Fabricated prefabricated external wall panel structure and construction method

Abstract

The invention discloses an assembly type prefabricated external wall panel structure and a construction method, and relates to the field of assembly type prefabricated external wall panels, the assembly type prefabricated external wall panel structure comprises a panel body, concave face parts and convex face parts are alternately arranged on the two sides of the panel body at intervals in the vertical direction, and the concave face part on one side of the panel body corresponds to the convex face part on the other side with the same height; connecting parts are arranged at the top ends and the bottom ends of the vertical edges of the plate bodies, the connecting parts of the adjacent plate bodies can contain backing rings after getting close to each other, and hook bolts can penetrate through the backing rings. The concave-convex structures are arranged on the vertical side face of the plate body in the height direction at intervals, the phenomenon that bonding mortar smeared in the concave faces of the side edges of the plate body partially falls off or is not evenly distributed due to the vertical slippage of the bonding mortar can be effectively avoided, when two adjacent outer wall plates are spliced, the bonding mortar is extruded through the concave-convex structures, and the splicing quality of the two adjacent outer wall plates is improved. And the bonding mortar is uniformly distributed on the side surface of the plate body to form an effective bonding layer, so that the connection strength and the sealing performance between the adjacent external wall plates are improved.

Description

Technical Field

[0001] This invention relates to the field of prefabricated exterior wall panels, specifically to a prefabricated exterior wall panel structure and construction method. Background Technology

[0002] Prefabricated exterior wall panels are building exterior enclosure components that are prefabricated in factories using industrialized production methods. After being transported to the construction site, they are assembled with the main structure through mechanical hoisting and joint connection. They integrate multiple functions such as load-bearing, enclosure, heat preservation, waterproofing and decoration, and are a core component of modern prefabricated buildings.

[0003] In existing technologies, prefabricated exterior wall panels are typically installed from door and window openings towards both sides or from one end to the other. First, the installation location is cleaned and dust is removed, and construction lines are laid out. Then, angle irons are fixed to the target position. Special adhesive mortar is applied to the sides, bottom, and top of the prefabricated exterior wall panel. The prefabricated exterior wall panel is then erected and placed close to the target installation position. Finally, holes are drilled at the top and bottom of the prefabricated exterior wall panel, and hook bolts are inserted to complete the installation. After installation, the vertical and horizontal joints between the panels need to be filled with mortar.

[0004] Regarding the aforementioned technologies, existing prefabricated exterior wall panels require on-site perforation during construction. This not only increases construction difficulty and time costs but also easily causes damage or cracks to the prefabricated exterior wall panels during the perforation process, affecting the stability and sealing of the overall structure. Furthermore, the adhesive mortar applied to the sides of the prefabricated exterior wall panels is relatively long, and after the panels are erected, the adhesive mortar is prone to partial detachment or uneven distribution due to its own vertical slippage. This results in poor bonding between adjacent prefabricated exterior wall panels, affecting the overall stability and sealing performance of the connection, and also hindering subsequent mortar grouting.

[0005] In summary, existing prefabricated exterior wall panel structures and construction methods have certain limitations in practical applications, specifically manifested in problems such as low construction efficiency and poor connection stability. Summary of the Invention

[0006] Based on this, the purpose of the present invention is to provide a prefabricated exterior wall panel structure and construction method to solve the technical problems of low construction efficiency and poor connection stability of existing prefabricated exterior wall panel structures and construction methods.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated exterior wall panel structure, comprising a panel body, wherein both sides of the panel body are alternately provided with concave and convex portions along the vertical direction, wherein the concave portion on one side of the panel body corresponds to the convex portion on the other side at the same height, and further comprising a connecting portion, wherein the top and bottom ends of the vertical edge of the panel body are provided with connecting portions, and the connecting portions of adjacent panels can accommodate washers when brought close together, wherein the washers are for passing through by hook bolts.

