Fabricated UHPC (Ultra High Performance Concrete) sandwich board wall

Abstract

The utility model provides an assembly type UHPC (Ultra High Performance Concrete) board wall, which relates to the technical field of board walls, and comprises a wall body, the wall body comprises a first board layer, a sandwich layer and a second board layer, the first board layer and the second board layer are ultra high performance concrete wall boards, the sandwich layer comprises a steel bar structure and a polystyrene board, the polystyrene board is arranged in the steel bar structure, and the polystyrene board is arranged in the second board layer. The sandwich layer is arranged between the first plate layer and the second plate layer. The sandwich board wall comprises a first wall body and a second wall body, the wall body structure is adopted by the first wall body and the second wall body, a filling layer is arranged between the first wall body and the second wall body, and the assembly type UHPC sandwich board wall is further provided with a limiting block, a limiting plate and a fixing device. By arranging the limiting block and the limiting plate, a worker can align and assemble the first wall body and the second wall body on site, then the first wall body and the second wall body are fixed through the fixing device, the whole assembling process is easy and rapid to operate, extra tools are not needed, and the worker can use the wall conveniently.

Description

Technical Field

[0001] The present application relates to the technical field of panel walls, and in particular to an assembled UHPC sandwich panel wall. Background Art

[0002] The sandwich panel walls of the related art are all prefabricated and cast, the thickness of the wall panels is fixed and cannot be adjusted, and are not assembled on site.

[0003] However, in practice, the thickness of the wall panels is adjusted according to actual needs, requiring on-site assembly of the sandwich panel wall. During the assembly process of the sandwich panel wall, due to the heavy weight and large size of the wall panels, the two panels often become misaligned during assembly, often resulting in errors. This application proposes an assembled UHPC sandwich panel wall that enables on-site assembly of wall panels while ensuring accurate alignment. It also allows for adjustment of the distance between the wall panels, and thus the thickness of the wall panels, making assembly more flexible and simple. Utility Model Content

[0004] The purpose of this application is to overcome the shortcomings of the related art and to propose an assembled UHPC sandwich panel wall.

[0005] The present application adopts the following technical solution: an assembled UHPC sandwich panel wall, including a wall body, wherein the wall body includes a first plate layer, a sandwich layer, and a second plate layer, the first plate layer and the second plate layer are ultra-high performance concrete wall panels, the sandwich layer includes a steel structure and a polystyrene board, the polystyrene board is arranged in the steel structure, and the sandwich layer is arranged between the first plate layer and the second plate layer.

[0006] Furthermore, the steel structure includes a mesh and a frame, and the mesh and the frame are welded.

[0007] Furthermore, the sandwich panel wall includes a first wall and a second wall, the first wall and the second wall adopt the wall structure, a filling layer is provided between the first wall and the second wall, a limiting block is provided on the inner wall of the first wall, and a limiting plate is provided on the inner wall of the second wall, the limiting block corresponds to the limiting plate, and the assembled UHPC sandwich panel wall is also provided with a fixing device, which is used to connect the first wall and the second wall.

[0008] Furthermore, the limiting block is provided with a limiting protrusion, and the limiting plate is provided with a slot that matches the limiting protrusion.

[0009] Furthermore, the fixing device is equipped with a plurality of pins, which can be fixedly connected to the first wall and the second wall.

[0010] Furthermore, a single latch is provided with a hole, and the corresponding holes at the same position of multiple latches can be connected in series by long steel bars.

[0011] Furthermore, a single latch is provided with a plurality of holes, and the holes at different positions are used to adjust the distance between the first wall and the second wall.

[0012] Furthermore, the filling layer is configured as foam rubber.

[0013] Furthermore, a steel frame is provided between the first wall and the second wall to further strengthen the fixation and strength between the first wall and the second wall.

[0014] Furthermore, hanging rings are provided on the first wall and the second wall.

[0015] In summary, this application includes at least one of the following beneficial technical effects:

[0016] 1. The setting of the limit block and limit plate solves the problem of misalignment between the first and second walls during on-site assembly. It enables on-site assembly of wall panels while ensuring the accuracy of alignment.

[0017] 2. A single latch is provided with multiple holes, and long steel bars are inserted into different holes to adjust the distance between the first wall and the second wall, so as to adjust the thickness of the wall panel on site according to actual needs.

