A support system for the bottom head of the steel containment vessel of a reactor building

Abstract

The present invention belongs to the field of building construction technology, and specifically discloses a support system for the bottom head of a steel containment vessel of a reactor building, including a support support body, multiple layers of steel bars and multiple steel bar brackets, wherein the support support body includes multiple groups of bracket units, and the multiple groups of bracket units are assembled and combined in a ring shape to form the support support body, and each group of the bracket units includes a first bracket sheet and a second bracket sheet, and the first bracket sheet and the second bracket sheet are connected to each other; multiple steel bar brackets are circumferentially connected to the support support body, and multiple layers of the steel bars are tied to the steel bar brackets in a longitudinal and annular alternating manner along the inner side of the support support main frame. The present invention can improve work efficiency and enhance the stability and deformation resistance of the entire support bracket.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a supporting system for a bottom head of a steel containment vessel of a reactor building. 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 adheres to the world's advanced nuclear power generation design concept and has advanced modular construction technology. The bottom head of the reactor steel containment of the nuclear power plant is supported by a steel structure + steel bar and pipeline integrated module, which serves as a temporary support system for the bottom head of the steel containment. Finally, after the concrete of the lower part of the steel containment is poured, the foundation of the entire reactor building and shielding building is formed. The integrated module is composed of the foundation steel structure support bracket, the steel bar bracket and the 6-9 layers of steel bars and pipelines of the external foundation.

[0003] When constructing this part, the traditional method is to assemble and tie the steel bars directly on site. The steel bar bracket used is composed of several steel bars. This method has high requirements on the quality of manually tied steel bars when fixing multiple layers of steel bars. If the binding is missed or the binding is unstable, the steel bars are prone to displacement or deformation, resulting in unstable steel bar binding. In addition, in the current traditional construction method, it is necessary to assemble the steel structure support bracket on site, weld the steel bar bracket, locate the steel bar position, and use manual binding and pipeline installation construction to concrete pouring, which takes a long time and has low work efficiency. Summary of the invention

[0004] The invention provides a supporting system for a bottom head of a steel containment vessel of a reactor building, aiming to improve working efficiency.

[0005] The present invention is implemented by the following technical solutions: A support system for a bottom head of a steel containment vessel of a reactor building, comprising a support support body, multiple layers of steel bars and a plurality of steel bar supports, wherein the support support body comprises a plurality of support units, and the plurality of support units are assembled and combined in a ring shape to form the support support body, and each group of the support units comprises a first support sheet and a second support sheet, and the first support sheet and the second support sheet are connected to each other;

[0006] A plurality of the steel bar supports are circumferentially connected to the support support body, and multiple layers of the steel bars are tied to the steel bar supports in a longitudinal and annular alternating manner along the inner side of the support support main frame.

[0007] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0008] The provision of the steel bar support in this scheme can support and fix the multiple layers of staggered steel bars, making the installation of the multiple layers of steel bars more stable and improving the deformation resistance of the entire support system.

[0009] In this solution, the main frame body, multi-layer steel bars and steel bar brackets used to support the limiting steel bars are integrated into an integrated module, which can ensure that the prefabricated integrated module is accurately positioned on site, so that it can be directly hoisted into place during actual operation, reducing the on-site assembly process and greatly improving construction efficiency. The assembly of the support bracket body and the steel bar binding work can be transferred to the ground for prefabrication in advance, and the hoisting can be completed by vertical transportation equipment, thereby removing the bracket assembly and steel bar binding work from the critical path, thereby achieving the purpose of shortening the main line construction period.

[0010] In the present solution, the first bracket sheet and the second bracket sheet are connected to each other to form a group of bracket units. By assembling multiple groups of bracket units, the 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 present invention, 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.

[0011] 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 connected to columns, the bottoms of the columns of the inclined steel beam and the horizontal steel beam are flush, and diagonal braces are connected between two adjacent columns.

