Steam-curing-free limestone machine-made sand UHPC (Ultra High Performance Concrete) externally-hung wallboard

Abstract

The utility model belongs to the technical field of UHPC (Ultra High Performance Concrete) external wall panels, and particularly relates to a steam-curing-free limestone machine-made sand UHPC external wall panel which comprises a steam-curing-free UHPC external wall panel, and the inner side surface of the steam-curing-free UHPC external wall panel protrudes outwards to form a rectangular connecting part; the mounting frame is fixed on the connecting part; the keel frame is formed by welding cross beams and longitudinal beams; the cross beams and the longitudinal beams are crossed to form a plurality of mounting windows, and the mounting frames are fixed in the mounting windows. The mounting frame disclosed by the utility model is beneficial to conveniently, stably and firmly fixing the steam-curing-free UHPC external wall panel subsequently. In addition, through cooperation of the first installation piece and the second installation piece, the steam-curing-free UHPC external wall panel can be stably and firmly fixed to the installation window of the keel frame. The UHPC externally-hung wallboard is convenient to install and fix, and can be suitable for fixedly installing the steam-curing-free UHPC externally-hung wallboard which is large in area and heavy in weight.

Description

Technical Field

[0001] This utility model belongs to the technical field of UHPC exterior wall cladding panels, specifically relating to a non-autoclaved limestone manufactured sand UHPC exterior wall cladding panel. Background Technology

[0002] Ultra-High Performance Concrete (UHPC) is a cement-based composite material that achieves good mechanical properties through natural curing at room temperature. Compared to traditional UHPC, it has lower energy consumption and manufacturing costs. UHPC exhibits excellent durability, wear resistance, and blast resistance, making it suitable for manufacturing exterior wall panels in the construction industry.

[0003] Manufactured limestone sand is a type of sedimentary clastic sandstone composed of limestone particles. It is formed by the weathering, erosion, and transport of these particles in a natural environment. These particles may originate from the breakage and abrasion of limestone strata, subsequently being carried away by water or wind and deposited elsewhere to form sandstone. Manufactured limestone sand typically exhibits a uniform and fine particle distribution, and the particles may contain some cementing material, which gives this sandstone good wear resistance and compressive strength. Manufactured limestone sand is commonly used in construction engineering and other fields, serving as an important raw material in building materials such as concrete, masonry, and roadbeds.

[0004] UHPC wall panels are disclosed in the prior art. For example, CN220336237U discloses an assembled prestressed UHPC curtain wall panel, which includes a prestressed UHPC substrate, mounting components installed near the upper and lower ends of the prestressed UHPC substrate, reinforcing ribs installed at the left and right ends of the prestressed UHPC substrate, and a groove installed at the upper end of the prestressed UHPC substrate. Pre-embedded sleeves are provided in the prestressed UHPC substrate at the positions corresponding to the mounting components and reinforcing ribs. The mounting components and reinforcing ribs are connected to the pre-embedded sleeves. The mounting components and reinforcing ribs are located on the back of the prestressed UHPC substrate, and a thermal insulation and sound insulation board is installed between two reinforcing ribs. Sealing strips are installed on the sides of the reinforcing ribs, as well as the sides and lower ends of the prestressed UHPC substrate. Multiple mounting points are provided on the side of the reinforcing ribs away from the prestressed UHPC substrate. When installing the prestressed UHPC curtain wall panel in this patent, the prefabricated U-shaped mounting points at the four corners of the panel are directly connected to the pre-installed screws and embedded parts on site, forming a fully functional and easy-to-install prefabricated curtain wall panel with excellent economic performance. Undeniably, the prefabricated prestressed UHPC curtain wall panel disclosed in this patent can indeed achieve the above-mentioned effects, but it still has certain shortcomings: it relies solely on the prefabricated U-shaped mounting points at the four corners of the panel to connect and fix it to external screws and embedded parts, thus achieving the fixed installation of the entire prestressed UHPC curtain wall panel. This results in a small contact area with the external installation parts and few connection points, posing a risk of insecure installation.

