Construction method and supporting structure of special-shaped building decoration steel net rack

Abstract

The application discloses a special-shaped building decoration steel net rack construction method and a supporting structure, relates to the technical field of steel structure building construction, and comprises the following steps: S1, performing three-dimensional laser scanning on a building to be externally erected with a steel net rack, and generating a cloud model of the building; S2, on the basis of the cloud model of the building, combining design drawings, inputting design parameters of each steel material in the drawings into the cloud model of the building, and establishing a structure model of the three-dimensional steel net rack; S3, on the basis of the structure model of the steel net rack, numbering each steel material, and exporting specific three-dimensional coordinates of two ends of each steel material, so as to provide position information for installation of each steel material; and S4, erecting the steel net rack according to the three-dimensional coordinates of each steel material, checking actual installation positions of each steel material, and timely making correction treatment. The application has the effect of improving the precision of installation of two ends of each steel material.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of steel structure building construction, in particular to a special-shaped building decoration steel net rack construction method and a supporting structure. BACKGROUND

[0002] With the continuous development of modern building technology, people's aesthetic requirements for buildings are gradually increasing, and many special-shaped buildings are constantly designed and built, such as the Bird's Nest built entirely of steel structures, special-shaped office buildings built by combining steel structures and glass curtain walls, and the like. Although such special-shaped buildings have different shapes and unique structures, the special-shaped buildings are subjected to strict stress analysis and feasibility demonstration during the design stage, so as to ensure the structural strength and stability of the buildings.

[0003] The top of a waste incineration plant is usually provided with a chimney that rises into the clouds. Such a chimney is usually connected to the flue gas purification system of the incineration plant and is used to discharge the incinerated and purified gas into the high sky, thereby reducing the impact of such flue gas on the surrounding residents. In order to improve the integrity and aesthetics of the plant and the chimney, a special-shaped decoration steel net rack is built outside the chimney by using steel structures and decorative plates to connect the main body of the plant and the chimney and improve the aesthetics of the building.

[0004] The framework of the decoration steel net rack is connected by multiple steel materials. During the actual installation of the steel net rack, if there is a deviation between the actual installation position of the two ends of the steel material and the position of the steel material specified in the design drawing, the installation accuracy of the adjacent steel materials will be directly affected, which indirectly affects the overall stress condition of the steel net rack, thereby reducing the stability and safety of the steel net rack. SUMMARY

[0005] In order to improve the installation accuracy of each section of steel material, on the one hand, the application provides a special-shaped building decoration steel net rack construction method.

[0006] The special-shaped building decoration steel net rack construction method provided by the application adopts the following technical scheme:

[0007] A special-shaped building decoration steel net rack construction method comprises the following steps:

[0008] S1, performing three-dimensional laser scanning on a building to be externally erected with a steel net rack to generate a cloud model of the building;

[0009] S2, based on the cloud model of the building, combining a design drawing, inputting the design parameters of each section of steel material in the drawing into the cloud model of the building, and establishing a structure model of the three-dimensional steel net rack;

[0010] S3, based on the structure model of the steel net rack, numbering each section of steel material, and exporting the specific three-dimensional coordinates of the two ends of each section of steel material to provide position information for the installation of each section of steel material.

[0011] S4, according to the three-dimensional coordinates of each section of steel, the steel net rack is erected, and the actual installation position of each section of steel is checked, and timely correction is made.

[0012] Through the above technical scheme, the operator combines the scanned building cloud model and the design drawing to generate a structural model of the steel net rack, and derives specific three-dimensional coordinates of both ends of each section of steel from the structural model of the steel net rack. The coordinates provide position information and direction guidance for steel installation, which can effectively improve the accuracy of the installation of both ends of each section of steel, thereby effectively reducing the installation deviation of each section of steel, ensuring the consistency of the actual steel net rack and the design drawing, thereby fully utilizing the load-bearing capacity of each section of steel to improve the stability and safety of the steel net rack building.

[0013] On the other hand, the application also provides a special-shaped building decoration steel net rack support structure.

[0014] A special-shaped building decoration steel net rack support structure adopts the following technical scheme:

[0015] A special-shaped building decoration steel net rack support structure includes a support plate and a connecting ball. The support plate is installed on the outer wall of the building. The connecting ball is installed on the support plate. A plurality of connecting holes for inserting steel are formed in the connecting ball.