[0012] Beneficial effect: The structure of the oblique steel beams and 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 an annular concave spherical shape as a whole, 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. The setting of the oblique 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 support bracket body formed after later assembly.

[0013] 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.

[0014] 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.

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

[0016] 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 tied in a crisscross manner on the main body of the support bracket 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 sets the outer steel frame to connect with the steel bars, which can meet the requirements 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. The setting of the rib plate in this solution can enhance the connection strength between the outer steel frame and the round steel column, and facilitate the smooth connection between the outer steel frame and the round steel column.

[0017] Furthermore, a horizontal lifting ear and an oblique lifting ear are respectively connected to the horizontal steel beam and the oblique steel beam of the first bracket sheet or the second bracket sheet. 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. A steel bar hole is opened on the oblique lifting ear.

[0018] Beneficial effect: In this solution, horizontal lifting ears and oblique lifting ears are set 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 is convenient for lifting operation and saves manpower. In this solution, steel bar holes are opened on the oblique lifting ears to facilitate the smooth passage of steel bars through the steel bar holes. In the event of a conflict between the lifting ears and the steel bars, the steel bars can be kept from being cut, so that the steel bars can form a closed loop, thereby improving the force-bearing capacity of the entire support bracket.

[0019] Furthermore, the multiple steel bar supports are composed of multiple groups of first steel bar supports, multiple groups of second steel bar supports and multiple groups of third steel bar supports, the multiple groups of first steel bar supports and multiple groups of second steel bar supports are distributed circumferentially at intervals along the inner side of the support support body, and the multiple groups of third steel bar supports are distributed circumferentially at intervals along the horizontal top surface of the support support body.

[0020] Beneficial effects: The steel bar supports in this solution are divided into three types, and the three types of steel bar supports can respectively support the steel bars located on the inner side of the support support body and the steel bars located on the top of the support support body. In practical applications, corresponding support can be provided according to the position arrangement of the steel bars.

[0021] Furthermore, multiple groups of the first steel bar supports are arranged at intervals of 174°~343.125° clockwise from the support support body, multiple groups of the second steel bar supports are arranged at intervals of 343.125°~174° clockwise from the support support body, and multiple groups of the third steel bar supports are arranged at intervals of 332°~186° clockwise from the support support body.

[0022] Beneficial effect: The position arrangement of multiple groups of first steel bar supports, multiple groups of second steel bar supports and multiple groups of third steel bar supports in this scheme can correspond to the support of different layers of steel bar positions, so that multiple layers of steel bars can be effectively and stably supported by the steel bar supports.

[0023] Further, the first steel bar support and the second steel bar support include two symmetrically connected unit trusses, the unit trusses include an arc panel arranged along the inner side of the support support body, a plurality of blocks are sequentially connected along the arc profile of the arc panel, a plurality of support rods are connected between the bottom of the arc panel and the first support sheet or the second support sheet of the support support body, and an inclined connecting rod is connected between the plurality of support rods, and the length of the arc panel on the first steel bar support and the second steel bar support, and the number and length of the support rods and the connecting rods are adapted to the steel bars to be tied;

[0024] The multiple groups of third steel bar supports all include a circumferentially arranged horizontal panel and a plurality of vertical support rods; the horizontal steel beam of the first support sheet or the second support sheet is connected to a support horizontal steel beam; the plurality of vertical support rods are vertically connected to the support horizontal steel beam; the top ends of the vertical support rods of the multiple groups of third steel bar supports are connected by a circumferentially arranged horizontal panel.

[0025] Beneficial effect: The setting of the curved panel in this scheme can match the inner concave surface of the supporting bracket body, so that the shape of the steel bars after binding conforms to the shape of the entire supporting device. In addition, the block set on the curved panel can support the steel bars and prevent the steel bars from slipping, thereby improving the stability of the steel bar binding position.

[0026] The steel bar bracket in this solution can effectively provide stable support and limiting effect on the steel bars, making the installation position of the steel bars more stable, and can ensure the precise positioning of the steel bars and reduce installation errors.