[0008] By adopting the above technical solution, the concave and convex structures are set at intervals along the height direction on the vertical side of the panel, which can effectively prevent the adhesive mortar applied to the concave surface of the panel from partially falling off or being unevenly distributed due to its own vertical slippage. Furthermore, when two adjacent exterior wall panels are spliced ​​together, the concave and convex structures squeeze the adhesive mortar against each other, so that the adhesive mortar is evenly distributed on the side of the panel and forms an effective adhesive layer, thereby improving the connection strength and sealing performance between adjacent exterior wall panels.

[0009] The present invention is further configured such that no convex part is provided on the plate near the connection part, and the gap width between adjacent plates is greater than the diameter of the hook bolt.

[0010] Preferably, the hook bolts are designed to pass smoothly through the gaps between adjacent plates.

[0011] The invention is further configured such that the plate is installed between the floor slab and the beam, and is arranged sequentially in a state parallel to the column; the beam is fixed with a first angle iron between adjacent plates; the floor slab is fixed with a second angle iron between adjacent plates; and the hook bolt passes through the gap between adjacent plates and can be connected to the first angle iron or the second angle iron.

[0012] Preferably, hook bolts are used in conjunction with the first or second angle iron to fix the top or bottom of adjacent plates.

[0013] The invention is further configured such that the first angle iron has a waist hole for the hook bolt to pass through in the gap between the adjacent plates, and a positioning piece for restricting the rotation of the hook bolt is fixed on the side away from the plate; the second angle iron has a positioning angle iron in the gap between the adjacent plates, the positioning angle iron is located on the side of the second angle iron away from the plate, and can be used to restrict the rotation of the hook bolt.

[0014] Preferably, the end of the hook bolt connecting the first angle iron is supported, thereby better preventing the upper plate of the opening from falling.

[0015] The invention is further configured such that the plate is split into an upper plate and a lower plate at the opening, the upper plate and the lower plate are respectively connected to the crossbeam and the floor slab, and the top of the lower plate and the bottom of the upper plate are both bonded with reinforcing strips arranged along the plate's layout direction.

[0016] Preferably, the connection between the upper and lower plates of the opening is made more stable.

[0017] The present invention is further configured such that a support column is bonded to one side of the plate near the upper plate and lower plate of the opening, the side of the support column facing the plate has a concave-convex surface adapted to the plate, and the other side is a flat surface.

[0018] Preferably, the flat plate is placed on the side of the opening, which also serves to support the edge of the reinforcing strip.

[0019] The present invention is further configured such that the plate body comprises, from the inside out, an aerated concrete layer, an insulation board, an insulation mortar, and a protective net, and a steel reinforcement skeleton is provided inside the aerated concrete layer of the plate body, and the steel reinforcement skeleton is fixedly connected with anchors.

[0020] Preferably, the anchor can effectively prevent delamination and separation of multi-layered plates.

[0021] The present invention is further configured such that the concave and convex surfaces corresponding to each other between adjacent plates do not contact each other.

[0022] Preferably, the adhesive mortar has a certain flow space between adjacent panels, so as to better fill the gaps between adjacent panels.

[0023] The invention is further configured such that the washer ring can be locked in the connecting part after adjacent plates are spliced ​​together, and is coaxially arranged with the hook bolt passing through itself.

[0024] Preferably, when the hook bolt is tightened, the relative movement of adjacent plates can be effectively restricted.

[0025] A method for constructing prefabricated exterior wall panels includes the following steps: Step 1: Clean the dust from the required installation location and lay out the wiring; Step 2: Install the first angle iron and the second angle iron at the target position; Step 3: After applying adhesive mortar to the sides, bottom and top of the board, stand the board up, move the board to the target position, and use hook bolts to pass through the gaps between the boards and connect them to the corresponding first or second angle iron. Step 4: Fill the vertical and horizontal joints between the boards with mortar.