[0016] Through the above technical scheme, the operator installs the support plate on the outer wall of the building, installs the connecting ball on the mounting plate, and inserts a plurality of steels in the connecting ball, which reduces the connection points of the steels and the outer wall of the building, not only reducing the workload of the operator, but also reducing the damage of the steel installation to the outer wall of the building.

[0017] In a preferred example, the application can be further configured as: the support plate is provided with a support member, the support member includes two mutually intersecting receiving plates, an installation slot is formed at the intersection of the two receiving plates, and the connecting ball is installed in the installation slot.

[0018] Through the above technical scheme, since the connecting ball is installed in the installation slot, the support area received by the connecting ball is increased, and the stability of the connecting ball and the steel on the connecting ball is also increased. The connecting ball is also fixedly connected to the inner wall of the installation slot by welding.

[0019] The application can be further configured in a preferred example that the bottom of the support plate is provided with a pre-embedded plate, the support plate is provided with a pressing part for pressing the support plate on the pre-embedded plate, the pre-embedded plate is provided with a plurality of reinforcing rods, the reinforcing rod comprises an extension part and an anchoring part, the extension part and the anchoring part form an included angle, the extension part is arranged on the support plate and the pre-embedded plate, and the pre-embedded plate, the anchoring part and the extension part below the support plate are embedded in the building.

[0020] Through the above technical solution, before the concrete pouring of the building, the pre-embedded plate and the reinforcing rod are embedded in the area where the building concrete is to be poured by erecting the reinforcing bar, so that the top surface of the pre-embedded plate is flush with the outer wall of the building, and the support plate is prepared for subsequent installation. Under the anchoring effect of the anchoring part, the anchoring effect of the reinforcing rod on the pre-embedded plate is increased. After the building is completed, the operator places the support plate on the pre-embedded plate, so that the extension part of the support rod penetrates the support plate, the support plate is positioned, then the support plate is pressed on the pre-embedded plate by means of the pressing part, finally the connection between the support plate and the pre-embedded plate is welded and anticorrosive paint is applied.

[0021] The pre-embedded plate described above is embedded in the building during the construction of the building, so the pre-embedded plate and the building form a whole. Therefore, when the support plate is installed on the pre-embedded plate, no other holes need to be opened on the outer wall of the building, thereby reducing the damage to the building caused by the installation of the support structure.

[0022] The application can be further configured in a preferred example that the anchoring part and the extension part below the support plate are both provided with reinforcing patterns.

[0023] Through the above technical solution, since the anchoring part and the extension part are both provided with reinforcing patterns, the building concrete can naturally fill the reinforcing patterns. After the concrete solidifies, the concrete and the reinforcing rod are fully engaged, thereby effectively enhancing the firmness of the reinforcing rod and the pre-embedded plate.

[0024] The application can be further configured in a preferred example that the pressing part comprises a plurality of nuts, the plurality of nuts are arranged on the support plate, the plurality of nuts and the plurality of extension parts are arranged one by one, and the nuts are threadedly connected to the corresponding extension parts.

[0025] Through the above technical solution, after the operator places the support plate on the pre-embedded plate, the nuts are installed on the extension parts and tightened, so that the nuts abut against the support plate, and the support plate is pressed on the pre-embedded plate by means of the nuts.

[0026] In a preferred example, the upper cover of the support plate is provided with a protective shell, a special-shaped cavity for accommodating the support member and the connecting ball is formed in the protective shell, a through hole one for passing the steel material is formed in the protective shell, a flange is arranged on the protective shell, a through hole two for passing the extension part is formed in the flange, and the nut one abuts against the flange.

[0027] Through the above technical solution, after the operator completes the installation of the connecting ball, the protective shell is placed on the support plate from top to bottom, so that the connecting ball and the support member are covered in the protective shell, and then the steel material is inserted into the connecting hole on the connecting ball through the through hole one. Under the protection of the protective shell on the connecting ball, the oxidation and rusting speed of the connecting ball is slowed down, thereby prolonging the service life of the steel grid structure.

[0028] In a preferred example, a sealing groove is formed in the inner wall of the special-shaped cavity, the sealing groove is communicated with the corresponding through hole one, and an expansion water stop ring is embedded in the sealing groove, and the steel material is passed through the expansion water stop ring.