[0027] Furthermore, the bottom of the steel bar supported by the steel bar support is connected to a pipeline fixing tool, and the pipeline fixing tool is used to support the pipeline.

[0028] Beneficial effect: The pipeline fixing tool in this scheme is used to support the pipeline and provide support and installation points for the installation of the pipeline, so that the pipeline, steel bars and the supporting bracket body can be combined into one, which is convenient for the overall lifting of the module block and improves work efficiency.

[0029] Furthermore, a plurality of circumferentially spaced hook-removing grooves are installed on the surface of the steel bars located in the uppermost layer among the multiple layers of the steel bars, and the hook-removing grooves are sequentially arranged opposite to the multiple groups of oblique steel beams and horizontal steel beams on and along the first support sheet or the second support sheet, and a through hole is opened on the hook-removing groove located above the oblique steel beam, and the oblique lifting ear can pass through the through hole.

[0030] Beneficial effect: In this solution, since the sling tool is relatively large and heavy and not easy to operate, the hook-removing slide groove provided in this solution can be used as an auxiliary slide, which can guide the hook in the sling tool, so that the hook that cooperates with the lifting ear can be accurately moved to the lifting ear position and used in cooperation with the lifting ear. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0032] Figure 1 This is an overall diagram of a support system for a bottom head of a steel containment vessel of a reactor building according to the present invention;

[0033] Figure 2 It is an elevation view of the first bracket sheet in the support system of the bottom head of the steel containment vessel of a reactor building of the present invention;

[0034] Figure 3 It is an elevation view of the second bracket sheet in the support system of the bottom head of the steel containment vessel of a reactor building of the present invention;

[0035] Figure 4 It is a top view of a first support sheet and a second support sheet in a support system for a bottom head of a steel containment vessel of a reactor building of the present invention;

[0036] Figure 5 It is a top view of a support system for a bottom head of a steel containment vessel of a reactor building according to the present invention, wherein a first support sheet and a second support sheet are connected to form a frame;

[0037] Figure 6 It is a schematic diagram of the arrangement positions of horizontal lifting lugs and oblique lifting lugs in a supporting system for a bottom head of a steel containment vessel of a reactor building according to the present invention;

[0038] Figure 7 It is an elevation view of a horizontal lifting lug in a supporting system for a bottom head of a steel containment vessel of a reactor building of the present invention;

[0039] Figure 8 It is an elevation view of an oblique lifting lug in a supporting system of a bottom head of a steel containment vessel of a reactor building of the present invention;

[0040] Fig. 9 It is a top view of the inner and outer steel frames of a support system for a bottom head of a steel containment vessel of a reactor building of the present invention;

[0041] Fig.10 A top view of the arrangement of the counterweight and the operating platform in the support system of the bottom head of the steel containment vessel of a reactor building of the present invention;

[0042] Fig.11 A top view showing the position distribution of three types of steel bar supports in a support system for a bottom head of a steel containment vessel of a reactor building of the present invention;

[0043] Fig.12 This is a vertical view of the first steel bar support in a support system for a bottom head of a steel containment vessel of a reactor building of the present invention;

[0044] Fig.13 It is a vertical view of the second steel bar support in the support system of the bottom head of the steel containment vessel of a reactor building of the present invention;

[0045] Fig.14 It is an elevation view of the third steel bar support in the support system of the bottom head of the steel containment vessel of a reactor building of the present invention;

[0046] Fig.15 for Fig.12 or Fig.13 Sectional view at the middle AA position;

[0047] Fig.16 for Fig.12 or Fig.13 Cross-section of the middle BB position;

[0048] Fig.17 for Fig.16 Cross-sectional view of the middle CC position;

[0049] Fig.18 for Fig.12 Schematic diagram of the layout of the steel bars and pipelines in the middle steel bar support;

[0050] Fig.19 for Fig.14 Schematic diagram of the layout of the steel bars and pipelines in the middle steel bar support;

[0051] Fig. 20 It is a top view of Embodiment 2 of a support system for a bottom head of a steel containment vessel of a reactor building of the present invention;

[0052] Fig.21 It is a schematic diagram of the state of the coordination between the sling tool and the hook-removing slide groove in Example 2 of the support system for the bottom head of the steel containment vessel of a reactor building of the present invention.