[0005] In addition, CN112031228B discloses a PC external wall panel connection structure and an installation method for PC external wall panels, including a steel beam, a connector located on one side of the steel beam, and several PC external wall panels. The steel beam includes longitudinal beams and transverse beams arranged in a cross shape. The connector includes a clamping component that connects to one side of the cross-shaped intersection of the longitudinal beams and transverse beams. The corner positions of four adjacent PC external wall panels are fixedly connected to the same connector through locking components. In the patent disclosure, the four corner positions of the PC external wall panels are all connected to the steel beams using connectors, making the PC external wall panels bear force evenly and increasing the total contact area between the two. The fact that four adjacent PC external wall panels are all connected through the same connector strengthens the connection stability between the wall panels and improves the overall wind resistance and pressure bearing effect of the PC external wall panels. Of course, the PC external wall panel connection structure disclosed in this patent can also be used for the installation and fixing of UHPC external wall panels, which can increase the contact area between the external wall panel and the installation location, making the external wall panel firmly fixed to the steel beam. However, it also has some shortcomings: because its connectors are connected to the longitudinal and transverse beams at the cross intersection via clamping components, it can only fix the four top corners of the external wall panel. When the area of ​​the external wall panel is large, fixing only the four top corners is not enough to provide a stable and secure fixation. In addition, when installing and fixing the external wall panel, it mainly relies on the connectors to support the panel, and the weight of the panel is concentrated on the two clamping steels located at the top of the connectors. This limits the load-bearing capacity of the connectors and makes them unsuitable for installing and fixing heavy external wall panels.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this utility model is to provide a non-autoclaved limestone manufactured sand UHPC external wall panel to solve the problems existing in the external wall panel connection structure in the background art when installing and fixing the external wall panel.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A non-autoclaved limestone manufactured sand UHPC exterior wall panel includes:

[0010] The non-steam-curing UHPC exterior wall panel has a rectangular connecting part that protrudes outward from the inner side of the non-steam-curing UHPC exterior wall panel. Multiple threaded sleeves are evenly embedded around the edge of the connecting part.

[0011] The mounting frame is rectangular, and a relief groove is recessed on the inner side of the mounting frame at a position corresponding to the threaded sleeve. A mounting bolt corresponding to the threaded sleeve is provided in the relief groove.

[0012] The keel frame is welded from horizontal beams and vertical beams; the horizontal beams and vertical beams are arranged in a cross shape to form multiple installation windows; a first mounting component corresponding to the four corners of the installation window is welded to each of the four corners of the installation frame; a second mounting component corresponding to the side of the installation window is welded to each of the four corners of the installation frame.

[0013] Preferably, the outer walls of the connecting part and the mounting frame are fitted to the inner wall at the corresponding position of the mounting window.

[0014] Preferably, the clearance groove is provided with multiple reinforcing ribs at intervals; the inner end of the mounting bolt passes through the mounting frame and is threaded to the threaded sleeve.

[0015] Preferably, the first mounting component includes a fan-shaped limiting plate welded to the top corner of the mounting window and a right-angle fixing plate integrally formed on the side of the fan-shaped limiting plate near the mounting frame. A limiting groove is formed between the right-angle fixing plate and the mounting window. When the steam-free UHPC external wall panel is installed, the top corner of the mounting frame is located in the limiting groove, and the two sides of the right-angle fixing plate are respectively fixed to the mounting frame by the first bolt.

[0016] Preferably, the inner end of the first bolt passes through the right-angle fixing plate and is threaded onto the reinforcing rib at the corresponding position of the clearance groove.

[0017] Preferably, the second mounting component includes an auxiliary limiting plate welded to the inner wall of the mounting window and an extension plate vertically fixed to the inner end of the auxiliary limiting plate and facing the steam-free UHPC external wall panel; when the steam-free UHPC external wall panel is installed, the extension plate is clamped on the inner wall of the mounting frame, and the extension plate is fixed to the mounting frame by a second bolt.

