Curved floor side wall formwork modular support device

Abstract

The application provides a curved bottom plate side wall formwork modular support device, which comprises a basic unit, an expansion unit and a top fixing unit; the basic unit comprises a top frame, a bottom frame and a basic support frame, the bottom frame and the support frame are connected through a profiling frame, the profiling frame is provided with a connecting hole, a vertical inner support is arranged between the bottom frame and the top frame, and a rear support leg is arranged on the side of the bottom frame away from the profiling frame; the expansion unit comprises a triangular support structure and an expansion support frame on one side of the triangular support structure, and a positioning frame is arranged on the front side of the expansion support frame; the triangular support structure comprises an inclined support frame and a horizontal support frame, a horizontal inner support is arranged between the inclined support frame and the expansion support frame, and an inclined inner support is arranged between the inclined support frame and the horizontal support frame. The application is very convenient to install and disassemble, saves time and effort, all parts are modularly designed, can be recycled, is energy-saving and environment-friendly, and has low use cost.

Description

Technical Field

[0001] This invention belongs to the field of municipal rail transit construction technology, and in particular relates to a modular support device for curved bottom plate side wall formwork. Background Technology

[0002] With the increasing demand for underground railway development in major cities, the use of curved base slabs in subway station construction has become a new main structural technology. The curved base slab design better adapts to the internal geometry of the station, ensuring that the internal space meets regulatory requirements and avoiding encroachment on station building clearances due to improper design and construction. While the curved base slab design optimizes the structural stress, after the subway's curved base slab is completed, a large number of support frames are needed when constructing the side walls. In the curved corner structure of the base slab, the side walls use a formwork support system, employing a "steel structure + scaffolding" method. This process is cumbersome, lacks robust reinforcement, and is generally unstable. Furthermore, the numerous scaffolding erection nodes are highly susceptible to human error, increasing workload and making installation and dismantling difficult. Dismantling, in particular, can easily damage the scaffolding. Additionally, the large number of stainless steel formwork panels for the side walls means that production cannot guarantee perfect joints between each panel. The use of the support frames can also cause varying stress deformations at the edges of the formwork, affecting joint quality and causing misalignments. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a modular support device for curved bottom plate side wall template.

[0004] To achieve the above objectives, the technical solution created by this invention is implemented as follows:

[0005] A modular support device for curved base plate sidewall formwork includes a base unit, an extension unit detachably installed on the base unit, and a top fixing unit detachably installed on the extension unit. The base unit includes a top frame, a bottom frame, and a base support frame. The bottom frame and the support frame are connected by a contour frame with connecting holes. A vertical inner support is provided between the bottom frame and the top frame. A rear support leg is provided on the side of the bottom frame opposite to the contour frame. The ends of the top frame and the bottom frame opposite to the base support frame are simultaneously fixed to a lower inclined support. The extension unit includes a triangular support structure and an extension support frame on one side of the triangular support structure. A positioning frame is installed on the front side of the extension support frame. The outer end face of the base support frame is flush with the outer end face of the extension support frame. The triangular support structure includes an inclined support frame and a horizontal support frame. A horizontal inner support is provided between the inclined support frame and the extension support frame, and an inclined inner support is provided between the inclined support frame and the horizontal support frame. Several outer supports are provided on the inclined support frame and the lower inclined support.

[0006] Further, lower connecting flanges are provided at the top ends of the base support frame and the lower inclined support, and upper connecting flanges are provided at the bottom ends of the extension support frame and the lower inclined support. The base support frame and the extension support frame, as well as the inclined support frame and the lower inclined support, are fixed through connecting members.

[0007] Further, the connecting member is a stepped positioning pin.

[0008] Further, the profiling frame adopts an arc-shaped structure.

[0009] Further, the outer support is made of steel pipes.

[0010] Further, the inclined support frame and the horizontal support frame are both welded by double-channel steels, and their cross-sections are in the shape of a "mouth".

[0011] Further, the top frame, the bottom frame and the support frame are all welded by double-channel steels, and their cross-sections are in the shape of a "mouth".

