A prefabricated composite exterior wall panel and its construction process

Abstract

This application relates to a prefabricated composite exterior wall and its construction process, belonging to the technical field of building structures. The prefabricated composite exterior wall includes a wall panel body located between two adjacent beams and two columns of a building frame; an upper connector for connecting the wall panel body to one of the upper beams among the two adjacent beams; two upper connectors form a group; the upper connector includes a web plate, a connecting plate, a hanging plate, and a plug rod; the web plate is parallel to the web of the beam; the two web plates in the same group abut against the two side walls of the web of the beam respectively; the connecting plate is vertically fixed to the web plate, and the connecting plate abuts against the upper surface of the lower flange of the beam; the hanging plate is vertically fixed to the connecting plate, and the hanging plate is parallel to the web plate; the plug rod is vertically fixed to the hanging plate, and the plug rod is inserted into the wall panel body; and a lower connector, two lower connectors form a group; used to connect the wall panel body to the lower beam among the two adjacent beams, and used to fix the upper connector of the wall panel body located below it on the same beam. This application has the effect of improving construction efficiency.

Description

Technical Field

[0001] This application relates to the technical field of building structures, and in particular to a prefabricated composite exterior wall panel and its construction process. Background Technology

[0002] Steel structure buildings are a type of architecture that uses steel as its primary element. These structures include frames, columns, beams, and connectors, which together form the building's skeleton. During construction, both columns and beams utilize I-beams. The webs of the I-beams used as beams are vertical, while the upper and lower flanges are horizontal. Steel structure buildings withstand strong gravity and wind loads. Furthermore, because steel is a recyclable material, steel structure buildings offer significant advantages in terms of sustainable construction. After the building skeleton is erected, prefabricated composite exterior wall panels are used as the exterior walls of the steel structure building, replacing the original autoclaved aerated concrete blocks or hollow concrete blocks, thus improving the construction speed of the steel structure building.

[0003] Existing Chinese patents disclose an integrated decorative and thermal insulation prefabricated composite exterior wall panel, comprising, from the outside to the inside: an outer sandwich panel, a steel frame, and an inner sandwich panel. The inner and outer sandwich panels are fixed to both sides of the steel frame using self-tapping screws. The outer sandwich panel, from the outside to the inside, has an exterior finish layer, a first thermal insulation layer, and a first reinforcing layer. The inner sandwich panel has a second thermal insulation layer in the middle, and a second and third reinforcing layers on its sides. In use, the composite exterior wall panel is connected to the steel structure building frame to achieve exterior wall installation, replacing the original concrete air-supported block construction and improving construction speed.

[0004] Regarding the aforementioned technologies, existing composite exterior wall panels are often connected to steel structure building frames using an external hanging method. This connection process inevitably involves drilling holes in the steel structure frame or welding connectors to the outside of the steel structure frame. Drilling holes in the steel structure frame affects its load-bearing and wind resistance capabilities, while welding connectors to the outside of the steel structure frame inevitably reduces construction speed, resulting in inconvenient construction. Summary of the Invention

[0005] To address the drawback of slow construction speed, this application provides a prefabricated composite exterior wall panel and its construction process.

[0006] In a first aspect, this application provides a prefabricated composite exterior wall panel, employing the following technical solution: comprising: a wall panel body, located between two adjacent beams and two columns of a building frame; an upper connector, used to connect the wall panel body to one of the upper beams among the two adjacent beams; two upper connectors forming a group; the upper connector includes a web plate, a connecting plate, a hanging plate, and a plug rod; the web plate is parallel to the web of the beam; the two web plates in the same group abut against the side walls of the web of the beam respectively; the connecting plate is vertically fixed to the web plate, and the connecting plate abuts against the upper surface of the lower flange of the beam; the hanging plate is vertically fixed to the connecting plate, and the hanging plate is parallel to the web plate; the plug rod is vertically fixed to the hanging plate, and the plug rod is located between the two hanging plates in the same group; the plug rod is inserted into the wall panel body; and a lower connector, two lower connectors forming a group; used to connect the wall panel body to one of the lower beams among the two adjacent beams, and used to fix the upper connector of the wall panel body located below it on the same beam.

