Concrete sandwich wallboard adopting retired fan blade composite material tie piece

Abstract

The utility model relates to the field of buildings, in particular to a concrete sandwich wallboard adopting a retired fan blade composite material tie piece, which comprises an upper concrete leaf plate, a heat insulation plate and a lower concrete leaf plate which are sequentially arranged in an overlapped mode, and the upper concrete leaf plate and the lower concrete leaf plate are connected and fixed through tie pieces. Reinforcing meshes are horizontally arranged in the upper concrete leaf plate and the lower concrete leaf plate, and the connecting structure is characterized in that the tie piece is arranged in a vertical plate mode and comprises a positioning section corresponding to the heat preservation plate in position and anchoring sections located on the two sides of the positioning section and corresponding to the upper concrete leaf plate and the lower concrete leaf plate in position. The side face of the plate body of the anchoring section is provided with a limiting groove allowing concrete to be poured in. According to the utility model, the influence of the thermal bridge effect on the sandwich wallboard is reduced, the anchoring bearing capacity of the tie piece is improved, and the service life of the sandwich wallboard is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of construction, specifically a concrete sandwich wall panel using composite material tie-fitting components for retired wind turbine blades. Background Technology

[0002] Traditional building wall panels and floor slabs are typically made of solid reinforced concrete slabs. However, due to their poor thermal insulation performance, buildings using solid reinforced concrete slabs often suffer from significant energy losses. To improve the thermal insulation effect of buildings, precast concrete sandwich panels have emerged. Precast concrete sandwich panels mainly consist of inner leaf panels, outer leaf panels, insulation panels, and tie rods. In precast concrete sandwich panels, both the inner and outer leaf panels are reinforced concrete structures. The insulation panels are typically made of expanded polystyrene (EPS) or extruded polystyrene (XPS) to improve the thermal insulation performance of the building envelope. Tie rods are used to connect the inner and outer leaf panels, ensuring integrity and mechanical properties. In the initial design, concrete blocks or steel bars are often used as tie rods. While this type of precast concrete sandwich panel can achieve high overall performance, it generates a significant thermal bridging effect, thus reducing the panel's thermal insulation performance. Therefore, the construction industry is increasingly using fiber-reinforced resin (FRP) materials to make tie rods and as internal reinforcement materials to reduce thermal bridging effects while improving corrosion resistance and durability.

[0003] However, when using fiber-reinforced resin (FRP) materials to make tie members to connect the inner and outer concrete leaf plates, the anchorage bearing capacity is lower than that of conventional steel structure tie members due to the influence of the material's elastic modulus and shear strength. After long-term operation, the insulation board is prone to slippage between the inner and outer concrete leaf plates. Although sandwich wall panels reduce the impact of thermal bridging, they also lead to a reduction in the service life of sandwich wall panels, which urgently needs to be addressed. Utility Model Content

[0004] To avoid and overcome the technical problems existing in the prior art, this utility model provides a concrete sandwich wall panel using composite material tie members from retired wind turbine blades. This utility model reduces the impact of thermal bridging on the sandwich wall panel while improving the anchoring bearing capacity of the tie members, thus extending the service life of the sandwich wall panel.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A concrete sandwich wall panel using composite material tie members for retired wind turbine blades includes an upper concrete blade, an insulation board, and a lower concrete blade arranged in sequence. The upper and lower concrete blades are connected and fixed by tie members. Reinforcing mesh is horizontally arranged inside both the upper and lower concrete blades. The tie members are arranged in a vertical plate manner. Each tie member includes a positioning section corresponding to the position of the insulation board and anchoring sections located on both sides of the positioning section, corresponding to the positions of the upper and lower concrete blades, respectively. The side of the anchoring section has a limiting groove for pouring concrete.

[0007] As a further embodiment of this utility model: the limiting groove is symmetrically arranged on both sides of the plate body of the anchoring section, the groove cavity of the limiting groove is a right-angled triangular prism cavity, one set of right-angled sides of the limiting groove cavity is the side of the plate body of the anchoring section, and the other set of right-angled sides of the limiting groove cavity is arranged adjacent to the positioning section.

[0008] As a further improvement of this utility model: a positioning sleeve is provided on the outer ring of the positioning section, and a limiting plate is protruding on the positioning sleeve and arranged parallel to the surface of the insulation board. The positioning sleeve abuts against the surface of the insulation board through the limiting plate to position the installation position of the tie member.

[0009] As a further improvement of this utility model, the thickness of the positioning sleeve and the limiting plate is 0.5mm to 2mm.