[0018] Preferably, the inner end of the second bolt passes through the extension plate and is threaded onto the reinforcing rib at the corresponding position of the clearance groove.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) The inner side of the autoclaved UHPC wall panel of this utility model is provided with a connecting part, and a threaded sleeve is pre-embedded in the connecting part. The pre-embedded threaded sleeve facilitates the fixed connection between the mounting frame and the autoclaved UHPC wall panel. In addition, the reinforcing ribs provided on the connecting frame help to improve the load-bearing capacity of the connecting frame, which helps to achieve convenient, stable and firm fixing of the autoclaved UHPC wall panel in the future.

[0021] (2) In this utility model, the mounting window of the keel frame in the non-steam-cured UHPC exterior wall panel is provided with a first mounting component and a second mounting component, and a distance is left between the right-angle fixing plate of the first mounting component and the mounting window to form a limiting groove. When the non-steam-cured UHPC exterior wall panel is installed, the top corner of the mounting frame is located in the limiting groove, and the two sides of the right-angle fixing plate are respectively fixed to the mounting frame by bolts, which can form a good limiting fixation for the four top corners of the mounting frame. At the same time, the extension plate is stuck on the inner wall of the mounting frame, and the extension plate is fixed to the mounting frame by the second bolt, which can form a good limiting fixation for the side plate of the mounting frame. Through the cooperation of the first mounting component and the second mounting component, the non-steam-cured UHPC exterior wall panel can be stably and reliably fixed to the mounting window of the keel frame. Furthermore, when the autoclaved UHPC wall panel is installed inside the installation window, the right-angle fixing plate, the extension plate, and the crossbeam at the bottom of the installation window jointly bear the weight of the autoclaved UHPC wall panel, which can improve the load-bearing capacity and thus make it suitable for the fixed installation of autoclaved UHPC wall panels with large area and heavy weight. Attached Figure Description

[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0023] Figure 2 for Figure 1 Rear view;

[0024] Figure 3 for Figure 1 Rear side view;

[0025] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0026] Figure 5 This is a structural schematic diagram of the steam-curing-free UHPC external wall panel of this utility model;

[0027] Figure 6 This is a schematic diagram of the mounting frame of this utility model;

[0028] Figure 7 This is a schematic diagram of the keel frame structure of this utility model;

[0029] Figure 8 for Figure 7 A magnified view of a section at point B.

[0030] Explanation of key figure labels:

[0031] 10. No-steam-curing UHPC exterior wall panel; 11. Connecting part; 12. Threaded sleeve;

[0032] 20. Mounting frame; 21. Clearance groove; 22. Mounting bolts; 23. Reinforcing ribs;

[0033] 30. Keel frame; 31. Installation window;

[0034] 40. First mounting component; 41. Sector-shaped limiting plate; 42. Right-angle fixing plate;

[0035] 50. Second mounting component; 51. Auxiliary limiting plate; 52. Extension plate;

[0036] 60. Limiting groove;

[0037] 70. First bolt;

[0038] 80. Second bolt. Detailed Implementation

[0039] The technical solution of this utility model patent will be clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0040] Example

[0041] See attached Figure 1-8 A non-autoclaved limestone manufactured sand UHPC exterior wall panel, comprising:

[0042] The UHPC external wall panel 10 is a non-steam-curing UHPC external wall panel 10. A rectangular connecting part 11 is formed by the outward protrusion of the inner side of the non-steam-curing UHPC external wall panel 10. Multiple threaded sleeves 12 are evenly embedded around the edge of the connecting part 11.

[0043] Mounting frame 20 is rectangular. An allowance groove 21 is recessed on the inner side of the mounting frame 20 at the position corresponding to the threaded sleeve 12. Mounting bolt 22 corresponding to the threaded sleeve 12 is provided in the allowance groove 21. The inner end of the mounting bolt 22 passes through the mounting frame 20 and is threaded to the threaded sleeve 12. In order to improve the load-bearing capacity of the mounting frame 20, multiple reinforcing ribs 23 are provided at intervals in the allowance groove 21.

