Reinforcement method for curved formwork in large venues

Abstract

The present invention relates to the technical field of large-scale stadium arc-shaped structure construction, and in particular to a reinforcement method suitable for large-scale stadium arc-shaped templates, an arc-shaped template for arc-shaped building structures, an arc-shaped reinforcement device, the arc-shaped reinforcement device is formed by connecting a plurality of main ribs, the main ribs are I-shaped structures, through holes are respectively arranged on the top plate and the bottom plate of the main ribs, adjacent main ribs are arranged in an alternating manner up and down and connected by a through-hole bolt assembly, the template, the secondary ribs are installed, and the tension screws are inserted, and the arc-shaped reinforcement device connected with the main ribs is installed as a whole on the outside of the secondary ribs, the angle between two adjacent main ribs is adjusted to adjust the shape of the arc-shaped reinforcement device, so that the arc-shaped reinforcement device is close to the outside of the secondary ribs, and multiple arc-shaped reinforcement devices are installed from bottom to top on the outside of the arc-shaped template and the secondary ribs. The present invention can better adjust the arc-shaped reinforcement device according to the shape of the building structure, is not limited by the specifications of the components, and improves its scope of application and versatility.

Description

Technical Field

[0001] The invention relates to the technical field of large-scale stadium arc-shaped structure building construction, and in particular to a reinforcement method suitable for large-scale stadium arc-shaped templates. Background Art

[0002] In order to make the building look beautiful, some curved walls or columns are usually designed during architectural design. There are generally two construction methods for such components. The first is to customize the steel formwork and use the rigidity of the steel formwork to resist the lateral pressure of the concrete. This method is widely used in viaduct piers. Such structures are single-body structural columns with many similar curved components. The formwork can be used repeatedly, and the turnover of the formwork can be used to amortize the one-time investment cost. The second method is to reinforce the formwork with thickened steel bars. The lateral pressure of the concrete is transmitted to the formwork, and the formwork is then transmitted to the thick steel bars. The thick steel bars used in this method can only be used for structures with uniform curvature, and are not suitable for situations where there are many curved specifications of components and fewer similar components. In addition, the curvature of the steel bar main ribs is difficult to form a close fit with the formwork, and the product is neither economical nor of guaranteed quality. Summary of the invention

[0003] The embodiment of the present invention provides a reinforcement method for arc formworks of large venues, so as to solve the problem that the arc structures of large venues have many specifications but few structures of the same type, making it difficult to reinforce the formworks.

[0004] In one aspect of the present invention, a reinforcement method for arc-shaped formworks of large venues is provided, which is carried out according to the following steps:

[0005] S1. Make a curved template for the curved building structure according to the design drawings;

[0006] S2. Making an arc-shaped reinforcement device: The arc-shaped reinforcement device is formed by connecting a plurality of main ribs, the main ribs are I-shaped structures, the top plate and the bottom plate of the main ribs are respectively provided with through holes, and the adjacent main ribs are arranged in an alternating manner up and down and connected by through-hole bolt assemblies;

[0007] S3. Install the formwork, secondary ribs, and tie rods according to the conventional construction method and construction drawings;

[0008] S4. Install the arc-shaped reinforcement device connected to the main rib on the outside of the secondary rib as a whole, and place the arc-shaped reinforcement device as a whole on the upper part of the tension bolts;

[0009] S5. Adjust the shape of the arc-shaped reinforcement device: loosen the nut, adjust the angle between two adjacent main ribs to adjust the shape of the arc-shaped reinforcement device, so that the arc-shaped reinforcement device is close to the outer side of the secondary ribs. After the adjustment is completed, tighten the bolts to lock the arc-shaped reinforcement device;

[0010] S6. Repeat steps S4 and S5 to install multiple arc-shaped reinforcement devices from bottom to top on the outer sides of the arc-shaped template and the secondary rib.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The present invention utilizes the characteristic that the more sides a polygon has, the closer its shape is to a circle, and utilizes a plurality of main ribs to produce a polygonal arc reinforcement device that can be adjusted to any shape, so as to reinforce the arc template. The shape of the arc reinforcement device can be better adjusted according to the shape of the building structure, and is not limited by the number of component specifications and types. The application range and versatility of the main ribs are improved, and the construction cost and difficulty are reduced.