[0026] In summary, the present invention has the following main beneficial effects: This invention, by setting concave and convex structures at intervals along the height direction on the vertical side of the panel, can effectively prevent the adhesive mortar applied to the concave surface of the panel from partially falling off or unevenly distributing due to its own vertical slippage. Furthermore, when two adjacent exterior wall panels are spliced ​​together, the concave and convex structures squeeze the adhesive mortar against each other, so that the adhesive mortar is evenly distributed on the side of the panel and forms an effective adhesive layer, thereby improving the connection strength and sealing performance between adjacent exterior wall panels.

[0027] This invention achieves a stable splicing of exterior wall panels by setting a first angle iron and a second angle iron between the panels to connect the floor slab and the beam, and by having hook bolts pass through the gap between adjacent panels and be fixedly connected to the corresponding first angle iron or second angle iron. This eliminates the need for drilling during the installation of exterior wall panels, effectively reducing construction difficulty and improving installation efficiency.

[0028] This invention strengthens the exterior wall panels at the openings by installing reinforcing strips, allowing the panels to be assembled into a cohesive whole, thereby enhancing the structural strength and stability of the panels at the openings. Furthermore, support columns are installed at both ends of the reinforcing strips to further improve the overall load-bearing capacity of the opening area.

[0029] The present invention provides a waist hole on the first angle iron for the hook bolt to pass through. When the hook bolt passes through the first angle iron, it can be smoothly locked between the positioning pieces, and at the same time, it provides support for the plate at the opening, which facilitates the continuous installation of the plate above the opening. Attached Figure Description

[0030] Figure 1 This is a perspective view of the prefabricated exterior wall panel structure of the present invention after installation; Figure 2 This is a perspective view of the prefabricated exterior wall panel structure after installation, from another angle of the present invention. Figure 3 This is a schematic diagram showing the state of the prefabricated exterior wall panel structure installed at the opening during the installation process of the present invention. Figure 4 For the present invention Figure 3 A magnified view of middle A; Figure 5 For the present invention Figure 3 Enlarged view of middle B; Figure 6 This is a schematic diagram showing the state of the prefabricated exterior wall panel structure installed at the opening, from another perspective of the present invention. Figure 7 For the present invention Figure 6 Enlarged view of C; Figure 8This is a schematic diagram showing the assembly of the reinforcing belt and supporting columns after the prefabricated exterior wall panel structure of the present invention has been installed at the opening. Figure 9 This is a schematic diagram of the assembly of the reinforcing belt and supporting columns after the prefabricated exterior wall panel structure is installed at the opening, which is another perspective of the present invention. Figure 10 For the present invention Figure 9 Enlarged view of D; Figure 11 This is a schematic diagram illustrating the process by which the hook bolt of the present invention passes through the waist hole and is engaged with the two positioning pieces; Figure 12 This is a perspective view of the plate body of the present invention; Figure 13 This is a perspective view of the plate body from another angle of the present invention; Figure 14 For the present invention Figure 13 Enlarged view of E in the middle; Figure 15 This is a schematic diagram of the internal structure of the plate body of the present invention; Figure 16 For the present invention Figure 15 Enlarged view of F in the middle; Figure 17 This is a three-dimensional schematic diagram of existing technology; Figure 18 This is a three-dimensional schematic diagram of existing technology from another perspective.

[0031] Explanation of reference numerals in the attached figures: 1. Slab; 101. Concave surface; 102. Convex surface; 103. Connecting part; 104. Reinforcing steel frame; 105. Upper slab of opening; 106. Lower slab of opening; 2. First angle iron; 201. Positioning piece; 202. Waist hole; 3. Second angle iron; 301. Positioning angle iron; 4. Hook bolt; 5. Washer ring; 6. Reinforcing strip; 7. Support column; 8. Insulation board; 9. Insulation mortar; 10. Protective net; 11. Anchor; 12. Telescopic strut; 13. Floor slab; 14. Column; 15. Beam. Detailed Implementation

[0032] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be understood as limiting the present invention.