[0012] Further, the outer end faces of the base support frame and the extension support frame are flush.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The present invention has a reasonable structural design. The extension unit can be detachably installed on the base unit, and the top fixing unit can be detachably installed on the extension unit. The installation and removal are very convenient, saving time and effort. Each part of the structure adopts a modular design, which can be recycled, energy-saving and environment-friendly, with low usage cost. Moreover, during the removal process, stress deformation will not be caused to the support device itself and the edge of the template, effectively ensuring the joint quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0016] Figure 1 is a structural schematic diagram of the present invention;

[0017] Figure 2 is a schematic diagram of the top fixing unit part of the present invention;

[0018] Figure 3 is a schematic diagram of the extension unit part of the present invention;

[0019] Figure 4 is a schematic diagram of the base unit part of the present invention;

[0020] Figure 5 is a schematic diagram when the present invention is applied. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0024] The invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] A modular support device for curved bottom plate side wall formwork, such as Figures 1 to 5As shown, the device includes a base unit 1, an extension unit 2 detachably mounted on the base unit, and a top fixing unit 18 detachably mounted on the extension unit. The base unit includes a top frame 3, a base frame 4, and a base support frame 5. The base frame and the support frame are connected by a contour frame 6. The contour frame has connection holes for pre-embedded tie rods 23. A vertical inner support 7 and an inclined lateral support 26 are provided between the base frame and the top frame. A rear support leg 8 is provided on the side of the base frame opposite to the contour frame. The ends of the top frame and the base frame opposite to the base support frame are simultaneously fixed to the lower inclined support 25. The rear support leg can form an effective support, improving the stability of the device. Furthermore, the rear support leg adopts a height-adjustable structure, allowing the height of the rear support leg to be adjusted as needed, thereby ensuring that the positioning plate on the extension unit fits snugly with the side wall template. Typically, to improve the matching degree between the contour frame and the arc-shaped armpit structure of the base plate, the contour frame adopts an arc-shaped structure to ensure the overall stability of the template.

[0026] The expansion unit includes a triangular support structure and an expansion support frame 9 on one side of the triangular support structure. A positioning frame 15 is installed on the front side of the expansion support frame. Typically, the outer end face of the base support frame is flush with the outer end face of the expansion support frame. The triangular support structure includes an inclined support frame 10 and a horizontal support frame 11. A transverse inner support 12 is provided between the inclined support frame and the expansion support frame, and an inclined inner support 13 is provided between the inclined support frame and the horizontal support frame. Several outer supports 14 are provided on the inclined support frame and the lower inclined support, respectively. Typically, the outer supports on the inclined support frame are perpendicular to the inclined support frame, and the outer supports on the lower inclined support are perpendicular to the lower inclined support. As an example, the outer supports are made of steel pipes.

[0027] The positioning frame includes a positioning plate 24, which is fixed to the extension support frame via a connecting beam 15. In one optional embodiment, the positioning plate and the extension support frame are detachably connected; specifically, one end of the connecting beam is bolted to the positioning plate, and the other end is bolted to the extension support frame. In another optional embodiment, the positioning plate and the extension support frame are fixedly connected; specifically, one end of the connecting beam is welded to the positioning plate, and the other end is welded to the extension support frame. In one optional embodiment, the positioning plate is made of 5 layers of ordinary steel plates + 1 layer of stainless steel plates, which are hot-melted and roll-formed into steel formwork at a steel mill to ensure the integrity of the 5+1 formwork. The surface stainless steel formwork ensures the aesthetics of the solid concrete and has a long service life.

[0028] The top of the basic support frame and the top of the lower inclined support are each equipped with a lower connecting flange 16, and the bottom of the extension support frame and the bottom of the lower inclined support are each equipped with an upper connecting flange 17. The basic support frame and the extension support frame, as well as the inclined support frame and the lower inclined support, are fixed together by connectors. For example, the connectors use stepped positioning pins. By inserting the stepped positioning pins into the fixing holes of the corresponding upper and lower connecting flanges, the extension unit and the basic unit can be quickly fixed together, and disassembly is very convenient. Of course, those skilled in the art can also use bolts as connectors. The inclined support frame and the horizontal support frame are both made of double-welded channel steel, and their cross-section is U-shaped. The top frame, bottom frame, and support frame are all made of double-welded channel steel, and their cross-section is U-shaped.

