A single-sided composite wall panel used in external hanging system

Abstract

The present invention relates to a single-sided composite wall panel applied to an external hanging system, comprising a single-sided composite external hanging panel, a truss with a truss longitudinal rod, a truss lower chord and a truss web rod, and an external wall connection mechanism; one end of the truss web rod is welded to the truss lower chord and pre-embedded in the single-sided composite external hanging panel, and the other end is welded to the truss longitudinal rod; the trusses are vertically spaced and distributed on the back of the single-sided composite wall panel; the external wall connection mechanism is partially pre-embedded in the single-sided composite external hanging panel, and partially pre-embedded in the cast-in-place beam, and is fixedly connected to the truss at the same time. The present invention forms an auxiliary support structure through the truss web rod, the truss longitudinal rod and the truss lower chord, and forms a certain distance between the auxiliary support structure and the concrete wall panel, so as to ensure the overall thickness of the external hanging wall body and reduce the overall weight of the external hanging wall body. The existence of the truss improves the rigidity and lateral shear resistance of the external hanging panel, and ensures the stability of the external hanging wall panel; at the same time, the thickness of the entire single-sided composite external hanging panel can be adjusted by adding prestress.

Description

Technical Field

[0001] The invention relates to a prefabricated external wall panel, in particular to a single-sided composite wall panel applied to an external hanging system, belonging to the technical field of prefabricated components. Background Art

[0002] Existing building exterior wall panels generally use prefabricated concrete solid walls, which are connected to the main body of the building through auxiliary components such as steel sections. Since the wall panels are solid walls, they are heavy and have high requirements for external load-bearing. If the wall panels are thinned, the overall rigidity and wind and earthquake resistance of the wall panels will be affected. In addition, due to their heavy weight, the existing exterior wall panels are small in size and cannot cross floors, and the degree of standardization and construction efficiency are low. Summary of the invention

[0003] The purpose of the present invention is to provide a single-sided composite wall panel applied to an external hanging system, which forms an auxiliary supporting structure through truss webs, truss longitudinal bars and truss lower chords to form a certain distance between the concrete wall panel and the external hanging wall panel, thereby reducing the overall weight of the external hanging wall while ensuring the overall thickness of the external hanging wall. The presence of the truss improves the rigidity and lateral shear resistance of the external hanging panel, thereby ensuring the stability of the wall panel.

[0004] The present invention adopts the following technical solutions:

[0005] A single-sided composite wall panel applied to an external hanging system, comprising a single-sided composite external hanging panel 10, a truss, and an external wall connecting mechanism; the truss comprises a truss longitudinal rod 9, a truss web rod 18, and a truss lower chord 20; the truss lower chord 20 is integrally pre-embedded in the single-sided composite external hanging panel 10, and the truss longitudinal rod 9 is vertically arranged and parallel to the single-sided composite external hanging panel 10; one end of the truss web rod 18 is welded to the truss lower chord 20 and pre-embedded in the single-sided composite external hanging panel 10, and the other end is welded to the truss longitudinal rod 9; the trusses are vertically spaced and distributed on the back of the single-sided composite wall panel; the external wall connecting mechanism is partially pre-embedded in the single-sided composite external hanging panel 10, and partially pre-embedded in the cast-in-place beam 4, and is fixedly connected to the truss at the same time.

[0006] Preferably, the truss longitudinal rod 9 is a steel pipe 901.

[0007] Furthermore, mortar 901a is injected into the steel pipe 901 .

[0008] Preferably, the truss longitudinal rod 9 is a truss upper chord 902 .

[0009] Furthermore, the truss upper chord 902 is embedded in the precast concrete block 902a.

[0010] Preferably, the truss longitudinal rod 9 is a channel steel 903 , the channel steel 903 is opened inward, and two sides thereof are fixedly connected to the truss web rod 18 .

[0011] Furthermore, the inner space of the channel steel 903 is integrally cast with the concrete 903a.

[0012] Preferably, the top of the single-sided composite wall panel also has a hook 21, one side of the hook is embedded in the single-sided composite exterior panel 10, and the other side is welded to the inner side of the truss longitudinal rod 9.

[0013] Preferably, the exterior wall connection mechanism includes embedded bolts 5, part of which is embedded in the cast-in-place beam 4 and part of which is connected to one side of a steel section, the other side of which is fixedly connected to the truss, and the end of which is embedded and fixed in the single-sided composite exterior panel 10.