[0033] The following describes an embodiment of the present invention based on its overall structure.

[0034] First embodiment: Please refer to a prefabricated exterior wall panel structure. Figure 1-16The plate includes a plate 1, and both sides of the plate 1 are alternately provided with concave part 101 and convex part 102 along the vertical direction. The concave part 101 on one side of the plate 1 corresponds to the convex part 102 on the other side of the same height.

[0035] Specifically, the slab 1 consists of an aerated concrete layer, an insulation board 8, an insulation mortar 9, and a protective net 10, arranged sequentially from the inside out. The insulation board 8 is fixedly connected to the aerated concrete layer by adhesive mortar. A steel reinforcement skeleton 104 is provided inside the aerated concrete layer of the slab 1, and the steel reinforcement skeleton 104 is fixedly connected to anchors 11. The anchors 11 can effectively prevent the multi-layer structure of the slab 1 from delaminating.

[0036] It also includes a connecting part 103. The top and bottom ends of the vertical edge of the plate 1 are provided with a connecting part 103. The connecting part 103 is recessed into the plate 1. When the connecting parts 103 of adjacent plates 1 are close to each other, they can accommodate the washer 5. The washer 5 is for the hook bolt 4 to pass through.

[0037] Furthermore, the washer 5 can be locked in the connecting part 103 after the adjacent plates 1 are spliced ​​together, and is coaxially set with the hook bolt 4 that passes through it. When the hook bolt 4 is tightened, it can effectively restrict the relative movement of the adjacent plates 1.

[0038] For details regarding the above embodiments, please refer to [link / reference]. Figure 1-5 The plate 1 is installed between the floor slab 13 and the beam 15, and is arranged in sequence parallel to the column 14. The beam 15 is fixed with a first angle iron 2 between adjacent plates 1, and the floor slab 13 is fixed with a second angle iron 3 between adjacent plates 1. The hook bolt 4 passes through the gap between adjacent plates 1 and can be connected with the first angle iron 2 or the second angle iron 3. The top or bottom of the adjacent plates 1 is fixed by using the hook bolt 4 to cooperate with the first angle iron 2 or the second angle iron 3.

[0039] Furthermore, no protruding part 102 is provided on the plate 1 near the connecting part 103, and the gap width between adjacent plates 1 is greater than the diameter of the hook bolt 4, so that the hook bolt 4 can pass smoothly through the gap between adjacent plates 1, which facilitates the installation of the hook bolt 4.

[0040] For details regarding the above embodiments, please refer to [link / reference]. Figure 3-10 The plate 1 is split into an upper opening plate 105 and a lower opening plate 106 at the opening. The upper opening plate 105 and the lower opening plate 106 are respectively connected to the crossbeam 15 and the floor slab 13. Specifically, the top surface of the upper opening plate 105 is bonded to the crossbeam 15, and the bottom surface of the lower opening plate 106 is bonded to the floor slab 13. The top of the lower opening plate 106 and the bottom of the upper opening plate 105 are both bonded with reinforcing strips 6 arranged along the layout direction of the plate 1. Specifically, in this embodiment, the reinforcing strips 6 are made of strip steel, making the connection between the upper opening plate 105 and the lower opening plate 106 more stable.

[0041] Specifically, when connecting the first upper plate 105 of the opening to one side of the plate 1, first install the lower plate 106 of the opening corresponding to the upper plate 105. Then, the telescopic support rod 12 can be used to support the bottom of the upper plate 105 away from the adjacent plate 1, so as to facilitate the smooth installation of the hook bolt 4 between the upper plate 105 and the adjacent plate 1. Similarly, after the upper plate 105 and the lower plate 106 of the opening are installed, apply adhesive mortar to the bonding surface of the reinforcing strip 6 so that the reinforcing strip 6 is tightly attached to the upper plate 105 and the lower plate 106 of the opening. Alternatively, the telescopic support rod 12 can be used to support the upper and lower reinforcing strips 6 to help the reinforcing strip 6 better bond with the corresponding upper plate 105 and lower plate 106 of the opening.

