Annular concave spherical supporting bracket

Abstract

The utility model belongs to the technical field of building construction, and particularly discloses an annular concave spherical surface supporting bracket which comprises a plurality of groups of bracket units, the plurality of groups of bracket units are assembled and combined in an annular shape to form a supporting bracket main body, and each group of bracket unit comprises a first bracket sheet body and a second bracket sheet body, the first support sheet body and the second support sheet body are connected with each other. The stability and the non-deformability of the supporting bracket can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to an annular concave spherical support bracket. Background Art

[0002] As a world-leading third-generation non-active large-scale pressurized water reactor nuclear power plant with independent intellectual property rights in my country, the third-generation pressurized water reactor nuclear power plant has inherited the world's advanced nuclear power plant design concept and has advanced modular construction technology. The bottom head of the steel containment vessel of the nuclear power plant reactor and the corresponding steel bars at the bottom are supported by a steel structure bracket, which is an annular concave spherical support bracket, serving as a temporary support system for the bottom head of the steel containment vessel. Finally, after the concrete of the lower part of the steel containment vessel is poured, it forms the foundation of the entire reactor building and shielding building.

[0003] During the construction of this part, the traditional method is to directly manufacture and install it on site. At present, combined with the concept of modular construction, the assembly is completed at the prefabrication site, and then the module is hoisted into place in the nuclear power plant reactor by overall hoisting. This puts higher requirements on the stability, deformation resistance and lifting ear design of the support bracket. Utility Model Content

[0004] The utility model provides an annular concave spherical support bracket, which aims to improve the stability and anti-deformation ability of the support bracket.

[0005] The utility model is realized through the following technical scheme: an annular concave spherical support bracket, including multiple groups of bracket units, the multiple groups of bracket units are assembled and combined in a ring shape to form a support bracket body, each group of the bracket units includes a first bracket sheet body and a second bracket sheet body, and the first bracket sheet body and the second bracket sheet body are connected to each other.

[0006] Compared with the prior art, the utility model has the following advantages and beneficial effects: in this solution, the first bracket sheet and the second bracket sheet are connected to each other to form a group of bracket units, and multiple groups of bracket units are assembled in a ring manner to form a ring-shaped basic support bracket. Through the basic support bracket structure of the utility model, a stable support structure can be formed between each group of bracket units, and because each group of bracket units is formed by connecting the first bracket sheet and the second bracket sheet, the stability and deformation resistance of the entire support bracket can be enhanced.

[0007] Furthermore, the first support sheet and the second support sheet each include an inclined steel beam and a horizontal steel beam, the horizontal steel beam is horizontally arranged, one end of the inclined steel beam is connected to one end of the horizontal steel beam, and the other end of the inclined steel beam is inclined downward; the bottoms of the inclined steel beam and the horizontal steel beam are both connected to columns, and the bottoms of the columns of the inclined steel beam and the horizontal steel beam are both flush.

[0008] Beneficial effect: The structure of the oblique steel beams and the horizontal steel beams in the first bracket sheet and the second bracket sheet in this solution makes the annular support bracket after later assembly present as a whole annular concave spherical shape, and the columns arranged at the bottom of the oblique steel beams and the horizontal steel beams can play a supporting role, so that a bracket structure is formed between the first bracket sheet and the second bracket sheet, which is convenient for forming a stable support.

[0009] Furthermore, diagonal braces are connected between two adjacent columns.

[0010] Beneficial effect: The provision of the diagonal brace in this solution can further improve the firmness of the first bracket sheet and the second bracket sheet, thereby enhancing the deformation resistance and stability of the supporting bracket body formed after the later assembly.

[0011] Furthermore, a column at the bottom of the horizontal steel beam of the second support sheet is a round steel column. The horizontal steel beam of the second support sheet is cut to form a horizontal short steel beam and a horizontal long steel beam. The round steel column is located between the horizontal short steel beam and the horizontal long steel beam, and the top end of the round steel column is located above the horizontal steel beam of the second support sheet. The round steel column is connected to the horizontal short steel beam and the horizontal long steel beam.