[0044] The frame 30 is constructed from welded horizontal and vertical beams. The horizontal and vertical beams intersect to form multiple installation windows 31. At the four corners of each installation window 31, a first mounting component 40 is welded to correspond to the four corners of the installation frame 20. Second mounting components 50 are welded to the sides of each installation window 31 to correspond to the sides of the installation frame 20. The first mounting component 40 includes a fan-shaped limiting plate 41 welded to the corner of the installation window 31 and a right-angle fixing plate 42 integrally formed on the side of the fan-shaped limiting plate 41 near the installation frame 20. A limiting groove 60 is formed between the right-angle fixing plate 42 and the installation window 31. When the non-steam-curing UHPC external wall panel 10 is installed, the corner of the installation frame 20 is located within the limiting groove 60, and the right-angle fixing plate 42... The two sides of 2 are respectively fixed to the mounting frame 20 by the first bolt 70; more specifically, the inner end of the first bolt 70 passes through the right-angle fixing plate 42 and is threaded to the reinforcing rib 23 at the corresponding position of the relief groove 21; in addition, the second mounting component 50 includes an auxiliary limiting plate 51 welded to the inner wall of the mounting window 31 and an extension plate 52 vertically fixed to the inner end of the auxiliary limiting plate 51 and facing the steam-free UHPC external wall panel 10. When the steam-free UHPC external wall panel 10 is installed, the extension plate 52 is stuck on the inner wall of the mounting frame 20, and the extension plate 52 is fixed to the mounting frame 20 by the second bolt 80; more specifically, the inner end of the second bolt 80 passes through the extension plate 52 and is threaded to the reinforcing rib 23 at the corresponding position of the relief groove 21.

[0045] In this embodiment, the outer walls of the connecting part 11 and the mounting frame 20 are fitted to the inner wall of the mounting window 31 at the corresponding position; the mounting bolt 22, the first bolt 70 and the second bolt 80 are all countersunk hexagonal socket head cap screws.

[0046] In use, the mounting frame 20 is placed on the inner side of the connecting part 11 of the self-curing UHPC exterior wall panel 10 and fixed to the connecting part 11 with the mounting bolts 22. It should be noted that the position of the mounting bolts 22 corresponds to the threaded sleeve 12 pre-embedded in the connecting part 11. When fixing the mounting frame 20, the mounting bolts 22 are placed in the clearance groove 21. Tightening the mounting bolts 22 causes the inner end of the mounting bolts 22 to pass through the mounting frame 20 and threadedly connect to the threaded sleeve 12, thus fixing the mounting frame 20 to the connecting part 11. The clearance groove 21 on the mounting frame 20 prevents the outer end of the mounting bolts 22 from extending beyond the mounting frame 20 and thus avoiding obstruction of subsequent installation.

[0047] The reinforcing rib 23 has a threaded groove to facilitate threaded connection with the inner ends of the first bolt 70 and the second bolt 80. After the mounting frame 20 is fixed, external lifting lugs are installed using the threaded grooves on the reinforcing rib 23 to hoist the mounting frame 20 together with the autoclaved UHPC exterior wall panel 10. After hoisting into place, the external lifting lugs are removed, and the connecting part 11 and the mounting frame 20 are placed inside the mounting window 31. The connecting part 11 and the mounting frame 20 abut against the crossbeam at the bottom of the mounting window 31, at which point the crossbeam at the bottom of the mounting window 31 bears the weight of the autoclaved UHPC exterior wall panel. During fixing, the inner side of the mounting frame 20 is attached to the fan-shaped limiting plate 41 and the auxiliary limiting plate 51, while the top corner of the mounting frame 20 is located within the limiting groove 60, and the extension plate 52 is secured to the inner wall of the mounting frame 20. Then, using the first bolt 70, the two sides of the right-angle fixing plate 42 are fixed to the mounting frame 20 respectively, and the extension plate 52 is fixed to the mounting frame 20 using the second bolt 80. This completes the installation of one autoclaved UHPC exterior wall panel 10. By repeating this process, multiple autoclaved UHPC exterior wall panels 10 can be installed on the mounting windows 31 of the keel frame 30 using the mounting frame 20. It should be noted that when the autoclaved UHPC exterior wall panel 10 is installed in the mounting window 31, the right-angle fixing plate 42, the extension plate 52, and the crossbeam at the bottom of the mounting window 31 jointly bear the weight of the autoclaved UHPC exterior wall panel 10, which improves the load-bearing capacity and makes it suitable for the installation of large-area and heavy autoclaved UHPC exterior wall panels 10.