[0029] Through the above technical solution, after the rainwater enters the through hole one, the expansion water stop ring can swell by itself due to water, thereby increasing the volume to reduce the gap in the sealing groove, and the rainwater entering the protective shell is reduced, thereby further slowing down the rusting speed of the connecting ball and further prolonging the service life of the steel grid structure.

[0030] In a preferred example, the bottom of the pre-buried plate is provided with an anti-inclination plate, a plurality of extension parts are passed through the anti-inclination plate, a central rod is passed through the anti-inclination plate, the top and bottom of the anti-inclination plate are provided with a nut two, the two nuts two are threadedly connected to the central rod, the central rod is passed through the pre-buried plate and the support plate, the bottom of the connecting ball is provided with a central hole for inserting the central rod, and the central rod is threadedly connected to the inner wall of the central hole.

[0031] Through the above technical solution, in the concrete pouring construction process of the building, the anti-inclination plate reduces the possibility of inclination of the reinforcing rod and the pre-buried plate under the obstruction of the anti-inclination plate, thereby improving the installation accuracy of the pre-buried plate and the support plate.

[0032] In a preferred example, each anchor part is away from one end of the corresponding extension part and faces away from the central rod.

[0033] Through the above technical solution, since the anchor part is away from one end of the corresponding extension part and faces away from the central rod, the effective anchoring range of the anchor part is increased, thereby improving the anchoring effect of the anchor part.

[0034] In summary, the present application includes the following beneficial technical effects:

[0035] 1、The construction method of the steel net rack, through the specific three-dimensional coordinates of the two ends of each section of steel material derived from the structural model of the steel net rack, the coordinates provide position information and direction guidance for the installation of the steel material, which can effectively improve the installation accuracy of the two ends of each section of steel material, thereby effectively reducing the installation deviation of each section of steel material, so as to fully exert the bearing capacity of each section of steel material, thereby improving the stability and safety of the steel net rack building;

[0036] 2、The support structure of the steel net rack reduces the connection points of the steel material and the outer wall of the building through the pre-embedded plate, the support plate, the support piece and the support ball, without the need to open holes on the building wall, which not only reduces the workload of the operators, but also reduces the damage of the steel material installation to the outer wall of the building;

[0037] 3、Under the protection of the protective shell on the support piece and the connecting ball, and under the water stopping effect of the expansion water stopping ring, the oxidation and rusting speed of the connecting ball is effectively slowed down, thereby prolonging the service life of the steel net rack structure. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application, mainly showing the structure of the reinforcing rod, the pre-embedded plate and the support plate.

[0039] Figure 2 is a schematic diagram of the local explosion of the embodiment of the present application, mainly showing the structure of the connecting ball and the support piece.

[0040] Figure 3 is a schematic diagram of the local explosion of the embodiment of the present application, mainly showing the structure of the central rod and the flange.

[0041] Figure 4 is a schematic diagram of the local section of Figure 1 , mainly showing the structure of the sealing groove and the expansion water stopping ring.

[0042] BRIEF DESCRIPTION OF DRAWINGS:

[0043] 1、support plate; 11、connecting ball; 12、central hole; 101、steel material; 102、connecting hole; 2、support piece; 21、receiving plate; 211、mounting groove; 3、pre-embedded plate; 31、compression piece; 311、nut one; 4、reinforcing rod; 41、extension; 411、reinforcing pattern; 42、anchoring part; 5、protective shell; 51、through hole one; 52、through hole two; 501、special-shaped cavity; 502、flange; 503、sealing groove; 504、expansion water stopping ring; 6、anti-inclination plate; 61、nut two; 7、central rod. DETAILED DESCRIPTION

[0044] The following description will be made in conjunction with the accompanying drawings Figure 1 - the accompanying drawings Figure 4 The application is described in further detail below.

[0045] Disclosed in the embodiments of the application is a construction method of a special-shaped building decoration steel net rack.

[0046] The construction method of the special-shaped building decoration steel net rack adopts the following technical scheme:

[0047] The construction method of the special-shaped building decoration steel net rack comprises the following steps:

[0048] S1, performing three-dimensional laser scanning on a building to be externally erected with a steel net rack to generate a cloud model of the building;

[0049] S2, inputting design parameters of each steel 101 in design drawings into the cloud model of the building based on the cloud model of the building and in combination with the design drawings to establish a structural model of the three-dimensional steel net rack;

[0050] S3, numbering each steel 101 based on the structural model of the steel net rack and exporting specific three-dimensional coordinates of two ends of each steel 101 to provide position information for installation of each steel 101;

[0051] S4, erecting the steel net rack according to the three-dimensional coordinates of each steel 101 and checking actual installation positions of each steel 101 to timely make correction.