[0007] By adopting the above technical solution, the wall panel body is placed between two adjacent beams and two adjacent columns during use. The bottom end of the wall panel body is connected to the beam using the lower connector. At this time, the two web plates of the same group are pressed against the web plate of the beam, and the insertion rod is inserted into the wall panel body. This completes the connection and fixation between the wall panel body and the building frame. During the installation process, it is not necessary to drill holes in the steel structure frame, nor is it necessary to weld connectors on the steel structure frame. This ensures the load-bearing and wind resistance capacity of the steel structure frame and improves construction efficiency.

[0008] Preferably, the wall panel body includes a fixing frame, which includes a horizontal fixing tube and a vertical fixing tube, and the horizontal fixing tube and the vertical fixing tube are fixedly connected to each other perpendicularly; the insertion rod is inserted into the horizontal fixing tube.

[0009] By adopting the above technical solution, the setting of the fixing frame improves the integrity of the wall panel body and increases the strength of the wall panel body.

[0010] Preferably, a locking element is provided between the transverse fixing tube and the insertion rod; the locking element includes a locking tube, a locking tongue, and a locking spring; the locking tube passes through the transverse fixing tube and is fixedly connected to the transverse fixing tube, and the locking tube is parallel to the insertion rod; the locking tongue passes through the locking tube, is perpendicular to the locking tube, and is slidably connected to the locking tube; one end of the locking spring is fixedly connected to the locking tongue, and the remaining end is fixedly connected to the inner wall of the transverse fixing tube; a locking groove is opened on the outer circumferential side of the two insertion rods in the same group that are close to each other, and the locking tongue is engaged in the locking groove.

[0011] By adopting the above technical solution, when connecting the upper connector to the wall panel body, the insert rod is inserted into the lock tube. At this time, the insert rod abuts against the lock tongue, and the locking spring is compressed. When the lock tongue is facing the lock groove, the locking spring drives the lock tongue to move towards the side closer to the insert rod, thereby locking the two sets of upper connectors. Under the action of the upper connector and the lock, the wall panel body is completely hooked and fixed on the beam, which improves the installation stability of the wall panel body.

[0012] Preferably, the lower connector includes: a limiting plate, a limiting frame, and a stop plate; the limiting frame is a rectangular tubular structure with through holes along its long side, and two limiting frames in the same group are located on both sides of the web of the beam and fitted outside the upper flange, with the limiting frame being the same length as the wall panel body; multiple limiting plates are provided and are equidistantly distributed along the length direction of the upper surface of the limiting frame; two limiting plates in the same group are inserted into the vertical fixed tube; the stop plate is vertically fixedly connected to the limiting frame; the two stop plates in the same group are located outside the two web plates of the same beam.

[0013] By adopting the above technical solution, when using the lower connector to fix the wall panel body, the limiting frame is fitted onto the upper flange of the beam, and the stop plate is pressed against the lower web plate. At this time, the two opposing limiting plates are inserted into the vertical fixing tube, thereby completing the connection of the lower connector, the beam and the wall panel body. The entire process does not require drilling holes in the beam, ensuring the strength of the beam. At the same time, no temporary welding of connectors is required, improving construction efficiency. Furthermore, the lower connector, the upper connector and the fixing frame work together to improve the stability of the wall panel body after installation.

[0014] Preferably, the two lower connectors in the same group are provided with buckle covers opposite the two limiting plates; the buckle covers are inserted into the vertical fixing tube.

[0015] By adopting the above technical solution, the cover is installed outside the two limiting plates in the same group. When the beam at the top is fixed to the wall panel body using the upper connector, the lower connector is used to fix the upper connector. At this time, the cover is used to fix the two limiting plates in the same group without the need for a vertical fixing pipe, thereby improving the applicability of the prefabricated composite exterior wall panel.