[0012] Beneficial effect: In this solution, a column at the bottom of the horizontal steel beam of the second bracket piece is adjusted to a round steel column structure, which is convenient for later connecting steel bars to reinforce the strength of the entire supporting bracket structure. The horizontal steel beam on the second bracket piece is cut off to form a horizontal short steel beam and a horizontal long steel beam to avoid interference with the installation of the round steel column.

[0013] Furthermore, an outer side of the round steel column is connected to an outer steel frame, and the outer steel frame is rectangular.

[0014] Beneficial effect: In this solution, the outer steel frame is connected to the outside of the round steel column, so that the steel bars can be criss-crossed and tied on the supporting bracket body to form a steel mesh. Due to the position of the round steel column, the cut steel bars conflict with the outer steel frame and cannot be closed. This solution connects the outer steel frame with the steel bars, which can meet the requirement of indirectly connecting the steel bars with the round steel column to form a force closed loop of the steel bars, while improving the overall stiffness of the entire module.

[0015] Furthermore, rib plates are connected between the round steel column and the four side walls of the outer steel frame.

[0016] Beneficial effect: The provision of the stiffener in this solution can enhance the connection strength between the outer steel frame and the round steel column, while facilitating the smooth connection between the outer steel frame and the round steel column.

[0017] Furthermore, the horizontal steel beam and the oblique steel beam of the first bracket sheet or the second bracket sheet are respectively connected with horizontal lifting ears and oblique lifting ears, the horizontal lifting ear on the horizontal steel beam is located at an end away from the oblique steel beam, and the oblique lifting ear is located at the upper part of the oblique steel beam.

[0018] Beneficial effects: In this solution, horizontal lifting ears and oblique lifting ears are arranged on the first bracket sheet or the second bracket sheet, so that it is convenient to lift by sling tools during the later assembly, which facilitates the lifting operation and saves manpower.

[0019] Furthermore, a steel bar hole is provided on the oblique lifting ear.

[0020] Beneficial effect: Such a setting makes it easy for the steel bars to pass through the steel bar holes, and the steel bars can be formed into a closed loop without cutting when the lifting lugs conflict with the steel bars, thereby improving the bearing capacity of the entire support bracket.

[0021] Furthermore, the oblique steel beams, the horizontal steel beams and the columns are all steel sections, and the round steel columns are steel pipes.

[0022] Beneficial effects: In this solution, the use of steel pipes for the round steel columns can improve the stability and strength of the second bracket sheet, while the use of steel sections for the oblique steel beams, horizontal steel beams and columns facilitates connection and assembly.

[0023] Furthermore, a plurality of connecting steel beams are sequentially connected between the oblique steel beams and horizontal steel beams of the first support sheet and the oblique steel beams and horizontal steel beams of the second support sheet, and cross-arranged connecting oblique rods are connected between the columns of the first support sheet and the columns of the second support sheet.

[0024] Beneficial effect: In this solution, the connecting steel beam serves to connect the first bracket sheet and the second bracket sheet into one body to form a group of bracket units, and the setting of the connecting diagonal rod can improve the firmness and strength of the connection between the first bracket sheet and the second bracket sheet, thereby facilitating the improvement of the strength and deformation resistance of the supporting bracket body after later assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0026] Figure 1 This is an overall schematic diagram of an annular concave spherical support bracket of the utility model;

[0027] Figure 2 It is a vertical view of the first bracket sheet in an annular concave spherical support bracket of the utility model;

[0028] Figure 3 It is a vertical view of the second bracket sheet in an annular concave spherical support bracket of the utility model;

[0029] Figure 4 It is a top view of a first bracket sheet and a second bracket sheet in an annular concave spherical support bracket of the utility model;

[0030] Figure 5 It is a top view of a first bracket sheet and a second bracket sheet in an annular concave spherical support bracket of the utility model after being connected into a frame;

[0031] Figure 6 It is a schematic diagram of the arrangement positions of the horizontal lifting ears and the oblique lifting ears in a ring-shaped concave spherical support bracket of the utility model;

[0032] Figure 7 It is a vertical view of a horizontal lifting ear in an annular concave spherical support bracket of the utility model;

[0033] Figure 8 It is a vertical view of an oblique lifting ear in an annular concave spherical support bracket of the utility model;

[0034] Fig. 9 It is a top view of the outer steel frame;

[0035] Fig.10 This is a top view of the layout of the counterweight and construction operation platform.