[0010] As a further improvement of this utility model: the thickness of the upper concrete leaf plate and the lower concrete leaf plate is 50mm to 100mm, and the thickness of the insulation board is 30mm to 100mm.

[0011] As a further improvement of this utility model: the tie member is made of glass fiber reinforced composite material, the positioning sleeve is made of plastic, and the thickness of the tie member is 3mm to 10mm.

[0012] As a further improvement of this utility model, the angle between the hypotenuse of the limiting groove and the right-angled side of the adjacent positioning section of the limiting groove is 63° to 85°.

[0013] As a further embodiment of this utility model, the raw material is glass fiber reinforced resin composite extruded board from retired wind turbine blades or waste glass fiber reinforced resin composite extruded board used to make wind turbine blades.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model uses a tie member made of glass fiber reinforced composite material to connect the upper and lower concrete leaf plates. By opening a limiting groove on the tie member, when the upper and lower concrete leaf plates are poured, the concrete is poured into the limiting groove. The solidified concrete produces an anchoring effect, which enhances the connection between the upper and lower concrete leaf plates. This reduces the impact of thermal bridging on the sandwich wall panel, while improving the anchoring bearing capacity of the tie member and increasing the service life of the sandwich wall panel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the tie-up component in this utility model.

[0018] Figure 3 A schematic diagram of the structure of a decommissioned wind turbine blade used for manufacturing tie rods.

[0019] Figure 4 for Figure 3 A schematic diagram of glass fiber reinforced resin composite panels stacked in the main beam.

[0020] In the picture:

[0021] 1. Concrete upper leaf slab; 2. Insulation board; 3. Concrete lower leaf slab;

[0022] 4. Reinforcing mesh; 5. Tie-fitting components;

[0023] 51. Positioning section; 52. Anchoring section; 53. Limiting groove;

[0024] 6. Positioning sleeve; 61. Limiting plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 In this embodiment of the invention, a concrete sandwich wall panel using composite material tie rods for retired wind turbine blades includes an upper concrete blade 1, an insulation board 2, and a lower concrete blade 3 stacked sequentially from top to bottom. Both the upper concrete blade 1 and the lower concrete blade 3 are provided with reinforcing mesh 4. The thickness of the upper concrete blade 1 and the lower concrete blade 3 is preferably set to 50–100 mm, and the thickness of the insulation board 2 is 30–100 mm.

[0027] The upper concrete leaf slab 1 and the lower concrete leaf slab 3 are connected by tie members 5, which are arranged perpendicular to the surface of the insulation board 2. The tie member 5 includes a positioning section 51 located at the center and anchoring sections 52 symmetrically distributed on both sides of the positioning section 51. The two positioning sections 51 of the tie member 5 correspond to the positions of the upper concrete leaf slab 1 and the lower concrete leaf slab 3, respectively, and the anchoring sections 52 of the tie member 5 correspond to the positions of the insulation board 2.

[0028] Symmetrically arranged limiting grooves 53 are provided on both sides of the anchoring section 42. The cross-section of the limiting groove 53 is a right-angled triangle, with the longer right-angled side of the cross-section flush with the side of the anchoring section 42. The shorter right-angled side of the cross-section is adjacent to the positioning section 51 and parallel to the surface of the insulation board 2. The angle between the hypotenuse and the shorter right-angled side of the cross-section is 63° to 85°. The length of the longer right-angled side of the cross-section is preferably 30 to 50 mm, and the length of the shorter right-angled side of the cross-section is preferably 10 to 70 mm.

[0029] The positioning section 51 of the tie member 5 is covered with a positioning sleeve 6, which is made of plastic. A limiting plate 61 protrudes horizontally from the end of the positioning sleeve 6. The limiting plate 61 is used to abut against the surface of the insulation board 2 to position the tie member 5. The thickness of the limiting plate 61 and the positioning sleeve 6 is typically 0.5–2 mm. The horizontal length of the limiting plate 6 is 5–10 mm. Preferably, the length of the positioning sleeve 6 is set to correspond to the thickness of the insulation board 2, that is, when the limiting plate 61 abuts against one side of the insulation board 2, the other end face of the positioning sleeve 6 is flush with the other side of the insulation board 2.

[0030] There are two methods for manufacturing the tie member 5:

[0031] 1. For example Figure 3 As shown, the wind turbine blades are circumferentially cut to disassemble the main beams within the blades. Figure 4 As shown, a truncated sheet is obtained by stacking layers of truncated sheets; the truncated sheets stacked in the main beam are peeled off to obtain a single-layer glass fiber reinforced resin composite board; the glass fiber reinforced resin composite board is cut to manufacture tie members 5 of corresponding dimensions.