[0016] Preferably, the prefabricated composite exterior wall panel also includes an infill wall panel, which is located between the wall panel body and the beam, and between two hanging panels in the same group.

[0017] By adopting the above technical solution, the setting of the infill wall panel facilitates the insertion of the limiting plate into the vertical fixed pipe, and at the same time, the setting of the infill wall panel improves the sealing between the wall panel body and the beam.

[0018] Secondly, this application provides a construction process for prefabricated composite exterior wall panels, employing the following technical solution: The construction process for prefabricated composite exterior wall panels includes the following steps: S1. Lower connector installation: Align the opening of the limiting frame with the upper flange of the beam, so that the limiting frame is fitted outside the upper flange, and the stop plate abuts against the web plate located on the same beam. S2. Wall panel body fixing; place the wall panel body between two adjacent beams and insert the limiting plate into the vertical fixing tube; S3. Installation of infill wall panels: Place the infill wall panels above the wall panel body, so that the upper surface of the infill wall panels abuts against the beam; S4. Fix the upper connector; clamp the web plate with the web plate of the beam and insert the rod into the locking tube.

[0019] By adopting the above technical solution, the installation process of the wall panel body does not require drilling holes in the beam, nor does it require welding connectors on the outside of the beam, thereby improving construction efficiency while ensuring the strength of the beam.

[0020] Preferably, in step S1, the two lower connecting pieces in the same group are fitted with buckle covers facing the two limiting plates.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. During use, the wall panel body is placed between two adjacent beams and two adjacent columns. The bottom of the wall panel body is connected to the beam using the lower connector. At this time, the two web plates of the same group are pressed against the web of the beam, and the insertion rod is inserted into the wall panel body; thus completing the connection and fixation between the wall panel body and the building frame. During the installation process, it is not necessary to drill holes in the steel structure frame, nor is it necessary to weld connectors to the steel structure frame; this ensures the load-bearing and wind resistance capacity of the steel structure frame and improves construction efficiency. 2. When connecting the upper connector to the wall panel body, the insert rod is inserted into the lock tube. At this time, the insert rod abuts against the lock tongue, and the locking spring is compressed. When the lock tongue is aligned with the lock groove, the locking spring drives the lock tongue to move towards the side closer to the insert rod, thereby locking the two sets of upper connectors. Under the action of the upper connector and the locking device, the wall panel body is completely hooked and fixed to the beam, improving the installation stability of the wall panel body. 3. When using the lower connector to fix the wall panel body, place the limiting frame on the upper flange of the beam and make the stop plate press against the lower web plate. At this time, insert the two opposing limiting plates into the vertical fixing tube, thus completing the connection of the lower connector, beam and wall panel body. The entire process does not require drilling holes in the beam, ensuring the strength of the beam. At the same time, no temporary welding of connectors is required, improving construction efficiency. In addition, the lower connector, upper connector and fixing frame work together to improve the stability of the wall panel body after installation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a cross-sectional view to show the upper connector; Figure 3 This is a cross-sectional view to show the lower connector.

[0023] In the diagram, 1. Wall panel body; 11. Fixing frame; 112. Horizontal fixing tube; 111. Vertical fixing tube; 2. Beam; 3. Upper connector; 31. Web plate; 32. Connecting plate; 33. Hanging plate; 34. Insert rod; 341. Lock groove; 4. Lower connector; 41. Limiting plate; 42. Limiting frame; 43. Stop plate; 5. Locking component; 51. Locking tube; 52. Locking tongue; 53. Locking spring; 6. Cover. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0025] This application discloses a prefabricated composite exterior wall panel and its construction process.

[0026] refer to Figure 1 and Figure 2 A prefabricated composite exterior wall panel includes: a wall panel body 1, an upper connector 3, a lower connector 4, and an infill wall panel; the wall panel body 1 is located between two adjacent beams 2 and columns of the building frame; the upper connector 3 is used to connect the wall panel body 1 to the upper beam 2 of the two adjacent beams 2; the upper connector 3 is in pairs. The lower connector 4 is in pairs; it is used to connect the wall panel body 1 to the lower beam 2 of the two adjacent beams 2, and to fix the upper connector 3 of the wall panel body 1 located below it on the same beam 2.