[0048] Finally, it should be noted that a gap is left between two adjacent autoclaved UHPC exterior wall panels 10. Sealant will be applied into this gap to achieve a sealing effect and prevent rainwater from seeping into the inside of the autoclaved UHPC exterior wall panel 10. Additionally, in this embodiment, the limestone manufactured sand UHPC exterior wall panel only uses limestone manufactured sand during the manufacturing process of the UHPC exterior wall panel.

[0049] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A non-autoclaved limestone manufactured sand UHPC exterior wall panel, characterized in that, include: The non-steam-curing UHPC exterior wall panel has a rectangular connecting part that protrudes outward from the inner side of the non-steam-curing UHPC exterior wall panel. Multiple threaded sleeves are evenly embedded around the edge of the connecting part. The mounting frame is rectangular, and a relief groove is recessed on the inner side of the mounting frame at a position corresponding to the threaded sleeve. A mounting bolt corresponding to the threaded sleeve is provided in the relief groove. The keel frame is welded from horizontal beams and vertical beams; the horizontal beams and vertical beams are arranged in a cross shape to form multiple installation windows; a first mounting component corresponding to the four corners of the installation window is welded to each of the four corners of the installation frame; a second mounting component corresponding to the side of the installation window is welded to each of the four corners of the installation frame.

2. The autoclaved limestone manufactured sand UHPC exterior wall panel according to claim 1, characterized in that, The outer walls of the connecting part and the mounting frame are fitted to the inner wall at the corresponding position of the mounting window.

3. The autoclaved limestone manufactured sand UHPC exterior wall panel according to claim 1, characterized in that, The clearance groove is provided with multiple reinforcing ribs at intervals; the inner end of the mounting bolt passes through the mounting frame and is threaded to the threaded sleeve.

4. The autoclaved limestone manufactured sand UHPC exterior wall panel according to claim 3, characterized in that, The first mounting component includes a fan-shaped limiting plate welded to the top corner of the mounting window and a right-angle fixing plate integrally formed on the side of the fan-shaped limiting plate near the mounting frame. A limiting groove is formed between the right-angle fixing plate and the mounting window. When the steam-free UHPC external wall panel is installed, the top corner of the mounting frame is located in the limiting groove, and the two sides of the right-angle fixing plate are respectively fixed to the mounting frame by the first bolt.

5. The autoclaved limestone manufactured sand UHPC exterior wall panel according to claim 4, characterized in that, The inner end of the first bolt passes through the right-angle fixing plate and is threaded to the reinforcing rib at the corresponding position of the clearance groove.

6. The autoclaved limestone manufactured sand UHPC exterior wall panel according to claim 3, characterized in that, The second mounting component includes an auxiliary limiting plate welded to the inner wall of the mounting window and an extension plate vertically fixed to the inner end of the auxiliary limiting plate and facing the steam-free UHPC external wall panel; when the steam-free UHPC external wall panel is installed, the extension plate is clipped onto the inner wall of the mounting frame, and the extension plate is fixed to the mounting frame by a second bolt.

7. The autoclaved limestone manufactured sand UHPC exterior wall panel according to claim 6, characterized in that, The inner end of the second bolt passes through the extension plate and is threaded onto the reinforcing rib at the corresponding position of the clearance groove.

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