[0018] 3. A steel frame is provided between the first wall and the second wall to further strengthen the fixation and strength between the first wall and the second wall.

[0019] 4. Lifting rings are provided on the first wall and the second wall for on-site assembly.

[0020] 5. This application can realize on-site assembly of wall panels while ensuring the accuracy of alignment. It can also adjust the distance between wall panels and thus adjust the thickness of the wall panels, making assembly more flexible and simple.

[0021] 6. Based on the usage scenarios of building exterior wall panels, innovate the exterior wall panel structural design and develop lightweight, durable, and well-insulated prefabricated ultra-high performance concrete building exterior wall panel structures; by optimizing the ultra-high performance concrete mix ratio and adjusting the production process, improve the overall economic efficiency of the sandwich panel wall.

[0022] 7. Use ultra-high performance concrete materials and make full use of their ultra-high strength, ultra-long durability and ultra-high toughness to improve the durability of prefabricated panel walls, reduce panel thickness and deadweight, meet the construction requirements of exterior wall panels, and at the same time improve prefabrication quality and reduce maintenance during the operation period. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the side thickness structure of the sandwich layer.

[0024] Figure 2 This is the front view of the steel structure.

[0025] Figure 3 It is a schematic diagram of the overall structure of the sandwich panel wall.

[0026] Figure 4 Schematic diagram of the connection between the limiting protrusion and the card slot.

[0027] Explanation of the accompanying reference numerals: 1. First wall; 2. Second wall; 3. Filling layer; 4. Limiting block; 5. Limiting plate; 6. Limiting protrusion; 7. Slot; 8. Pin; 9. Hole; 11. Steel frame; 14. Lifting ring; 21. Sandwich layer; 22. Steel structure; 23. Polystyrene board; 25. Mesh; 24. Tie rod. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-4 This application is described in further detail.

[0029] The embodiments of the present application disclose an assembled UHPC sandwich panel wall.

[0030] Example 1: Reference Figure 1 and Figure 2 A prefabricated UHPC sandwich panel wall includes a wall body, wherein the wall body includes a first plate layer, a sandwich layer 21, and a second plate layer. The first plate layer and the second plate layer are ultra-high performance concrete wall panels. The sandwich layer 21 includes a steel structure 22 and a polystyrene board 23. The polystyrene board 23 is arranged in the steel structure 22, and the sandwich layer 21 is arranged between the first plate layer and the second plate layer.

[0031] Reinforcement structure 22 is configured as a C-shaped steel frame. The C-shaped steel frame consists of two layers of mesh and a frame, which are welded to the frame. The mesh configuration reduces material consumption. The C-shaped steel frame is manufactured using spot welding. Before spot welding, the C-shaped steel frame is controlled to a rectangular size of 3950×1950mm in length and width, with a diagonal length of 4406mm. The deviation is controlled within ±5mm. After welding, the weld points need to be polished and smoothed.

[0032] Assembly and welding of the frame and steel mesh 25: The mesh surface is composed of multiple individual meshes 25, which are welded to the frame. The diameter of the steel bars in each mesh 25 is set to 4mm, and the mesh 25 hole spacing is set to 20×20cm. Multiple meshes 25 are assembled into a single unit, with meshes of a standard size of 1×2m. The mesh 25 must be securely tied to prevent it from loosening under stress. The mesh 25 is welded to the frame and then tightened before being welded securely to prevent the mesh 25 from sagging and exposing the steel bars. This also prevents damage to the mesh 25 or the frame during welding. The mesh 25 is securely assembled and tied, and both layers of mesh are reinforced with tie bars 24. After each layer of mesh 25 is welded and secured, it is reinforced with C6 tie bars 24 to prevent sagging.

[0033] Installation and positioning of the frame, polystyrene panels 23, and embedded components: The reinforced steel structure 22 is supported by 25mm steel bar heads, which are welded and positioned to ensure the thickness of the sandwich panel's protective layer. The polystyrene panels 23 are standard sizes and are reinforced with tie bars 24 to prevent displacement. The polystyrene panels 23 are assembled integrally with the frame and steel mesh 25.

[0034] In this embodiment, the first or second slab layer is cast on-site using high-performance concrete, with the ultra-high-performance concrete strength set to 100 MPa. Side forms are cut using smooth wooden formwork. After the side forms are assembled and their dimensions verified, they are reinforced using magnetic boxes and reinforced steel bars to ensure a tight fit between the side forms and the frame, preventing leakage. The casting height of the first or second slab layer is 30 mm. The side forms serve as a positioning limit for the casting.