[0042] Second embodiment: Please refer to a prefabricated exterior wall panel structure. Figure 1-16 Based on the first embodiment, the difference from the first embodiment is that the first angle iron 2 is provided with a waist hole 202 for the hook bolt 4 to pass through in the gap of the adjacent plate 1, and a positioning piece 201 for restricting the rotation of the hook bolt 4 is fixed on the side away from the plate 1. The second angle iron 3 is provided with a positioning angle iron 301 in the gap of the adjacent plate 1. The positioning angle iron 301 is provided on the side of the second angle iron 3 away from the plate 1 and can be used to restrict the rotation of the hook bolt 4, and support the end of the hook bolt 4 connected to the first angle iron 2, thereby better preventing the upper plate 105 of the opening from falling.

[0043] Specifically, when installing a subsequent plate 1 on one side of plate 1, it is necessary to connect the upper end of the plate 1 with the hook bolt 4. The hook head of the hook bolt 4 first passes through the waist hole 202 of the first angle iron 2 and then rotates 90 degrees to restore the long rod of the hook bolt 4 to the horizontal. Then, it rotates 180 degrees along the axis of the long rod of the hook bolt 4 so that the hook head corresponds to the gap between the positioning piece 201. Pull the hook bolt 4 to make the hook head fit into the gap between the positioning pieces 201. After the subsequent plate 1 is attached to the plate 1, install the washer 5 and tighten the hook bolt 4. When the lower end of the plate 1 needs to be connected with the hook bolt 4, it is only necessary to pass the hook bolt 4 through the gap between the adjacent plates 1 after the adjacent plates 1 are attached to each other, and then insert the hook head of the hook bolt 4 into the positioning angle iron 301 to install the washer 5 and tighten the hook bolt 4.

[0044] For details regarding the above embodiments, please refer to [link / reference]. Figure 6-10 A support column 7 is bonded to one side of the plate 1 near the upper plate 105 and the lower plate 106 of the opening. The side of the support column 7 facing the plate 1 has a concave and convex surface that matches the plate 1, and the other side is flat, which flattens the side of the plate 1 at the opening and also serves to support the edge of the reinforcing strip 6.

[0045] Furthermore, the concave surfaces 101 and convex surfaces 102 of adjacent plates 1 do not contact each other, allowing the adhesive mortar to have a certain flow space between adjacent plates 1, thereby better filling the gaps between adjacent plates 1 with the adhesive mortar.

[0046] A method for constructing prefabricated exterior wall panels includes the following steps: Step 1: Clean the dust and mark the lines at the required installation location. Specifically, the width of panel 1 is customized according to the spacing of each column 14 in the building to be constructed and the height between the floor slab 13 and the beam 15 in the building. After the prefabricated panels are delivered to the construction site, first check the specifications, dimensions and strength grade of the panels to ensure that there is no damage or warping. Then clean the wall base to ensure that it is flat, clean and free of oil stains. Then, mark the installation position lines, edge lines and opening lines at the corresponding positions of the building floor slab 13, column 14 and beam 15, and mark the panel joint width control line. Step 2: Install the first angle iron 2 and the second angle iron 3 at the target position. Specifically, the first angle iron 2 and the second angle iron 3 can be quickly installed using a gun nail. Step 3: After applying adhesive mortar to the sides, bottom and top of the board 1, stand the board up. Specifically, the adhesive mortar on the side of the board 1 is mainly applied to the concave part 101. The adhesive mortar in the concave part 101 is supported by the vertically adjacent convex part 102, which can effectively prevent partial detachment or uneven distribution due to its own vertical slippage. Then move the board to the target position and use the hook bolt 4 to pass through the gap between the boards 1 and connect it to the corresponding first angle iron 2 or second angle iron 3. Step 4: Fill the vertical and horizontal joints between the boards with mortar.