[0036] Marks and corresponding parts names in the attached drawings:

[0037] 1-the first bracket sheet, 2-the second bracket sheet, 3-connecting diagonal rod, 4-the position of the lifting ear, V1-diagonal brace, C1-long column A, C2-round steel column, C2A-long column B, C3-short column A, C4-short column B, G11-horizontal steel beam, G12-diagonal steel beam, G11A-horizontal long steel beam, G11B-horizontal short steel beam, G21-connecting steel beam A, G22B-connecting steel beam B, G23-connecting steel beam C, G24-connecting steel beam D, B11-connecting steel beam E, B21-connecting steel beam F, 5-horizontal lifting ear, 6-diagonal lifting ear, 7-rebar hole, 8-outer steel frame, 9-rebar mesh, 10-counterweight, 11-construction operation platform, 12-rib plate. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0039] like Figure 1-Figure 10 As shown, this embodiment provides an annular concave spherical support bracket, including multiple groups of bracket units, which are assembled and combined in a ring shape to form a support bracket body, each group of bracket units includes a first bracket sheet 1 and a second bracket sheet 2, the first bracket sheet 1 and the second bracket sheet 2 are connected to each other, in this embodiment, the first bracket sheet 1 and the second bracket sheet 2 are a total of 32 pieces, forming 16 bracket units, and the 16 bracket units are assembled into an annular concave spherical basic support bracket. The steel structure bracket is an annular concave spherical support bracket, with a height of 5.486m, an inner diameter of 21.336m, and an outer diameter of 42.212m.

[0040] Specific: Combined Figure 2 and Figure 3 As shown, in this embodiment, the first bracket sheet 1 and the second bracket sheet 2 both include an oblique steel beam G12 and a horizontal steel beam G11. The horizontal steel beam G11 is horizontally arranged, one end of the oblique steel beam G12 is welded to one end of the horizontal steel beam G11, and the other end of the oblique steel beam G12 is inclined downward; the bottoms of the oblique steel beam G12 and the horizontal steel beam G11 are connected to columns, the bottoms of the columns of the oblique steel beam G12 and the horizontal steel beam G11 are flush, and an oblique brace V1 is connected between two adjacent columns. There are two oblique braces V1 between two adjacent columns, and the two oblique braces V1 are cross-arranged. In this embodiment, the oblique brace V1 and the column are connected by a connecting plate and high-strength bolts.

[0041] In this embodiment, there are two columns at the bottom of the horizontal steel beam G11, namely C1 long column A and C2A long column B, and the columns at the bottom of the inclined steel beam G12 are two columns of different lengths, namely C3 short column A and C4 short column B.

[0042] like Figure 3As shown, in this embodiment, a column at the bottom of the horizontal steel beam G11 of the second bracket sheet 2 is a round steel column C2, that is, the second bracket sheet 2 in this embodiment is modified on the structure of the first bracket sheet 1, and the C2A long column B is adjusted to the round steel column C2 according to the docking position and stress condition of the bottom head of the reactor steel containment. At the same time, the horizontal steel beam G11 of the second bracket sheet 2 is cut off to form a horizontal short steel beam G11B and a horizontal long steel beam G11A. In this embodiment, the left part of the horizontal steel beam G11 of the second bracket sheet 2 is cut off so that the length of the horizontal short steel beam G11B is longer than the horizontal short steel beam G11A. The flat long steel beam G11A is short, and the round steel column C2 is located between the horizontal short steel beam G11B and the horizontal long steel beam G11A, and the top of the round steel column C2 is located above the horizontal steel beam G11 of the second bracket sheet 2. The round steel column C2 is connected to the horizontal short steel beam G11B and the horizontal long steel beam G11A. In this embodiment, connecting plates are welded on both sides of the round steel column C2 and the ends of the horizontal short steel beam G11B and the horizontal long steel beam G11A facing the round steel column C2. The round steel column C2 is connected and fixed to the horizontal short steel beam G11B and the horizontal long steel beam G11A through connecting plates and high-strength bolts.