[0029] The upper end of the extension support frame is higher than the upper end of the inclined support frame, and two fixing seats 22 are provided on the part of the extension support frame that is higher than the inclined support frame. These two fixing seats are arranged at different heights, and both fixing seats are located on the side of the extension support frame away from the positioning frame. The top fixing unit includes a vertical fixing rod 19, and a horizontal connecting rod 20 and an inclined connecting rod 21 are provided between the vertical fixing rod and the extension support frame. The horizontal connecting rod and the inclined connecting rod are welded and fixed to the vertical fixing rod, and are respectively connected to the fixing seats on the extension support frame. A connecting lug 27 that mates with the fixing seat is provided at the end of the horizontal connecting rod and the inclined connecting rod that is different from the vertical fixing rod. The connecting lug is fixed to the fixing seat by bolts passing through the fixing seat, thereby assembling the top fixing unit and the extension unit into one unit.

[0030] Before construction, positioning plates, foundation units, expansion units, and top fixing units are manufactured according to the design drawings. During construction, if... Figure 5 As shown, rivet bolts are reserved before pouring the arc-shaped haunch, and then the support device is assembled on site. By adjusting the height of the rear support leg, the positioning plate is made to fit the side wall formwork. After pouring the side wall concrete, the formwork is removed after it reaches the final strength.

[0031] This invention features a rational structural design. The expansion unit can be detachably installed on the base unit, and the top fixing unit can be detachably installed on the expansion unit. It has good overall integrity, high safety, and is very convenient to install and dismantle, saving time and effort. All parts of the structure adopt a modular design, which can be recycled, is energy-saving and environmentally friendly, and has low operating costs. Moreover, the dismantling process will not cause stress deformation to the support device itself and the edge of the template, ensuring the construction quality of the side wall bottom plate corner and the pouring quality of the side wall, while reducing the risk of formwork bulging.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A modular support device for curved bottom plate side wall formwork, characterized in that: It includes a base unit, an expansion unit detachably installed on the base unit, and a top fixing unit detachably installed on the top of the expansion unit; the base unit includes a top frame, a bottom frame and a base support frame, which are connected by a profiling frame between the bottom frame and the support frame. The profiling frame is provided with connecting holes, and there is a vertical inner support between the bottom frame and the top frame. There is a rear support leg on one side of the bottom frame different from the profiling frame, and one ends of the top frame and the bottom frame different from the base support frame are fixed to the lower inclined support at the same time; the expansion unit includes a triangular support structure and an expansion support frame on one side of the triangular support structure, and a positioning frame is installed on the front side of the expansion support frame; the triangular support structure includes an inclined support frame and a horizontal support frame, and there is a horizontal inner support between the inclined support frame and the expansion support frame, and there is an inclined inner support between the inclined support frame and the horizontal support frame; several outer supports are respectively arranged on the inclined support frame and the lower inclined support.

2. The modular support device for curved bottom plate side wall formwork according to claim 1, characterized in that: Lower connecting flanges are provided at the top ends of the base support frame and the lower inclined support, and upper connecting flanges are provided at the bottom ends of the expansion support frame and the lower inclined support. The base support frame and the expansion support frame, as well as the inclined support frame and the lower inclined support, are fixed by connecting members.

3. The modular support device for curved bottom plate side wall formwork according to claim 2, characterized in that: The connecting member adopts a stepped positioning pin.

4. The modular support device for curved bottom plate side wall formwork according to claim 1, characterized in that: The profiling frame adopts an arc structure.

5. A modular support device for curved bottom plate sidewall formwork according to claim 1, characterized in that: The outer support is made of steel pipe.

6. The modular support device for curved bottom plate side wall formwork according to claim 1, characterized in that: Both the inclined support frame and the horizontal support frame are welded by double-channel steels, and their cross-sections are in the shape of a "mouth".

7. A modular support device for curved bottom plate side wall formwork according to claim 1, characterized in that: Both the top frame, the bottom frame and the support frame are welded by double-channel steels, and their cross-sections are in the shape of a "mouth".

8. A modular support device for curved bottom plate side wall formwork according to claim 1, characterized in that: The outer end faces of the base support frame and the expansion support frame are flush.

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