can replace the template to save engineering costs.

[0024] According to the above disclosure of the specific structure of the adhesive layer, the adhesive layer is a structural adhesive;

[0025] The improvement of this embodiment is that the steel bar skeleton is bonded to the inner side of the protective layer 1 by structural adhesive instead of being arranged inside the protective layer 1, so that when the protective layer 1 is damaged, it is convenient to replace it.

[0026] According to the above disclosure of the specific structure of the steel skeleton, the steel skeleton includes a plurality of staggered horizontal steel bars 2 and vertical steel bars 3, a plurality of horizontal steel bars 2 and vertical steel bars 3 are provided with oblique bars 5 on their sides, and tension bars 4 are fixedly connected between the horizontal steel bars 2 and the vertical steel bars 3, the horizontal steel bars 2 and the oblique bars 5, and the vertical steel bars 3 and the oblique bars 5;

[0027] The improvement of this embodiment is that the vertical steel bars 3 are exposed and can be manually adjusted to make the upper and lower layers of the steel bar skeleton fit together, and then a filling layer 8 is poured between the two protective layers 1 to overlap and connect them, without the need for other devices.

[0028] In summary, the working principle of this solution is as follows:

[0029] First, make and lay the protective layer 1 on one side, lay out the lines, leave holes for placing the bolts 7, insert the PVC pipe 6 and the bolts 7, and then lay the overlapped steel frame on the protective layer 1 according to the designed position, and use structural adhesive to bond the steel frame and the protective layer 1 at a certain distance (300mm); then apply structural adhesive on the other side of the steel frame as required, align the protective layer 1 on the other side with the PVC pipe 6, pass the bolts 7 and lay it on the steel frame, and tighten the bolts 7 to make the structural adhesive fit between the steel frame and the protective layer 1, thus completing the prefabrication of the prestressed assembled composite shear wall, and then transport it to the construction site for installation and pour the filling layer 8 between the two protective layers 1.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A prestressed assembled composite shear wall, characterized in that: It comprises a pair of protective layers (1) arranged at intervals, a steel frame is provided between the two protective layers (1), an adhesive layer is provided between the steel frame and the two protective layers (1), a PVC pipe (6) is fixedly connected between the two protective layers (1), and a filling layer (8) is cast between the two protective layers (1); The protective layer (1) is used to protect the internal structure of the shear wall. The protective layer (1) can be used as a template for pouring a filling layer (8). The steel skeleton is used to provide support for the two protective layers (1) before pouring the filling layer (8). The adhesive layer is used to adhere the protective layer (1) to the steel skeleton. The filling layer (8) is used as the main support of the shear wall.

2. The prestressed assembled composite shear wall according to claim 1, characterized in that: The protective layer (1) is made of a prestressed basalt fiber grid concrete slab.

3. The prestressed assembled composite shear wall according to claim 1, characterized in that: The adhesive layer is structural adhesive.

4. The prestressed assembled composite shear wall according to claim 1, characterized in that: The steel bar skeleton comprises a plurality of staggered horizontal steel bars (2) and vertical steel bars (3), a plurality of the horizontal steel bars (2) and vertical steel bars (3) are provided with oblique bars (5) on their sides, and tension bars (4) are fixedly connected between the horizontal steel bars (2) and vertical steel bars (3), the horizontal steel bars (2) and the oblique bars (5), and the vertical steel bars (3) and the oblique bars (5).

5. The prestressed assembled composite shear wall according to claim 1, characterized in that: Bolts (7) are provided inside the PVC pipe (6).

6. The prestressed assembled composite shear wall according to claim 1, characterized in that: The filling layer (8) is a concrete layer.

7. The prestressed assembled composite shear wall according to claim 1, characterized in that: The distance between the two protective layers (1) is 300 mm.

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