[0043] Combination Figure 4 and Figure 5 As shown, in this embodiment, a plurality of connecting steel beams are sequentially connected between the oblique steel beam G12 and the horizontal steel beam G11 of the first bracket sheet 1 and the oblique steel beam G12 and the horizontal steel beam G11 of the second bracket sheet 2. In this embodiment, G21 connecting steel beam A, G22B connecting steel beam B, G23 connecting steel beam C, G24 connecting steel beam D and B11 connecting steel beam F are sequentially welded between the first bracket sheet 1 and the second bracket sheet 2, wherein B11 connecting steel beam E is vertically connected between G22B connecting steel beam B and G21 connecting steel beam A. In this embodiment, the first bracket sheet 1 and the second bracket sheet 2 are distributed in an eight-shaped shape, that is, the first bracket sheet 1 and the second bracket sheet 2 are arranged obliquely to each other, and one end of the first bracket sheet 1 and the second bracket sheet 2 are close to each other.

[0044] Combination Figure 1 As shown, cross-arranged connecting diagonal rods 3 are connected between the columns of the first bracket sheet 1 and the columns of the second bracket sheet 2. The arrangement of the connecting diagonal rods 3 can further enhance the strength and stability of the connection between the first bracket sheet 1 and the second bracket sheet 2. The first bracket sheet 1 and the second bracket sheet 2 are connected to form a frame, so as to facilitate the later combination into a whole annular supporting bracket.

[0045] like Figure 6As shown, the ear arrangement position 4 on the first bracket sheet 1 or the second bracket sheet 2 is shown in the figure. In this embodiment, the horizontal steel beam G11 and the oblique steel beam G12 of the first bracket sheet 1 or the second bracket sheet 2 are respectively connected with the horizontal ear 5 and the oblique ear 6. In this embodiment, the water ear and the oblique ear 6 connected to the horizontal steel beam G11 and the oblique steel beam G12 of the second bracket sheet 2 are taken as an example to illustrate that the horizontal ear 5 on the horizontal steel beam G11 is located at the end away from the oblique steel beam G12 (that is, the horizontal ear 5 is located at the right part of the horizontal steel beam G11), and the oblique ear 6 is located at the upper part of the oblique steel beam G12.

[0046] like Figure 7 and Figure 8 As shown, the horizontal long steel beam G11A passes through the lower part of the horizontal lifting lug 5 and is welded or bolted to the horizontal lifting lug 5, and the oblique steel beam G12 passes through the lower part of the oblique lifting lug 6 and is welded or bolted to the oblique lifting lug 6, as shown in FIG. Figure 8 As shown, a steel bar hole 7 is opened on the inclined lifting ear 6. Since it is necessary to tie annular steel bars to reinforce the supporting bracket body formed by assembling the first bracket sheet 1 and the second bracket sheet 2 in the later stage, the steel bar holes 7 opened on the inclined lifting ear 6 in this embodiment can meet the steel bar penetration requirements. The function of the inclined lifting ear 6 in this embodiment is to meet the lifting of the assembled bracket unit while not cutting the steel bar when the inclined lifting ear 6 conflicts with the passed steel bar, so that the steel bar can form a closed loop, and the overall force-bearing capacity of the assembled supporting bracket body is not weakened. In this embodiment, the position of the steel bar hole 7 on the inclined lifting ear 6 is determined according to the spacing of the steel bars to be tied, and the number of the steel bar holes 7 is designed accordingly according to the actual number of steel bars passed through.

[0047] like Fig. 9 As shown, the outer side of the round steel column C2 is connected with an outer steel frame 8. In this embodiment, the outer steel frame 8 is located at the portion of the upper part of the round steel column C2 extending out of the horizontal steel beam G11. The outer steel frame 8 is rectangular. Two ribs 12 are welded between the four side walls of the round steel column C2 and the outer steel frame 8. The setting of the ribs 12 can connect the outer steel frame 8 and the round steel column C2, and at the same time can enhance the strength of the connection between the round steel column C2 and the outer steel frame 8, thereby improving the service life.