[0027] refer to Figure 1 and Figure 2 Specifically, the upper connector 3 includes a web plate 31, a connecting plate 32, a hanging plate 33, and a rod 34; the web plate 31 is parallel to the web of the beam 2; the two web plates 31 in the same group abut against the two side walls of the web of the beam 2 respectively; the connecting plate 32 is vertically fixed to the web plate 31, and the connecting plate 32 abuts against the upper surface of the lower flange of the beam 2; the hanging plate 33 is vertically fixed to the connecting plate 32, and the hanging plate 33 is parallel to the web plate 31; the rod 34 is vertically fixed to the hanging plate 33, and the rod 34 is located between the two hanging plates 33 in the same group; the rod 34 is inserted into the wall panel body 1.

[0028] refer to Figure 1 and Figure 3 Specifically, the lower connector 4 includes: a limiting plate 41, a limiting frame 42, and a stop plate 43; the limiting frame 42 is a rectangular tubular structure with through holes along its long side, and two limiting frames 42 in the same group are located on both sides of the web of the beam 2 and fitted outside the upper flange, and the limiting frame 42 is the same length as the wall panel body 1; multiple limiting plates 41 are provided and are equidistantly distributed along the length direction of the upper surface of the limiting frame 42; the stop plate 43 is vertically fixedly connected to the limiting frame 42; the two stop plates 43 in the same group are located outside the two web plates 31 of the same beam 2.

[0029] refer to Figure 1 and Figure 2The wall panel body 1 includes a fixing frame 11, which includes a horizontal fixing tube 112 and a vertical fixing tube 111. The horizontal fixing tube 112 and the vertical fixing tube 111 are perpendicularly fixed to each other. The insertion rod 34 is inserted into the horizontal fixing tube 112. The two limiting plates 41 in the same group are inserted into the vertical fixing tube 111. The infill wall panel is located between the wall panel body 1 and the beam 2, and between the two hanging plates 33 in the same group. After the limiting plate 41 is inserted into the vertical fixing tube 111, the infill wall panel is inserted between the wall panel body 1 and the beam 2 and fixed using the upper connector 3.

[0030] When fixing the wall panel body 1 located between two adjacent beams 2 and two columns, firstly, the limiting frame 42 is fitted onto the upper flange of the beam 2, and the two limiting plates 41 in the same group are adjusted to be aligned. At this time, the wall panel body 1 is placed between the two beams 2, and the limiting plates 41 are inserted into the vertical fixing tube 111. The wall panel body 1 and the lower connector 4 are thus fixed in both directions. The wall panel body 1 is then adjusted to be in a vertical state. At this time, the filling wall panel is filled between the wall panel body 1 and the two beams 2; and the insert rod 34 is inserted into the horizontal fixing tube 112; at the same time, the web clamping plate 31 is clamped to the web of the beam 2; the upper wall panel body 1 is then installed, and the stop plate 43 of the lower connector 4 used to fix the upper wall panel body 1 clamps the web clamping plate 31, thereby completing the fixing of the wall panel body 1. No drilling is required for beam 2 during the entire process, and no welding of connectors is needed on the outside of beam 2 during installation; this ensures the strength of beam 2 and improves construction efficiency. The shear resistance of beam 2 is enhanced by the limiting frame 42 and the web plate 31. The infill wall panel facilitates the insertion of the limiting plate 41 into the vertical fixing pipe 111, and also improves the sealing between the wall panel body 1 and beam 2.

[0031] refer to Figure 1 and Figure 3 The two limiting plates 41 facing each other in the same group are provided with buckle covers 6, which are inserted into the vertical fixing tube 111.