[0014] Furthermore, the steel section is a U-shaped steel plate 11.

[0015] Furthermore, the connection part between the single-sided composite wall panel and the cast-in-place beam 4 is divided into an upper connection node and a lower connection node; in the upper connection node, the embedded bolt is L-shaped, and the U-shaped steel plate 11 is slidingly connected to the embedded bolt 5 through a sliding gasket 7 and a nut 8; in the lower connection node, the embedded bolt is an I-shaped bolt with a nut 16, and the U-shaped steel plate 11 is slidingly connected to the cast-in-place beam 4 through the bolt with a nut 16, a gasket 15, and a limiting steel plate 6.

[0016] The beneficial effects of the present invention are as follows: the auxiliary support structure is formed by the truss web, truss longitudinal rod and truss lower chord, and a certain distance is formed between the truss web and the concrete wall panel, so that the overall thickness of the external wall can be guaranteed and the overall weight of the external wall can be reduced. The existence of the truss improves the rigidity and lateral shear resistance of the external panel, and ensures the stability of the external wall panel; at the same time, the thickness of the entire single-sided laminated external panel can be adjusted by adding prestress. This type of external panel is produced by an industrial assembly line, which improves production efficiency and quality. Due to its light weight and high rigidity, it can be made into a high-height external panel to achieve cross-floor construction, thereby improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an interior view of a single-sided composite wall panel applied to an exterior hanging system according to the present invention.

[0018] Figure 2 is a schematic diagram of the upper connection node.

[0019] Figure 3 is a schematic diagram of the lower connection node.

[0020] Figure 4 It is a schematic diagram of the lifting node.

[0021] Figure 5 It is a schematic diagram of the horizontal waterproof node.

[0022] Figure 6 It is a schematic diagram of the vertical waterproof node.

[0023] Figure 7 It is a schematic diagram of a steel truss.

[0024] Figure 8 It is a schematic diagram of a steel tube truss.

[0025] Fig. 9 It is a schematic diagram of concrete-filled steel tube truss.

[0026] Fig.10 It is a schematic diagram of a concrete truss.

[0027] Fig.11 It is a schematic diagram of a channel steel truss.

[0028] Fig.12 It is a schematic diagram of a channel steel concrete truss.

[0029] In the figure, 1. upper connection node, 2. lower connection node, 3. lifting node, 4. cast-in-place beam, 5. embedded bolt, 6. welding point, 7. sliding gasket, 8. nut, 9. truss longitudinal rod, 10. single-sided composite external plate, 11. U-shaped steel plate, 12. vertical distribution reinforcement, 13. transverse distribution reinforcement, 14. limit steel plate, 15. gasket, 16. bolt with nut, 17. welding surface of steel tube truss and hook, 18. truss web, 19. sealant, 20. truss lower chord, 21. hook; 901. steel pipe, 901a. mortar, 902. truss upper chord, 902a. precast concrete block, 903. channel steel, 903a. concrete. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0031] See also Figure 1-Figure 12 A single-sided composite wall panel used in an external hanging system includes a single-sided composite external hanging panel 10, a truss, and an external wall connecting mechanism; the truss includes a truss longitudinal rod 9, a truss web rod 18, and a truss lower chord 20; the truss lower chord 20 is integrally embedded in the single-sided composite external hanging panel 10, and the truss longitudinal rod 9 is vertically arranged and parallel to the single-sided composite external hanging panel 10; one end of the truss web rod 18 is welded to the truss lower chord 20 and embedded in the single-sided composite external hanging panel 10, and the other end is welded to the truss longitudinal rod 9; the trusses are vertically spaced and distributed on the back of the single-sided composite wall panel; the external wall connecting mechanism is partially embedded in the single-sided composite external hanging panel 10, and partially embedded in the cast-in-place beam 4, and is fixedly connected to the truss at the same time.

[0032] See also Figure 8 , the truss longitudinal rod 9 can be a steel pipe 901.

[0033] For further information, see Fig. 9 , mortar 901a is injected into the steel pipe 901.

[0034] See also Figure 7 , the truss longitudinal rod 9 can be a truss upper chord 902.

[0035] For further information, see Fig.10 The truss upper chord 902 is embedded in the precast concrete block 902a.