[0048] In actual operation, it is necessary to cross-bind steel bars in the circumferential and longitudinal directions on the assembled support bracket body to form a steel mesh 9. In this embodiment, an outer steel frame 8 is connected to the outside of the round steel column C2. Due to the position of the round steel column C2, it is necessary to cut the steel bars at the position where the steel mesh 9 conflicts with the round steel column C2. This will cause the cut steel mesh 9 to be unable to close the loop. The setting of the outer steel frame 8 can weld the ends of the steel bars on the cut steel mesh 9 to the outer steel frame 8, thereby satisfying the force closed loop of the steel mesh 9 formed by connecting the steel bars to the round steel column C2 while improving the overall stiffness of the entire support bracket body.

[0049] like Fig.10 As shown, a counterweight block 10 used in conjunction with hoisting is arranged on the top of the supporting bracket body in this embodiment, and a construction operation platform 11 is installed on the outside of the supporting bracket body as a whole.

[0050] In this embodiment, the oblique steel beam G12, the horizontal steel beam G11, the diagonal brace V1, and the columns are all made of H-shaped steel, the connecting plate is made of 10 mm thick steel plate, the round steel column C2 is a steel pipe, the outer frame is made of steel plate, and the counterweight block 10 is mainly made of 20 mm thick steel plate. Multiple steel plates can be stacked, and reinforcement work needs to be done. The overall material of the supporting bracket is Q355B, and the construction operation platform 11 is composed of steel springboards and railings.

[0051] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An annular concave spherical support bracket, characterized in that: The support frame comprises a plurality of bracket units, which are assembled and combined in a ring shape to form a supporting bracket body, each group of the bracket units comprises a first bracket sheet and a second bracket sheet, the first bracket sheet and the second bracket sheet are connected to each other; the first bracket sheet and the second bracket sheet each comprise an oblique steel beam and a horizontal steel beam, the horizontal steel beam is horizontally arranged, one end of the oblique steel beam is connected to one end of the horizontal steel beam, and the other end of the oblique steel beam is inclined downward; columns are connected to the bottoms of the oblique steel beam and the horizontal steel beam, and the bottoms of the columns of the oblique steel beam and the horizontal steel beam are flush; a plurality of connecting steel beams are connected in sequence between the oblique steel beam and the horizontal steel beam of the first bracket sheet and the oblique steel beam and the horizontal steel beam of the second bracket sheet, and cross-arranged connecting oblique rods are connected between the columns of the first bracket sheet and the columns of the second bracket sheet.

2. The annular concave spherical support bracket according to claim 1, characterized in that: Diagonal braces are connected between two adjacent columns.

3. The annular concave spherical support bracket according to claim 1 or 2, characterized in that: A column at the bottom of the horizontal steel beam of the second support sheet is a round steel column. The horizontal steel beam of the second support sheet is cut to form a horizontal short steel beam and a horizontal long steel beam. The round steel column is located between the horizontal short steel beam and the horizontal long steel beam, and the top end of the round steel column is located above the horizontal steel beam of the second support sheet. The round steel column is connected to the horizontal short steel beam and the horizontal long steel beam.

4. The annular concave spherical support bracket according to claim 3, characterized in that: The outer side of the round steel column is connected with an outer steel frame, and the outer steel frame is rectangular.

5. The annular concave spherical support bracket according to claim 4, characterized in that: Rib plates are connected between the round steel column and the four side walls of the outer steel frame.

6. The annular concave spherical support bracket according to claim 1, characterized in that: The horizontal steel beam and the oblique steel beam of the first bracket sheet or the second bracket sheet are respectively connected with a horizontal lifting lug and an oblique lifting lug. The horizontal lifting lug on the horizontal steel beam is located at an end away from the oblique steel beam, and the oblique lifting lug is located at the upper part of the oblique steel beam.

7. The annular concave spherical support bracket according to claim 6, characterized in that: The oblique lifting lug is provided with a steel bar hole.

8. The annular concave spherical support bracket according to claim 3, characterized in that: The oblique steel beams, the horizontal steel beams and the columns are all steel sections, and the round steel columns are steel pipes.

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