[0035] Layered pouring and vibration: The pouring process uses a hopper mixing station to receive materials, and flat cars transport them to the production workshop for direct unloading via a door crane. The UHPC exit expansion range is controlled between 750mm and 800mm. After the first slab layer is poured to the preset height, the polystyrene board 23 and C-shaped steel are immediately placed in the mold. After placement, the top surface protective layer thickness is immediately checked to ensure it reaches 25±3mm. After initial setting, the second slab layer is poured. The duration of a single pour is controlled within 1.5 hours to prevent the UHPC slump from decreasing and causing voids in the slab. Before pouring, a hole 9 is drilled in the center of the polystyrene board 23 to observe the flow of UHPC at the bottom, depending on the actual situation. During the pouring process, vibration is performed intermittently to accelerate the flow efficiency of the UHPC. The duration of a single vibration should not exceed 1 minute.

[0036] By setting side formwork to limit the pouring, on-site pouring is achieved for assembly. By optimizing the mix ratio of ultra-high performance concrete and adjusting the production process, the overall economy of the sandwich panel wall is improved.

[0037] Example 2: Reference Figure 3 The present invention provides an assembled UHPC sandwich panel wall, comprising two walls, namely a first wall 1 and a second wall 2. A filling layer 3 is provided between the first wall 1 and the second wall 2. A limit block 4 is provided on the inner wall of the first wall 1, and a limit plate 5 is provided on the inner wall of the second wall 2. The limit blocks 4 correspond to the limit plates 5. The assembled UHPC sandwich panel wall is also provided with a fixing device for connecting the first wall 1 and the second wall 2.

[0038] The arrangement of the limiting block 4 and the limiting plate 5 solves the problem of misalignment during on-site assembly of the first wall 1 and the second wall 2. The embodiment of the present application uses two limiting blocks 4 and two limiting plates 5 in common.

[0039] Reference Figure 4The limiting block 4 is provided with an integrally formed limiting protrusion 6. One end of the limiting block 4 is fixedly connected to the first wall 1. The limiting plate 5 is provided with a slot 7 for matching the limiting protrusion 6. ， The direction of the slot 7 is toward the limiting protrusion 6, and the other end of the limiting plate 5 without the slot 7 is fixedly connected to the second wall 2. In this embodiment, the cross-section of the limiting protrusion 6 is set to be triangular, the shape of the slot 7 corresponds to the limiting protrusion 6, and the width of the slot 7 is greater than the width of the limiting protrusion 6. The setting of the limiting protrusion 6 and the slot 7 is used to align the first wall 1 and the second wall 2. During on-site assembly, the first wall 1 moves toward the second wall 2 along the direction in which the limiting protrusion 6 is inserted into the slot 7 until the limiting protrusion 6 and the slot 7 are aligned, that is, the first wall 1 is aligned with the second wall 2. In this embodiment, the first wall 1 and the second wall 2 have the same size. If the actual situation requires that the first wall 1 and the second wall 2 have different sizes, it is also possible to align the limiting protrusion 6 on the limiting block 4 and the slot 7 on the limiting plate 5 to the appropriate position before fixing the first wall 1 and the second wall 2.

[0040] The assembled UHPC sandwich panel wall is also provided with a fixing device, which is equipped with a plurality of pins 8, and the pins 8 can be fixedly connected to the first wall 1 and the second wall 2. In the embodiment of the present application, the pin 8 includes a limiting portion and an insertion portion, the limiting portion is fixedly connected to the first wall 1, and the insertion portion is fixedly connected to the second wall 2. The limiting portion and the insertion portion fit together, and a plurality of holes 9 are provided at corresponding positions on the side walls of the limiting portion and the insertion portion for inserting long steel bars to fix the first wall 1 and the second wall 2 in series. In the embodiment of the present application, the direction of the hole 9 is set to the same direction as the direction of the long steel bar, and can be set to the horizontal or vertical direction according to actual needs. A single pin 8 is provided with a plurality of holes 9 for adjusting the distance between the first wall 1 and the second wall 2, and adjusting the thickness of the wall panel on site according to actual needs.