[0032] In use, the cover 6 is placed over the two opposing limiting plates 41 in the same group. When the beam 2 at the top is fixed to the wall panel body 1 by the upper connector 3 and the upper connector 3 is fixed by the lower connector 4, the cover 6 fixes the two limiting plates 41 in the same group without the need for the vertical fixing pipe 111. This strengthens the upper connector 3 at the top of the building and improves the applicability of the prefabricated composite exterior wall panel.

[0033] refer to Figure 1 and Figure 2A locking element 5 is provided between the transverse fixing tube 112 and the insertion rod 34. The locking mechanism includes a locking tube 51, a locking tongue 52, and a locking spring 53. The locking tube 51 passes through the transverse fixing tube 112 and is fixedly connected to the transverse fixing tube 112, and the locking tube 51 is parallel to the insertion rod 34. The locking tongue 52 passes through the locking tube 51, is perpendicular to the locking tube 51, and is slidably connected to the locking tube 51. One end of the locking spring 53 is fixedly connected to the locking tongue 52, and the other end is fixedly connected to the inner wall of the transverse fixing tube 112. A locking groove 341 is opened on the outer circumferential side of the two insertion rods 34 in the same group that are close to each other, and the locking tongue 52 is engaged in the locking groove 341.

[0034] When the upper connector 3 is connected to the wall panel body 1, the insert rod 34 is inserted into the lock tube 51. At this time, the insert rod 34 abuts against the lock tongue 52, and the locking spring 53 is compressed. When the lock tongue 52 is aligned with the lock groove 341, the locking spring 53 drives the lock tongue 52 to move towards the side closer to the insert rod 34, thereby locking the two sets of upper connectors 3. Under the action of the upper connector 3 and the lock 5, the wall panel body 1 is completely hooked and fixed on the beam 2, which improves the installation stability of the wall panel body 1.

[0035] The implementation principle of a prefabricated composite exterior wall panel in this application embodiment is as follows: First, the limiting frame 42 is fitted onto the upper flange of the beam, and the two limiting plates 41 in the same group are adjusted to be aligned. At this time, the wall panel body 1 is placed between the two beams 2, and the limiting plates 41 are inserted into the vertical fixing pipe 111. The wall panel body 1 and the lower connector 4 are thus fixed in both directions. The wall panel body 1 is adjusted to be in a vertical state. At this time, the filling wall panel is filled between the wall panel body 1 and the two beams 2; and the insert rod 34 is inserted into the horizontal fixing pipe 112; at the same time, the web clamping plate 31 is clamped to the web of the beam 2; the upper wall panel body 1 is then installed, and the stop plate 43 of the lower connector 4 used to fix the upper wall panel body 1 clamps the web clamping plate 31, thereby completing the fixing of the wall panel body 1.

[0036] This application also discloses a construction process for prefabricated composite exterior wall panels.

[0037] Includes the following steps: S1. Install the lower connector 4; align the opening of the limiting frame 42 with the upper flange of the beam 2, so that the limiting frame 42 is fitted outside the upper flange, and make the stop plate 43 abut against the web plate 31 located on the same beam 2; cover the two lower connectors 4 in the same group with the two limiting plates 41 facing outwards. S2. Fix the wall panel body 1; place the wall panel body 1 between two adjacent beams 2, and insert the limiting plate 41 into the vertical fixing tube 111; S3. Installation of infill wall panels: Place the infill wall panels above the wall panel body 1, so that the upper surface of the infill wall panels abuts against the beam 2; S4. The upper connector 3 is fixed; the web plate 31 clamps the web of the beam 2 and the insertion rod 34 is inserted into the locking tube 51.