[0036] See also Fig.11 The truss longitudinal rod 9 is a channel steel 903 , the channel steel 903 is opened inward, and its two sides are fixedly connected to the truss web rod 18 .

[0037] For further information, see Fig.12 The inner space of the channel steel 903 is cast integrally with the concrete 903a.

[0038] See also Figure 4 The top of the single-sided composite wall panel also has a hook 21, one side of the hook is embedded in the single-sided composite external panel 10, and the other side is fixedly connected to the inner side of the truss longitudinal rod 9. This ingenious structural design realizes the lifting function of the external single-sided composite wall panel.

[0039] See also Figure 2 and Figure 3 Preferably, the exterior wall connection mechanism includes embedded bolts 5, part of which is embedded in the cast-in-place beam 4 and part of which is connected to one side of a steel section, the other side of the steel section is fixedly connected to the truss, and the end of which is embedded and fixed in the single-sided composite exterior panel 10.

[0040] For further information, see Figure 2 and Figure 3 , the steel section is a U-shaped steel plate 11.

[0041] See also Figure 2 The connection part between the single-sided composite wall panel and the cast-in-place beam 4 is divided into an upper connection node and a lower connection node; in the upper connection node, the embedded bolt is L-shaped, and the U-shaped steel plate 11 is slidably connected to the embedded bolt 5 through a sliding gasket 7 and a nut 8; the connection method shown in the figure is a bottom-bearing connection, that is, the upper connection node does not bear weight and can be displaced up and down, and the lower connection node bears weight and can only be displaced upward.

[0042] See also Figure 3In the lower connection node, the embedded bolt is an I-shaped nut bolt 16, and the U-shaped steel plate 11 is slidably connected to the cast-in-place beam 4 through the nut bolt 16, the gasket 15, and the limit steel plate 6. The connection method shown in the figure is a bottom-bearing connection, that is, the upper connection node does not bear weight and can move up and down, and the lower connection node bears weight and can only move upward.

[0043] The present invention forms an auxiliary support structure through truss webs, truss longitudinal bars and truss lower chords, and forms a certain distance between the truss and the concrete wall panel, which can ensure the overall thickness of the external wall and reduce the overall weight of the external wall. The existence of the truss improves the rigidity and lateral shear resistance of the external panel, ensuring the stability of the external wall panel; at the same time, the thickness of the entire single-sided laminated external panel can be adjusted by adding prestress. This type of external panel is produced by an industrial assembly line to improve production efficiency and quality. Due to its light weight and high rigidity, it can be made into a high-height external panel to achieve cross-floor construction, thereby improving construction efficiency.

[0044] In summary, the wall panel of the present invention is used as an external wall panel, and is composed of a precast concrete panel and a truss; the truss of the wall panel is composed of an upper chord, a web and a lower chord, wherein the upper chord can be a steel bar, a steel tube, steel tube concrete, concrete, channel steel or channel steel concrete; the wall panel is an external hanging system, including a node connection system of the wall panel, a hoisting system of the wall panel and a joint connection system;

[0045] It should be noted that node connection, hoisting method and joint connection are only one of the connection methods, and similar connection methods are all within the scope of protection required by this application. According to the height of the wall panel, it can be divided into prestressed wall panels and non-prestressed wall panels.

[0046] Advantages:

[0047] 1. The outer surface of the single-sided laminated external panel can be plain concrete (embossed as required), without the need for additional paint, and naturally beautiful; it can also be integrated with finishes, such as tiles, etc.;

[0048] 2. The size of the wall panels can be freely customized. When the height is small, only non-prestressed wall panels are needed; when the height is large, prestressed wall panels can be used;

[0049] 3. The external wall panels are made of reinforced concrete material, which can be integrated with insulation on the inside, and have good fire resistance and strong corrosion resistance;

[0050] 4. The wall panels are light in weight, and the external panels with a larger height can span across floors, which greatly improves the construction efficiency;

[0051] 5. The wall panels have high rigidity, and the presence of trusses improves the stability of the exterior panels and can better resist lateral forces, such as wind loads.

[0052] 6. The production of external wall panels is similar to that of composite floor slabs. It uses an automated assembly line and does not require special customized molds. It is highly efficient, high-quality, and reduces a lot of manpower and material waste.