[0053] Marks and corresponding parts names in the attached drawings:

[0054] 1A-first bracket sheet, 2A-second bracket sheet, 3A-connecting diagonal rod, 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, 4A-lifting ear layout position, 5A-horizontal lifting ear, 6A-diagonal lifting ear, 7A-steel bar hole, 8A-external steel frame, 9A-steel mesh, 10A-counterweight block, 11A-operating platform, 12-rib plate, unhooking slide 13.

[0055] 1-the first steel bar support, 2-the second steel bar support, 3-the third steel bar support, 1a-arc panel, 1b-short support rod, 1c-connecting rod, 1d-vertical connecting plate, 1e-support rod connector, 1f-steel structure support steel beam, 1g-oblique connecting plate, 1h-long support rod, 1j-block, 3a-horizontal steel beam of support, 3b-vertical support rod, 3c-horizontal panel, b6-6th layer of steel bars, b7-7th layer of steel bars, b8-8th layer of steel bars, b9-9th layer of steel bars, 4-pipeline, 4a-pipeline fixing tooling. DETAILED DESCRIPTION

[0056] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0057] like Figure 1-Figure 10As shown, this embodiment 1 provides a support system for the bottom head of the steel containment of a reactor building, including a support bracket body, multiple layers of steel bars (6-9 layers of steel bars for the external foundation), multiple steel bar brackets and pipes. The support bracket body includes multiple groups of bracket units, which are assembled and combined in a ring shape to form the support bracket body. Each group of bracket units includes a first bracket sheet 1A and a second bracket sheet 2A. The first bracket sheet 1A and the second bracket sheet 2A are connected to each other. In this embodiment, the first bracket sheet 1A and the second bracket sheet 2A are a total of 32 pieces, forming 16 bracket units. The 16 bracket units are assembled and combined into an annular concave spherical foundation steel structure support bracket. The steel structure support bracket is an annular concave spherical support bracket. The frame is 5.486m high, with an inner diameter of 21.336m and an outer diameter of 42.212m. It is made of a steel structure support composed of Q355B seamless steel pipes, H-shaped steels, T-shaped steels, steel plates, etc. The external foundation of the support support needs to be tied with steel bars for 6 to 9 layers, weighing about 152.169t. It is fixed to the steel structure support support through a steel bar bracket. Each layer of steel bars is tied to the steel bar bracket in an alternating manner longitudinally and circumferentially. According to the theoretical installation position, the pipeline is fixed to the lower part of the steel bar with angle steel made of pipeline fixing tooling.

[0058] Specific: Combined Figure 2 and Figure 3 As shown, in this embodiment, the first bracket sheet 1A and the second bracket sheet 2A 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.

[0059] 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.

[0060] like Figure 3As shown, in this embodiment, a column at the bottom of the horizontal steel beam G11 of the second bracket sheet 2A is a round steel column C2, that is, the second bracket sheet 2A in this embodiment is modified on the structure of the first bracket sheet 1A, 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 2A 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 2A is cut off so that the length of the horizontal short steel beam G11B is The round steel column C2 is shorter than the horizontal long steel beam G11A, and 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 2A. 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 to 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 by connecting plates and high-strength bolts.

[0061] 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 1A and the oblique steel beam G12 and the horizontal steel beam G11 of the second bracket sheet 2A. 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 1A and the second bracket sheet 2A, 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 1A and the second bracket sheet 2A are distributed in an eight-shaped shape, that is, the first bracket sheet 1A and the second bracket sheet 2A are arranged obliquely to each other, and one end of the first bracket sheet 1A and the second bracket sheet 2A are close to each other.