[0052] The operator provides position information and direction guidance for installation of each steel 101 according to the specific three-dimensional coordinates of two ends of each steel 101 exported by the structural model of the steel net rack, effectively improving the accuracy of installation of two ends of each steel 101, effectively reducing installation deviation of each steel 101, ensuring consistency between the actual steel net rack and the design drawings, and thus fully exerting the bearing capacity of each steel 101 to improve the stability and safety of the steel net rack building.

[0053] Based on the construction method of the special-shaped building decoration steel net rack, the embodiments of the application further provide a support structure of the special-shaped building decoration steel net rack.

[0054] Referring to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 As shown in the accompanying drawings, the support structure of the special-shaped building decoration steel net rack comprises a pre-embedded plate 3 and a support plate 1. The pre-embedded plate 3 is pre-embedded in concrete of a building, and a top surface of the pre-embedded plate 3 is flush with an outer wall of the building. The support plate 1 is located above the pre-embedded plate 3. Both the support plate 1 and the pre-embedded plate 3 are made of steel plates, and the support plate 1 and the pre-embedded plate 3 are welded and fixed.

[0055] Referring to the accompanying drawings Figure 1 and the accompanying drawings Figure 2As shown, the top surface of the support plate 1 is provided with a support 2, the support 2 comprises two vertically arranged receiving plates 21, the two receiving plates 21 are integrally formed and made of steel plate, the two receiving plates 21 are perpendicular to each other, the top surface of the intersection of the two receiving plates 21 is provided with a mounting groove 211 in the vertical direction, the mounting groove 211 is semispherical, a connecting ball 11 is welded and fixed in the mounting groove 211, the lower half of the connecting ball 11 is located in the mounting groove 211, the upper half of the connecting ball 11 is located outside the mounting groove 211, a plurality of connecting holes 102 are formed in the upper half of the connecting ball 11, and each connecting hole 102 is used for inserting a steel material 101 of the steel grid.

[0056] In the concrete construction stage of the building, the embedded plate 3 is embedded in the area to be poured with concrete, and the top surface of the embedded plate 3 is flush with the outer wall of the building. After the concrete construction of the building is completed, the support plate 1 is welded and fixed on the embedded plate 3, the connecting ball 11 is placed in the mounting groove 211, the angle of the connecting ball 11 is adjusted according to the specific coordinates of the steel material 101, and then the connecting ball 11 is welded and fixed in the mounting groove 211. This structure reduces the connection points of the steel material 101 and the outer wall of the building, reduces the workload of the operator, and also reduces the damage of the steel material 101 installation to the outer wall of the building.

[0057] Referring to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 As shown, the embedded plate 3 is provided with a plurality of reinforcing rods 4, only one of which will be described below, and the others will not be described in detail.

[0058] Referring to the accompanying drawings Figure 1 and the accompanying drawings Figure 2 As shown, each reinforcing rod 4 comprises an extension part 41 and an anchoring part 42, the extension part 41 and the anchoring part 42 are integrally formed, that is, the reinforcing rod 4 is processed and bent from a reinforcing bar, the extension part 41 is vertically arranged, the anchoring part 42 is horizontally arranged, the length of the extension part 41 is greater than the length of the anchoring part 42, the extension part 41 is above the anchoring part 42, and the bending part and the extension part 41 form an included angle of 90 degrees. The extension part 41 is arranged through the support plate 1 and the embedded plate 3, and the embedded plate 3, the anchoring part 42 and the extension part 41 below the support plate 1 are embedded in the building. Reinforcing grooves 411 are formed on the anchoring part 42 and the extension part 41 below the support plate 1, which are used to enhance the engagement strength of the concrete and the reinforcing rod 4.

[0059] Referring to the accompanying drawings Figure 1 and the accompanying drawings Figure 3 As shown, the support plate 1 is provided with a pressing part 31 for pressing the support plate 1 on the embedded plate 3, the pressing part 31 comprises a plurality of nuts 311, the plurality of nuts 311 and the plurality of extension parts 41 are arranged one by one, the plurality of nuts 311 are arranged on the top surface of the support plate 1, and the nuts 311 are threadedly connected to the corresponding extension parts 41.