[0038] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A prefabricated composite exterior wall panel, characterized in that: include: The wall panel body (1) is located between two adjacent beams (2) and two columns of the building frame; Upper connector (3) is used to connect the wall panel body (1) to one of the two adjacent beams (2) located at the top; two upper connectors (3) form a group; the upper connector (3) includes a web plate (31), a connecting plate (32), a hanging plate (33) and a plug rod (34); the web plate (31) is parallel to the web of the beam (2); the two web plates (31) in the same group abut against the two side walls of the web of the beam (2); the connecting plate (32) is vertically fixed to the web plate (31), and the connecting plate (32) abuts against the upper surface of the lower flange of the beam (2); the hanging plate (33) is vertically fixed to the connecting plate (32), and the hanging plate (33) is parallel to the web plate (31); the plug rod (34) is vertically fixed to the hanging plate (33), and the plug rod (34) is located between the two hanging plates (33) in the same group; the plug rod (34) is inserted into the wall panel body (1); Lower connector (4), two lower connectors (4) are a group; used to connect the wall panel body (1) to one of the two adjacent beams (2) located at the bottom, and used to fix the upper connector (3) of the wall panel body (1) located below it on the same beam (2); The wall panel body (1) includes a fixing frame (11), the fixing frame (11) includes a horizontal fixing tube (112) and a vertical fixing tube (111), the horizontal fixing tube (112) and the vertical fixing tube (111) are perpendicularly fixedly connected to each other; the insertion rod (34) is inserted into the horizontal fixing tube (112); The lower connector (4) includes: a limiting plate (41), a limiting frame (42), and a stop plate (43); the limiting frame (42) is a rectangular tubular structure with through holes along its long side. Two limiting frames (42) in the same group are located on both sides of the web of the beam (2) and fitted outside the upper flange. The limiting frame (42) is the same length as the wall panel body (1); multiple limiting plates (41) are provided and are distributed at equal intervals along the length direction of the upper surface of the limiting frame (42); two limiting plates (41) in the same group are inserted into the vertical fixing tube (111); the stop plate (43) is vertically fixedly connected to the limiting frame (42); the two stop plates (43) in the same group are located outside the two web plates (31) of the same beam (2).

2. The prefabricated composite exterior wall panel according to claim 1, characterized in that: A locking element (5) is provided between the transverse fixing tube (112) and the insertion rod (34); the locking element (5) includes a locking tube (51), a locking tongue (52) and a locking spring (53); the locking tube (51) passes through the transverse fixing tube (112) and is fixedly connected to the transverse fixing tube (112), and the locking tube (51) is parallel to the insertion rod (34); the locking tongue (52) passes through the locking tube (51) and is perpendicular to the locking tube (51) and is slidably connected to the locking tube (51); one end of the locking spring (53) is fixedly connected to the locking tongue (52), and the other end is fixedly connected to the inner wall of the transverse fixing tube (112); a locking groove (341) is provided on the outer circumferential side of the two insertion rods (34) in the same group that are close to each other, and the locking tongue (52) is engaged in the locking groove (341).

3. The prefabricated composite exterior wall panel according to claim 1, characterized in that: The two lower connectors (4) in the same group are provided with buckle covers (6) on the outer sleeves of the two limiting plates (41); the buckle covers (6) are inserted into the vertical fixing tube (111).

4. A prefabricated composite exterior wall panel according to claim 2, characterized in that: It also includes infill wall panels, which are located between the wall panel body (1) and the beam (2), and between the two hanging panels (33) in the same group.

5. The construction process of a prefabricated composite exterior wall panel according to claim 4, characterized in that: Includes the following steps: S1. Install the lower connector (4); align the opening of the limiting frame (42) with the upper flange of the beam (2), so that the limiting frame (42) is fitted outside the upper flange, and the stop plate (43) abuts against the web plate (31) located on the same beam (2); S2. Fix the wall panel body (1); place the wall panel body (1) between two adjacent beams (2), and insert the limiting plate (41) into the vertical fixing tube (111); S3. Install the filling wall panel; place the filling wall panel above the wall panel body (1), so that the upper surface of the filling wall panel abuts against the beam (2); S4. Fix the upper connector (3); clamp the web plate (31) with the web of the beam (2) and insert the rod (34) into the locking tube (51).

6. The construction process of a prefabricated composite exterior wall panel according to claim 5, characterized in that: In step S1, the two lower connecting pieces (4) of the same group are fitted with buckle covers (6) facing the two limiting plates (41).

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