[0062] Combination Figure 1 As shown, cross-arranged connecting diagonal rods 3A are connected between the columns of the first bracket sheet 1A and the columns of the second bracket sheet 2A. The arrangement of the connecting diagonal rods 3A can further enhance the strength and stability of the connection between the first bracket sheet 1A and the second bracket sheet 2A. The first bracket sheet 1A and the second bracket sheet 2A are connected to form a frame, so as to facilitate the later combination into a whole annular supporting bracket.

[0063] like Figure 6As shown, the ear arrangement position 4 on the first bracket sheet 1A or the second bracket sheet 2A is shown in the figure. In this embodiment, the horizontal steel beam G11 and the oblique steel beam G12 of the first bracket sheet 1A or the second bracket sheet 2A are respectively connected with a horizontal ear 5A and an oblique ear 6A. In this embodiment, the horizontal ear 5A and the oblique ear 6A connected to the horizontal steel beam G11 and the oblique steel beam G12 of the second bracket sheet 2A are taken as an example for explanation. The horizontal ear 5A on the horizontal steel beam G11 is located at the end away from the oblique steel beam G12 (that is, the horizontal ear 5A is located at the right part of the horizontal steel beam G11), and the oblique ear 6A is located at the upper part of the oblique steel beam G12.

[0064] like Figure 7 and Figure 8 As shown, the horizontal long steel beam G11A passes through the lower part of the horizontal lifting lug 5A and is welded or bolted to the horizontal lifting lug 5A, and the oblique steel beam G12 passes through the lower part of the oblique lifting lug 6A and is welded or bolted to the oblique lifting lug 6A. Figure 8 As shown, a steel bar hole 7A is provided on the inclined lifting ear 6A. Since it is necessary to tie annular steel bars to reinforce the supporting bracket body formed by assembling the first bracket sheet 1A and the second bracket sheet 2A in a later stage, the steel bar hole 7A provided on the inclined lifting ear 6A in this embodiment can meet the steel bar penetration requirements. The function of the inclined lifting ear 6A in this embodiment is to meet the lifting of the assembled bracket unit while not cutting off the steel bar when the inclined lifting ear 6A conflicts with the passing 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 7A on the inclined lifting ear 6A is determined according to the spacing of the steel bars to be tied, and the number of the steel bar holes 7A is designed accordingly according to the actual number of steel bars passing through.

[0065] like Fig. 9 As shown, the outer side of the round steel column C2 is connected with an outer steel frame 8A. In this embodiment, the outer steel frame 8A 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 8A is rectangular. Two rib plates 12 are welded between the four side walls of the round steel column C2 and the outer steel frame 8A. The setting of the rib plates 12 can connect the outer steel frame 8A 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 8A, thereby improving the service life.

[0066] 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 9A. In this embodiment, an outer steel frame 8A 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 9A conflicts with the round steel column C2. This will cause the cut steel mesh 9A to be unable to close the loop. The setting of the outer steel frame 8A can weld the ends of the steel bars on the cut steel mesh 9A to the outer steel frame 8A, thereby satisfying the connection between the steel bars and the round steel column C2 to form a force closed loop of the steel mesh 9A while improving the overall stiffness of the entire support bracket body.

[0067] like Fig.10 As shown, a counterweight block 10A used in conjunction with hoisting is arranged on the top of the supporting bracket body in this embodiment, and an operating platform 11A is installed on the outside of the supporting bracket body as a whole.

[0068] 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 10A 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 operating platform 11A is composed of steel springboards and railings.