[0053] Factory production steps:

[0054] Non-prestressed single-sided composite cladding:

[0055] 1. Clean the mold platform and apply the adhesive film agent, arrange the horizontal and vertical distribution reinforcements in sequence according to the drawings and tie them firmly with steel wire;

[0056] 2. Place the galvanized trusses and galvanized U-shaped steel plates at the connection nodes according to the positioning, and use steel wire to fix the trusses, steel mesh and galvanized U-shaped steel plates;

[0057] 3. Fix the hook on the truss as shown in the figure, and weld one side of the hook to the truss steel pipe;

[0058] 4. After the steel bars and all embedded parts are tied, the formwork is supported and concrete is poured, and then sent to the curing kiln for curing.

[0059] Prestressed single-sided composite cladding

[0060] 1. Clean the mold table and apply the adhesive film agent. Arrange the vertical stress-relieving spiral rib steel wire according to the drawing and tension it using tensioning equipment;

[0061] 2. Arrange transverse distribution reinforcement above the vertical steel wire and tie it with steel wire;

[0062] 3. Place and fix the galvanized truss and galvanized U-shaped steel plates at the connection nodes according to the positioning, and weld the hooks to the truss;

[0063] 4. Support the formwork, build the concrete, water and cover for maintenance;

[0064] 5. After curing is completed, remove the mold, cut off the stress-relieving spiral rib steel wire, and release the prestress.

[0065] On-site construction steps:

[0066] 1. Cast the cast-in-place beams of the upper and lower connection nodes and embed the connecting bolts according to the positioning;

[0067] 2. Hoist the single-sided laminated external panels and buckle the upper and lower U-shaped steel plates of the external panels onto the embedded bolts of the cast-in-place beams at the same time;

[0068] 3. Adjust the position of the external panel, level it, install the sliding gasket, nut, etc., and weld it at the position shown in the figure;

[0069] 4. After the external panels are installed, apply sealant to the horizontal and vertical joints to take waterproofing measures.

[0070] The above are preferred embodiments of the present invention. A person skilled in the art may make various changes or improvements on this basis. Without departing from the general concept of the present invention, these changes or improvements should fall within the scope of protection claimed by the present invention.

Claims

1. A single-sided composite wall panel used in an external hanging system, characterized in that: It comprises a single-sided laminated external hanging plate (10), a truss, and an external wall connection mechanism; the truss comprises a truss longitudinal rod (9), a truss web rod (18), and a truss lower chord (20); The truss lower chord (20) is integrally pre-embedded in the single-sided laminated external hanging plate (10), and the truss longitudinal rod (9) is vertically arranged and parallel to the single-sided laminated external hanging plate (10); One end of the truss web member (18) is welded to the truss lower chord (20) and pre-buried in the single-sided laminated external panel (10), and the other end is welded to the truss longitudinal rod (9); The trusses are vertically spaced and distributed on the back of the single-sided composite wall panel; The exterior wall connection mechanism is partially embedded in the single-sided composite exterior panel (10), and partially embedded in the cast-in-place beam (4), and is fixedly connected to the truss at the same time; The exterior wall connection mechanism comprises embedded bolts (5), part of which is embedded in the cast-in-place beam (4) and part of which is connected to one side of a steel section, the other side of which is fixedly connected to the truss, and the end of which is embedded and fixed in the single-sided laminated exterior panel (10); The steel section is a U-shaped steel plate (11); The connection portion between the single-sided composite wall panel and the cast-in-place beam (4) is divided into an upper connection node and a lower connection node; In the upper connection node, the embedded bolt is L-shaped, and the U-shaped steel plate (11) is slidably connected to the embedded bolt (5) via a sliding gasket (7) and a nut (8); In the lower connection node, the embedded bolt is an I-shaped bolt with a nut (16), and the U-shaped steel plate (11) is slidably connected to the cast-in-place beam (4) via the bolt with a nut (16), a gasket (15), and a limit steel plate (6); The truss longitudinal rod (9) is a steel pipe (901).

2. The single-sided composite wall panel for external hanging system according to claim 1, characterized in that: Mortar (901a) is injected into the steel pipe (901).

3. The single-sided composite wall panel for external hanging system according to claim 1, characterized in that: The top of the single-sided laminated wall panel also has a hook (21), one side of the hook is pre-buried in the single-sided laminated external panel (10), and the other side is welded to the inner side of the truss longitudinal rod (9).

Images