[0060] Before the operator embeds the embedded plate 3, the extension part 41 of the reinforcing rod 4 is inserted into the embedded plate 3, and the reinforcing rod 4 is welded and fixed on the embedded plate 3, then the embedded plate 3 is embedded, and finally the construction concrete is poured and constructed. After the concrete is solidified and shaped, the anchoring effect of the reinforcing rod 4 on the embedded plate 3 is increased under the anchoring effect of the anchoring part 42 and the biting effect of the concrete, so as to enhance the connection strength of the embedded plate 3 and the building.

[0061] Referring to the drawings Figure 1 and the drawings Figure 3 , the bottom of the embedded plate 3 is provided with an anti-inclination plate 6, and the extension part 41 is inserted into the anti-inclination plate 6. The middle part of the anti-inclination plate 6 is provided with a central rod 7, which is inserted into the embedded plate 3 and the support plate 1. The top and bottom of the anti-inclination plate 6 are provided with a nut 61 for clamping the anti-inclination plate 6, and the two nuts 61 are threadedly connected to the central rod 7. Under the obstruction of the anti-inclination plate 6, the anti-inclination plate 6 reduces the possibility of inclination of the reinforcing rod 4 and the embedded plate 3, thereby improving the accuracy of installation of the embedded plate 3 and the support plate 1. The end of each anchoring part 42 away from the corresponding extension part 41 is arranged towards the side away from the central rod 7, so as to expand the effective anchoring range of the anchoring part 42.

[0062] Referring to the drawings Figure 1 , the drawings Figure 2 and the drawings Figure 3 , the bottom of the connecting ball 11 is provided with a central hole 12 for inserting the central rod 7, and the central rod 7 is threadedly connected to the inner wall of the central hole 12. During installation of the connecting ball 11 by the operator, the connecting ball 11 is first placed in the installation groove 211, so that the top of the central rod 7 is aligned with the central hole 12, and the central rod 7 is threadedly connected to the connecting ball 11 by rotating the central rod 7, so as to enhance the connection strength and stability of the connecting ball 11. Finally, the connecting ball 11 is welded and fixed to the inner wall of the installation groove 211 to complete the installation of the connecting ball 11.

[0063] Referring to the drawings Figure 1 , the drawings Figure 2 and the drawings Figure 4 , the top of the support plate 1 is provided with a protective shell 5, and the protective shell 5 is provided with a special-shaped cavity 501. The special-shaped cavity 501 is used for accommodating the support 2 and the connecting ball 11. The top of the protective shell 5 is provided with a through hole 51 for inserting the steel material 101, and the bottom of the protective shell 5 is provided with a flange 502. The flange 502 is provided with a through hole 52 for inserting the extension part 41, and the nut 311 abuts against the top surface of the flange 502.

[0064] After the operator completes the installation of the connecting ball 11, the protective shell 5 is placed on the support plate 1, so that the extension 41 passes through the turned edge 502, and the turned edge 502 is pressed by the nut 311, and finally the steel material 101 is inserted into the connecting hole 102 on the connecting ball 11 through the through hole 51. Under the protection of the protective shell 5, the oxidation and rusting speed of the connecting ball 11 is slowed down, thereby prolonging the service life of the steel grid structure.

[0065] Referring to the drawings Figure 4 As shown, the inner wall of the special-shaped cavity 501 is provided with a sealing groove 503, the sealing groove 503 and the corresponding through hole 51 are in communication with each other, the sealing groove 503 is embedded with an expansion water stop ring 504, and the steel material 101 is inserted into the expansion water stop ring 504. If rainwater flows into the through hole 51, the expansion water stop ring 504 expands in water and increases in volume, fills the gap in the sealing groove 503, reduces the rainwater entering the protective shell 5, and further slows down the rusting speed of the connecting ball 11.

[0066] The implementation principle of the embodiment is that the support structure of the steel grid structure installs the steel material 101 of the bottom layer and the boundary of the steel grid structure through the pre-embedded plate 3, the support plate 1, the support piece 2 and the connecting ball 11, reduces the connecting points of the steel material 101 and the building outer wall, does not need to open holes on the building wall, reduces the workload of the operator, and reduces the damage of the steel material 101 installation to the building outer wall.