[0069] like Figure 11-19 As shown, in this embodiment, multiple steel bar supports are circumferentially connected to the support support body, and multiple layers of steel bars are tied to the steel bar supports in a longitudinal and circular alternating manner along the inner side of the support support main frame. In this embodiment, multiple steel bar supports are composed of multiple groups of first steel bar supports 1, multiple groups of second steel bar supports 2 and multiple groups of third steel bar supports 3. Multiple groups of first steel bar supports 1 and multiple groups of second steel bar supports 2 are circumferentially spaced along the inner side of the support support body, and multiple groups of third steel bar supports 3 are circumferentially spaced along the horizontal top surface of the support support body. Specifically: multiple groups of first steel bar supports 1 are arranged at 174°~343.125° clockwise from the support support body, multiple groups of second steel bar supports 2 are arranged at 343.125°~174° clockwise from the support support body, and multiple groups of third steel bar supports 3 are arranged at 332°~186° clockwise from the support support body.

[0070] Combination Fig.12 , Fig.13 , Fig.15 and Fig.16As shown, the first steel bar support 1 and the second steel bar support 2 include two symmetrically connected unit trusses, and the unit trusses include an arc-shaped panel 1a arranged along the inner side of the supporting support body, and the arc-shaped panel 1a is inclined along the oblique steel beam on the supporting support body. A plurality of blocks 1j are connected in sequence along the arc-shaped contour of the arc-shaped panel 1a, and the blocks 1j are welded to the arc-shaped panel 1a.

[0071] A plurality of supporting rods are connected between the bottom of the curved panel 1a and the first support sheet 1A or the second support sheet 2A supporting the support body, and an inclined connecting rod 1c is connected between the plurality of supporting rods. The length of the curved panel 1a on the first steel bar support 1 and the second steel bar support 2, and the number and length of the supporting rods and the connecting rod 1c are adapted to the steel bars to be tied, such as Fig.12 As shown, the support rods include short support rods 1b and long support rods 1h. In this embodiment, three short support rods 1b and four long support rods 1h are connected at intervals at the bottom of the curved panel 1a of the first steel bar support 1, and the right end of the curved panel 1a of the first steel bar support 1 extends to above the horizontal steel beam of the first support sheet or the second support sheet.

[0072] like Fig.13 As shown, the second steel bar support 2 of the present invention is slightly modified on the basis of the first steel bar support, mainly in that the length and quantity of the curved panel 1a, the support rods and the connecting rods 1c are adjusted according to the elevation position of the steel bars. In this embodiment, the bottom of the curved panel 1a of the second steel bar support 2 is connected with three short support rods 1b and three long support rods 1h at intervals, and the right end of the curved panel 1a of the second steel bar support 2 does not extend above the horizontal steel beam of the first support sheet or the second support sheet, but is located on the upper part of the inclined steel beam.

[0073] like Fig.15 , Fig.16 and Fig.17 As shown, an oblique connecting plate 1g is connected between the two short supports 1b of the two symmetrically arranged unit trusses in the first steel bar support 1 and the second steel bar support 2, and the oblique connecting plate 1g is located at the lower part of the two short supports 1b; a support rod connector 1e is connected between the two long supports 1h of the two symmetrically arranged unit trusses in the first steel bar support 1 and the second steel bar support 2, and the two symmetrically arranged unit trusses are connected through the support rod connector 1e. In this embodiment, a vertical connecting plate 1d is connected between and at the lower part of the two long supports 1h of the two symmetrically arranged unit trusses in the first steel bar support 1 and the second steel bar support 2. In this embodiment, a steel structure support steel beam 1f is welded or screwed on the upper surface of the oblique steel beam, and the steel structure support steel beam 1f is an I-beam. The first steel bar support 1 and the second steel bar support 2 are connected to the steel structure support steel beam 1f through the oblique connecting plate 1g and the vertical connecting plate 1d at the lower part.