[0047] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiment without creative contribution as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A prefabricated exterior wall panel structure, characterized in that, include: The plate (1) has concave part (101) and convex part (102) alternately arranged on both sides along the vertical direction. The concave part (101) on one side of the plate (1) corresponds to the convex part (102) on the other side of the same height. The connecting part (103) is provided at the top and bottom of the vertical edge of the plate (1). When the connecting parts (103) of adjacent plates (1) are close to each other, they can accommodate the washer (5). The washer (5) is for the hook bolt (4) to pass through.

2. The prefabricated exterior wall panel structure according to claim 1, characterized in that: The plate (1) does not have a convex part (102) near the connecting part (103), and the gap width between adjacent plates (1) is greater than the diameter of the hook bolt (4).

3. The prefabricated exterior wall panel structure according to claim 1, characterized in that: The plate (1) is installed between the floor slab (13) and the beam (15), and is arranged in sequence parallel to the column (14). The beam (15) is fixed with a first angle iron (2) between adjacent plates (1), and the floor slab (13) is fixed with a second angle iron (3) between adjacent plates (1). The hook bolt (4) can be connected to the first angle iron (2) or the second angle iron (3) after passing through the gap between adjacent plates (1).

4. The prefabricated exterior wall panel structure according to claim 3, characterized in that: The first angle iron (2) has a waist hole (202) for the hook bolt (4) to pass through in the gap of the corresponding adjacent plate (1), and a positioning piece (201) for restricting the rotation of the hook bolt (4) is fixed on the side away from the plate (1). The second angle iron (3) has a positioning angle iron (301) in the gap of the corresponding adjacent plate (1). The positioning angle iron (301) is located on the side of the second angle iron (3) away from the plate (1) and can be used to restrict the rotation of the hook bolt (4).

5. The prefabricated exterior wall panel structure according to claim 1, characterized in that: The plate (1) is split into an upper opening plate (105) and a lower opening plate (106) at the opening. The upper opening plate (105) and the lower opening plate (106) are respectively connected to the crossbeam (15) and the floor slab (13). The top of the lower opening plate (106) and the bottom of the upper opening plate (105) are both bonded with reinforcing strips (6) arranged along the layout direction of the plate (1).

6. The prefabricated exterior wall panel structure according to claim 5, characterized in that: A support column (7) is bonded to one side of the plate (1) near the upper plate (105) and lower plate (106) of the opening. The support column (7) has a concave-convex surface that matches the plate (1) on one side and a flat surface on the other side.

7. The prefabricated exterior wall panel structure according to claim 1, characterized in that: The plate (1) consists of an aerated concrete layer, an insulation board (8), an insulation mortar (9), and a protective net (10) in sequence from the inside out. A steel reinforcement frame (104) is provided in the aerated concrete layer of the plate (1), and the steel reinforcement frame (104) is fixedly connected with anchors (11).

8. The prefabricated exterior wall panel structure according to claim 1, characterized in that: The concave portion (101) and convex portion (102) of adjacent plates (1) do not contact each other.

9. The prefabricated exterior wall panel structure according to claim 1, characterized in that: The washer (5) can be inserted into the connecting part (103) after the adjacent plates (1) are spliced ​​together, and is coaxially set with the hook bolt (4) that passes through it.

10. A method for constructing prefabricated exterior wall panels, characterized in that... The process of using the prefabricated exterior wall panel structure according to any one of claims 1-9 includes the following steps: Step 1: Clean the dust from the required installation location and lay out the wiring; Step 2: Install the first angle iron and the second angle iron at the target position; Step 3: After applying adhesive mortar to the sides, bottom and top of the board, stand the board up, move the board to the target position, and use hook bolts to pass through the gaps between the boards and connect them to the corresponding first or second angle iron. Step 4: Fill the vertical and horizontal joints between the boards with mortar.

Images