[0041] Reference Figure 3 A steel frame 11 is provided between the first wall 1 and the second wall 2 to further strengthen the fixation and strength between the first wall 1 and the second wall 2. The steel frame 11 is fixedly connected to the first wall 1 or the second wall 2 to strengthen the strength and hardness between the first wall 1 and the second wall 2.

[0042] The first wall 1 and the second wall 2 are provided with lifting rings for controlling the movement of the first wall 1 and the second wall 2 during on-site assembly.

[0043] During the wall production process, the limit blocks 4, the limit plates 5, the latches 8, and the steel frames 11 are pre-buried in the corresponding positions of the first wall 1 and the second wall 2. The filling layer 3 is set to foam glue, which is used to fill and fix the first wall 1 and the second wall 2. The filling layer 3 is filled during on-site assembly.

[0044] The implementation principle of an assembled UHPC sandwich panel wall in the embodiment of the present application is as follows:

[0045] First, use the lifting ring to insert the first wall 1 along the direction of the stopper protrusion 6 toward the slot 7, bringing it closer to the second wall 2. However, only partially insert the stopper protrusion 6 into the stopper slot. At this point, align the inserted portion with the stopper. Then, partially insert the latch 8 into the stopper. Adjust the position of the holes 9 to adjust the thickness of the entire wall panel. After determining the position of the holes 9, insert the long steel bars into the corresponding holes 9. During this adjustment process, fully insert the stopper protrusion 6 into the stopper slot to align the holes. Then, fill the gap between the first wall 1 and the second wall 2 with foam glue. Finally, wait for assembly to be complete.

[0046] The present application can solve the problem of misalignment of the first wall 1 and the second wall 2 during on-site assembly, realize on-site assembly of wall panels, ensure the accuracy of alignment, and adjust the distance between the wall panels and thus adjust the thickness of the wall panels, making assembly more flexible and simple.

[0047] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. An assembled UHPC sandwich panel wall, characterized by: The invention comprises a wall body, wherein the wall body comprises a first plate layer, a sandwich layer (21), and a second plate layer, wherein the first plate layer and the second plate layer are ultra-high performance concrete wall panels, the sandwich layer (21) comprises a steel structure (22) and a polystyrene board (23), the polystyrene board (23) is arranged in the steel structure (22), and the sandwich layer (21) is arranged between the first plate layer and the second plate layer.

2. The assembled UHPC sandwich panel wall according to claim 1, characterized in that: The steel structure (22) comprises a mesh surface and a frame, and the mesh surface and the frame are welded.

3. The assembled UHPC sandwich panel wall according to claim 1, characterized in that: The sandwich panel wall comprises a first wall (1) and a second wall (2), wherein the first wall (1) and the second wall (2) adopt the wall structure, a filling layer (3) is provided between the first wall (1) and the second wall (2), a limiting block (4) is provided on the inner wall of the first wall (1), and a limiting plate (5) is provided on the inner wall of the second wall (2), wherein the limiting block (4) corresponds to the limiting plate (5), and the assembled UHPC sandwich panel wall is further provided with a fixing device, which is used to connect the first wall (1) and the second wall (2).

4. The assembled UHPC sandwich panel wall according to claim 3, characterized in that: The limiting block (4) is provided with a limiting protrusion (6), and the limiting plate (5) is provided with a clamping groove (7) that matches the limiting protrusion (6).

5. The assembled UHPC sandwich panel wall according to claim 4, characterized in that: The fixing device is equipped with a plurality of latches (8), and the latches (8) can be fixedly connected to the first wall (1) and the second wall (2).

6. The assembled UHPC sandwich panel wall according to claim 5, characterized in that: A hole (9) is provided on a single latch pin (8), and corresponding holes (9) at the same position of a plurality of latch pins (8) can be connected in series by long steel bars.

7. The assembled UHPC sandwich panel wall according to claim 6, characterized in that: A plurality of holes (9) are provided on a single latch (8), and the holes (9) at different positions are used to adjust the distance between the first wall (1) and the second wall (2).

8. The assembled UHPC sandwich panel wall according to claim 7, characterized in that: The filling layer (3) is configured as foamed rubber.

9. The assembled UHPC sandwich panel wall according to claim 8, characterized in that: A steel frame (11) is provided between the first wall (1) and the second wall (2) to further strengthen the fixation and strength between the first wall (1) and the second wall (2).

10. The assembled UHPC sandwich panel wall according to claim 7, characterized in that: Hanging rings (14) are provided on the first wall (1) and the second wall (2).

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