[0074] like Fig.14As shown, in this embodiment, multiple groups of third steel bar supports 3 all include a horizontal panel 3c set in an annular manner and multiple vertical support rods 3b, the support horizontal steel beam 3a is welded or bolted to the horizontal steel beam of the first support sheet or the second support sheet, and multiple vertical support rods 3b are vertically connected to the support horizontal steel beam 3a, and the top ends of the vertical support rods 3b of the multiple groups of third steel bar supports 3 are connected into one by the annular horizontal panel 3c, that is, the horizontal panel 3c is ring-shaped, and the ring-shaped horizontal panel 3c is welded or screwed to the top ends of the multiple groups of third steel bar supports 3.

[0075] Combination Fig.18 As shown, the size and position design of the first steel bar support 1 and the second steel bar support 2 match the sixth layer of steel bars, the seventh layer of steel bars, and the ninth layer of steel bars to be tied thereon, thereby supporting the steel bars. The block 1j on the curved panel 1a provides longitudinal support for the steel bars to prevent them from slipping.

[0076] Combination Fig.19 As shown, the third steel bar support 3 is mainly a horizontal support, and its size and position are designed to match the seventh and eighth layers of steel bars to be tied thereon, thereby supporting the steel bars.

[0077] In this embodiment, the bottom of the steel bar supported by the steel bar support is connected to a pipeline fixing tool 4a, and the pipeline fixing tool 4a is used to support the pipeline 4. Fig.18 and Fig.19 As shown, in this embodiment, the bottom of the steel bars supported by the first steel bar support 1 and the second steel bar support 2 and the bottom of the steel bars supported by the top of the third steel bar support 3 are welded with pipe fixing fixtures 4a. The pipe fixing fixtures 4a are arranged according to the actual location of the pipe 4. The pipe fixing fixtures 4a are made of angle steel. The pipe 4 passes through the pipe fixing fixtures 4a and is stably supported by the pipe fixing fixtures 4a.

[0078] Among the above three types of steel bar supports, the curved panel 1a is made of angle steel with a specification of L125*80*7, the horizontal panel 3c is made of angle steel with a specification of L75*8, the block 1j on the upper part of the curved panel 1a is made of 20mm thick steel plate, the connecting rod 1c at the lower part of the curved panel 1a is made of angle steel with a specification of L75*8, the short support rod 1b and the long support rod 1h are made of channel steel C12, the oblique connecting plate 1g is made of 10mm thick steel plate, the vertical connecting plate 1d is made of 8mm thick steel plate, the pipeline fixing tool 4a is made of L75*8 angle steel and is fixed to the lower part of the steel bar, and the overall material of the steel bar support and the pipeline fixing tool 4a is Q235B.

[0079] The reactor building annular concave spherical surface foundation steel structure + steel bar and pipeline 4 integrated module of the present invention forms the support system of the present invention as a whole. When the support system is hoisted, its deformation and stress cannot be too large, otherwise the module will be damaged, resulting in the displacement of the steel bar and pipeline 4, and it cannot be accurately positioned. This embodiment uses the finite element method to carry out detailed theoretical calculations on the steel structure + steel bar bracket and pipeline 4 tooling of the present invention to determine the deformation and stress state during hoisting. First, the steel structure + steel bar and pipeline 4 integrated module structure is modeled and finite element divided. The basic steel structure support bracket + steel bar bracket is subject to the deadweight of the structure, the weight of the steel bar and the reaction force of the lifting lug. During the calculation, the weight of the steel bar is evenly distributed to each node, and these nodes are constrained to exclude rigid body displacement. Calculations show that the steel structure support bracket + steel bar bracket of the present invention is not easy to deform, has good bending and torsion resistance, and strong shear resistance. It can provide strong support for steel bar binding and hoisting, and can improve the overall stability and rigidity of the steel structure + steel bar and pipeline 4 integrated module, so that it meets the requirements of overall hoisting.