[0013] Further, the preferred embodiment adopted by the present invention is:

[0014] When adjacent main ribs are arranged in an alternating manner in step S2, the bottom plate of the middle main rib is placed above the bottom plates of the main ribs on both sides of each adjacent three main ribs, and the bottom plate of the middle main rib is placed above the top plates of the main ribs on both sides. Among each three adjacent main ribs, the middle main rib is used to connect the main ribs on both sides, and the angle between two adjacent main ribs is adjusted to adapt to different curvatures and shapes to be reinforced.

[0015] The inner walls of the through holes on the top and bottom plates of each main rib are circumferentially provided with a plurality of slots, and the upper and lower parts of the screw are respectively provided with limit posts, and the outer surfaces of the limit posts are circumferentially provided with protrusions adapted to the slots. The screw is plugged into the two main ribs from bottom to top through the cooperation of the limit posts and the through holes, and then is locked by a nut above the top plate. Slots are respectively provided on the top and bottom plates of the main ribs, and protrusions plugged into the slots are provided on the screws, so that the connection between adjacent main ribs is more stable, and rotation between two adjacent main ribs is avoided, which affects the reinforcement effect of the template.

[0016] The top and bottom plates of the main ribs are steel sheets with a length of 3 cm, a width of 2.5 cm, and a height of 0.5 cm, respectively, and are connected by a 2 mm web. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present application, and do not constitute a limitation of the present invention. In the drawings:

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the arc reinforcement device;

[0020] Figure 3 A top view of the main beam;

[0021] Figure 4It is a structural schematic diagram of the screw assembly;

[0022] Figure 5 Schematic diagram of the position relationship between the screw assembly and the main rib when adjusting the shape;

[0023] In the figure: arc-shaped template 1; secondary rib 2; arc-shaped reinforcement device 3; tension bolt 4; main rib 5; top plate 51; bottom plate 52; web 53; bolt assembly 6; screw rod 61; nut 62; limit column 63; through hole 7. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0025] The principle used in the present invention is to use the characteristic that the more sides a polygon has, the closer its shape is to a circle to make an arc-shaped fixing device (also called an arc-shaped main rib). Figure 1 As shown, in this embodiment, a cylindrical building is taken as an example, and the specific implementation method is carried out according to the following steps:

[0026] S1, making a curved template 1 of a curved building structure according to a design drawing;

[0027] S2, making arc-shaped reinforcement device 3: Figures 2 to 4 As shown, the arc-shaped reinforcement device 3 is formed by connecting a plurality of main ribs 5, each of which is an I-shaped structure, and the top plate 51 and the bottom plate 52 of the main ribs 5 are steel sheets of 3 cm in length, 2.5 cm in width and 0.5 cm in height, respectively, and the top plate 51 and the bottom plate 52 are connected by a 2 mm thick web 53; through holes 7 are respectively opened symmetrically about the web on the top plate 51 of each main rib 5, and slots are evenly arranged on the inner wall of the through hole 7 in the circumferential direction, and the bottom plate 52 is also provided with through holes 7 with slots of the same structure at the positions of the two through holes 7 with slots on the top plate 51;

[0028] The adjacent main ribs 5 are connected in an up-and-down staggered manner. Specifically, the bottom plate of the middle main rib among every three adjacent main ribs 5 is placed above the bottom plates of the main ribs on both sides, and the top plate of the middle main rib is placed above the top plates of the main ribs on both sides. The through holes on the top and bottom plates of the middle main rib are respectively aligned with the through holes on the top and bottom plates of the main ribs on both sides, and then fastened by the screw assembly 6 placed in the through hole 7.