[0032] 2. Recycle the waste glass fiber reinforced resin composite extruded plates from the process of manufacturing wind turbine blades, cut the waste glass fiber reinforced resin composite extruded plates, and manufacture tie parts 5 of corresponding dimensions.

[0033] When casting the sandwich wall panel, the insulation board 2 is first installed in the casting mold, and the tie member 5 is inserted into the insulation board 2. When the limiting plate 61 abuts against the surface of the insulation board 2, it indicates that the tie member 5 is installed in place. After the tie member 5 is installed in place, concrete is poured to form the upper concrete leaf plate 1 and the lower concrete leaf plate 3. The poured concrete flows into the limiting groove 53, and the solidified concrete produces an anchoring effect, forming a connection between the upper concrete leaf plate 1 and the lower concrete leaf plate 3.

[0034] The basic principles of this application have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this application are merely examples and not limitations, and should not be considered as essential features of each embodiment of this application. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the application to the necessity of employing the aforementioned specific details for implementation.

[0035] The block diagrams of devices, apparatuses, devices, and systems involved in this application are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, devices, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

Claims

1. A concrete sandwich wall panel using composite material tie rods for retired wind turbine blades, characterized in that, The structure includes a concrete upper leaf plate (1), an insulation board (2), and a concrete lower leaf plate (3) arranged in sequence. The concrete upper leaf plate (1) and the concrete lower leaf plate (3) are connected and fixed by tie members (5). The concrete upper leaf plate (1) and the concrete lower leaf plate (3) are both horizontally arranged with steel mesh (4). The tie members (5) are arranged in a vertical plate manner. The tie members (5) include a positioning section (51) corresponding to the position of the insulation board (2) and an anchoring section (52) located on both sides of the positioning section (51) and corresponding to the positions of the concrete upper leaf plate (1) and the concrete lower leaf plate (3), respectively. The side of the anchoring section (52) is provided with a limiting groove (53) for concrete to be poured in.

2. A concrete sandwich wall panel using composite material tie rods for decommissioned wind turbine blades as described in claim 1, characterized in that, The limiting groove (53) is symmetrically arranged on both sides of the plate body of the anchoring section (52). The groove cavity of the limiting groove (53) is a right-angled triangular prism cavity. One set of right-angled sides of the groove cavity of the limiting groove (53) is the side of the plate body of the anchoring section (52), and the other set of right-angled sides of the groove cavity of the limiting groove (53) is arranged adjacent to the positioning section (51).

3. A concrete sandwich wall panel using composite material tie rods for decommissioned wind turbine blades as described in claim 1, characterized in that, The outer ring of the positioning section (51) is fitted with a positioning sleeve (6), and the positioning sleeve (6) is provided with a limiting plate (61) arranged parallel to the surface of the insulation board (2). The positioning sleeve (6) abuts against the surface of the insulation board (2) through the limiting plate (61) to position the installation position of the tie member (5).

4. A concrete sandwich wall panel using composite material tie members for decommissioned wind turbine blades according to claim 3, characterized in that, The thickness of the positioning sleeve (6) and the limiting plate (61) is 0.5mm to 2mm.

5. A concrete sandwich wall panel using composite material tie members for decommissioned wind turbine blades according to claim 3, characterized in that, The tie member (5) is made of glass fiber reinforced composite material, the positioning sleeve (6) is made of plastic, and the thickness of the tie member (5) is 3mm to 10mm.

6. A concrete sandwich wall panel using composite material tie members for decommissioned wind turbine blades according to any one of claims 1 to 5, characterized in that, The thickness of the upper concrete leaf slab (1) and the lower concrete leaf slab (3) is 50mm to 100mm, and the thickness of the insulation board (2) is 30mm to 100mm.

7. A concrete sandwich wall panel using composite material tie members for decommissioned wind turbine blades according to any one of claims 1 to 5, characterized in that, The angle between the hypotenuse of the limiting groove (53) and the right-angled side of the adjacent positioning section of the limiting groove (53) is 63° to 85°.

8. A concrete sandwich wall panel using composite material tie members for decommissioned wind turbine blades according to any one of claims 1 to 5, characterized in that, The raw material for the tie piece (5) is glass fiber reinforced resin composite extruded plate from retired wind turbine blades or waste glass fiber reinforced resin composite extruded plate used to make wind turbine blades.

Images