[0067] The embodiments of the specific embodiment are the preferred embodiments of the application, and do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A construction method for a decorative steel space frame for irregularly shaped buildings, characterized in that: The method comprises the following steps: S1, three-dimensional laser scanning is performed on a building to be externally erected with a steel grid, and a cloud model of the building is generated; S2, based on the cloud model of the building, design parameters of each steel (101) in design drawings are input into the cloud model of the building in combination with the design drawings, and a structural model of the three-dimensional steel grid is established; S3, based on the structural model of the steel grid, each steel (101) is numbered, and specific three-dimensional coordinates of both ends of each steel (101) are exported, thereby providing position information for installation of each steel (101); S4, according to the three-dimensional coordinates of each steel (101), the erection of the steel grid is performed, and the actual installation position of each steel (101) is checked, and timely correction is performed; The support plate (1) is installed on the outer wall of the building, and the connecting ball (11) is installed on the support plate (1), and a plurality of connecting holes (102) for inserting and connecting the steel (101) are formed in the connecting ball (11); The support plate (1) is provided with a support piece (2), and the support piece (2) comprises two intersecting receiving plates (21), and an installation groove (211) is formed at the intersection of the two receiving plates (21), and the connecting ball (11) is installed in the installation groove (211).

2. The construction method of a special-shaped building decoration steel grid according to claim 1, characterized in that: The bottom of the support plate (1) is provided with a pre-embedded plate (3), the support plate (1) is provided with a pressing piece (31) for pressing the support plate (1) to the pre-embedded plate (3), the pre-embedded plate (3) is provided with a plurality of reinforcing rods (4), the reinforcing rod (4) comprises an extension part (41) and an anchoring part (42), the extension part (41) and the anchoring part (42) form an included angle, the extension part (41) is arranged on the support plate (1) and the pre-embedded plate (3), and the pre-embedded plate (3), the anchoring part (42) and the extension part (41) below the support plate (1) are embedded in the building.

3. The construction method of a special-shaped building decorative steel grid according to claim 2, characterized in that: The anchoring part (42) and the extension part (41) below the support plate (1) are provided with reinforcing patterns (411).

4. The construction method of a special-shaped building decorative steel grid according to claim 2, characterized in that: The pressing piece (31) comprises a plurality of nuts (311), and the plurality of nuts (311) are arranged on the support plate (1), and the plurality of nuts (311) and the plurality of extension parts (41) are arranged one by one, and the nuts (311) are threadedly connected to the corresponding extension parts (41).

5. The construction method of a special-shaped building decorative steel grid according to claim 4, characterized in that: The support plate (1) is covered with a protective shell (5), the protective shell (5) is provided with a special-shaped cavity (501) for accommodating the support piece (2) and the connecting ball (11), the protective shell (5) is provided with a through hole (51) for the steel (101) to pass through, the protective shell (5) is provided with a flange (502), the flange (502) is provided with a through hole (52) for the extension part (41) to pass through, and the nut (311) abuts against the flange (502).

6. The construction method of a special-shaped building decorative steel grid according to claim 5, characterized in that: The inner wall of the special-shaped cavity (501) is provided with a sealing groove (503) communicated with the corresponding through hole (51), and the sealing groove (503) is embedded with an expansion water stop ring (504), and the steel material (101) is arranged in the expansion water stop ring (504).

7. The construction method of a special-shaped building decorative steel grid according to claim 2, characterized in that: The bottom of the pre-buried plate (3) is provided with an anti-inclination plate (6), a plurality of extension parts (41) are arranged on the anti-inclination plate (6), a central rod (7) is arranged on the anti-inclination plate (6), the top and bottom of the anti-inclination plate (6) are provided with nuts (61), the two nuts (61) are threadedly connected with the central rod (7), the central rod (7) is arranged on the pre-buried plate (3) and the support plate (1), the bottom of the connecting ball (11) is provided with a central hole (12) for inserting the central rod (7), and the central rod (7) is threadedly connected with the inner wall of the central hole (12).

8. The construction method of a special-shaped building decorative steel grid according to claim 7, characterized in that: Each of the anchoring parts (42) is away from one end of the corresponding extension part (41) and is arranged towards the side away from the central rod (7).

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