[0029] The upper and lower parts of the screw 61 in the screw assembly 6 are respectively threadedly connected to the limit column 63, and the outer surface of the limit column 63 is evenly provided with protrusions that are adapted to the slots in the through hole 7. When the screw 61 is installed, the lower limit column 63 is first installed with the screw 61, and then the screw 61 passes through the two bottom plates 52 from bottom to top at one time, and then the upper limit column 63 is continued to be installed on the screw 61, and then the screw 61 as a whole continues to pass through the two top plates 51 from bottom to top, and then the screw 61 is locked by the nut 62 above the upper top plate 51; when the screw 61 is installed, the limit column 63 is plugged into the through hole 7 through the cooperation of the protrusion and the groove.

[0030] S3. According to the conventional construction method, install the arc formwork 1, the secondary rib 2, and the tension screw 4 according to the construction drawings.

[0031] S4, such as Figure 1 As shown, the length of the arc reinforcement device is determined according to the length of the outer ring of the building formwork to determine the number of main rib sections, and then the arc reinforcement device connected to the main rib 5 is installed as a whole on the outside of the secondary rib, and the arc reinforcement device 3 is placed as a whole on the upper part of each layer of tension bolts 4.

[0032] S5. Adjust the shape of the arc-shaped reinforcement device 3: Figure 5 As shown, loosen the nut 62, pull down the screw 61 to disengage the limiting columns 63 thereon from the corresponding through holes 7, and then adjust the angle between two adjacent main ribs 5 so that the main ribs 5 are close to the outer side of the secondary ribs 2; after the angle is adjusted, push up the screw 61 to insert the limiting columns 63 into the corresponding through holes 7, and then tighten the nut 62; adjust the positions with arc changes in sequence to lock and fix the arc-shaped reinforcement device.

[0033] S6. Repeat steps S4 and S5 to install multiple arc-shaped reinforcement devices on the outer sides of the arc-shaped template 1 and the secondary rib 2 from bottom to top.

[0034] The present invention utilizes a plurality of main ribs to make a polygonal reinforcement device that can be adjusted to any shape to reinforce the arc template. The main ribs can be better adjusted according to the shape of the building structure, and are not limited by the number of component specifications and types, thereby improving the scope of application and versatility of the arc reinforcement device.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A reinforcement method for curved formwork in large venues is carried out in the following steps: S1. Make a curved template for the curved building structure according to the design drawings; Features: S2. Making an arc-shaped reinforcement device: The arc-shaped reinforcement device is formed by connecting a plurality of main ribs, the main ribs are I-shaped structures, the top plate and the bottom plate of the main ribs are respectively provided with through holes, and the adjacent main ribs are arranged in an alternating manner up and down and connected by through-hole bolt assemblies; S3. Install the formwork, secondary ribs, and tie rods according to the conventional construction method and construction drawings; S4. Install the arc-shaped reinforcement device connected to the main rib on the outside of the secondary rib as a whole, and place the arc-shaped reinforcement device as a whole on the upper part of the tension bolts; S5. Adjust the shape of the arc-shaped reinforcement device: loosen the nut, adjust the angle between two adjacent main ribs to adjust the shape of the arc-shaped reinforcement device, so that the arc-shaped reinforcement device is close to the outer side of the secondary ribs. After the adjustment is completed, tighten the nut to lock the arc-shaped reinforcement device; S6, repeating steps S4 and S5, installing multiple arc-shaped reinforcement devices from bottom to top on the outer sides of the arc-shaped template and the secondary rib; When adjacent main flutes are arranged in an alternating manner in step S2, the bottom plate of the middle main flute is placed above the bottom plates of the main flutes on both sides thereof, and the bottom plate of the middle main flute is placed above the top plates of the main flutes on both sides thereof; The inner walls of the through holes on the top plate and bottom plate of each main rib are circumferentially provided with a plurality of slots, and the upper and lower parts of the screw are respectively provided with limiting columns, and the outer surfaces of the limiting columns are circumferentially provided with protrusions adapted to the slots. The screw is connected with the two main ribs from bottom to top through the cooperation of the limiting columns and the through holes, and then is locked by a nut above the upper top plate.

2. The reinforcement method for curved formwork in large venues according to claim 1 is characterized in that: The top and bottom plates of the main ribs are steel sheets with a length of 3 cm, a width of 2.5 cm, and a height of 0.5 cm, respectively, and are connected by a 2 mm web.

Images