[0080] Embodiment 2, as Fig. 20 and Fig.21 As shown, the difference between this embodiment and embodiment 1 is that: a plurality of circumferentially spaced and evenly distributed hook-removing grooves 13 are installed on the surface of the steel bars located in the uppermost layer of the multi-layer steel bars, and the hook-removing grooves 13 are arranged in sequence opposite to the oblique steel beams and horizontal steel beams on and along the multiple groups of first bracket sheets or second bracket sheets, and a through hole is opened on the hook-removing groove 13 located above the oblique steel beam, and the oblique lifting ear can pass through the through hole, so as to facilitate the smooth lifting of the hook on the sling tool on the oblique lifting ear at a later stage.

[0081] In this embodiment, the hook removing chute 13 is made of 10mm thick steel plate to form a trough structure. The hook removing chute 13 is arranged according to the surface formed by the upper steel bars and has a certain curvature. The part of the hook removing chute 13 located above the horizontal steel beam is inclined toward the horizontal lifting ear. The end of the structure of the hook removing chute 13 located above the horizontal steel beam faces the horizontal lifting ear but is staggered with the horizontal lifting ear. This can not only guide the hook of the sling tool, but also avoid obstruction to the horizontal lifting ear.

[0082] In this embodiment, since the sling tool is relatively large and heavy and is not easy to operate, the hook-removing slide groove 13 provided in this embodiment can be used as an auxiliary slideway to guide the hook in the sling tool, so that the hook that cooperates with the lifting ear can be accurately moved to the lifting ear position for use in cooperation with the lifting ear.

[0083] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A support system for the bottom head of a steel containment vessel of a reactor building, comprising a support bracket body, multiple layers of steel bars and multiple steel bar brackets, characterized in that: The support bracket body includes a plurality of bracket units, which are assembled and combined in a ring shape to form the support bracket body, and each group of the bracket units includes a first bracket sheet and a second bracket sheet, and the first bracket sheet and the second bracket sheet are connected to each other; A plurality of the steel bar supports are circumferentially connected to the support support body, and multiple layers of the steel bars are tied to the steel bar supports in a longitudinal and annular alternating manner along the inner side of the support support main frame; the first support sheet and the second support sheet both include 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; the bottoms of the oblique steel beam and the horizontal steel beam are both connected to columns, the bottoms of the columns of the oblique steel beam and the horizontal steel beam are both flush, and oblique braces are connected between two adjacent columns; A column at the bottom of the horizontal steel beam of the second bracket sheet is a round steel column. The horizontal steel beam of the second bracket 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 of the round steel column is located above the horizontal steel beam of the second bracket sheet. The round steel column is connected to the horizontal short steel beam and the horizontal long steel beam. An outer steel frame is connected to the outer side of the round steel column, and the outer steel frame is rectangular. Ribs are connected to the four side walls of the round steel column and the outer steel frame.

2. A support system for the bottom head of a steel containment vessel of a reactor building 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 ear and an oblique lifting ear. 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. The oblique lifting ear is provided with a steel bar hole.

3. A support system for the bottom head of a steel containment vessel of a reactor building according to claim 1, characterized in that: The multiple steel bar supports are composed of multiple groups of first steel bar supports, multiple groups of second steel bar supports and multiple groups of third steel bar supports. The multiple groups of the first steel bar supports and the multiple groups of the second steel bar supports are distributed circumferentially at intervals along the inner side of the support support body, and the multiple groups of the third steel bar supports are distributed circumferentially at intervals along the horizontal top surface of the support support body.

4. A support system for the bottom head of a steel containment vessel of a reactor building according to claim 3, characterized in that: Multiple groups of the first steel bar supports are arranged at 174°~343.125° clockwise from the support support body, multiple groups of the second steel bar supports are arranged at 343.125°~174° clockwise from the support support body, and multiple groups of the third steel bar supports are arranged at 332°~186° clockwise from the support support body.

5. A support system for the bottom head of a steel containment vessel of a reactor building according to claim 3 or 4, characterized in that: The first steel bar support and the second steel bar support include two symmetrically connected unit trusses, the unit trusses include an arc panel arranged along the inner side of the support support body, a plurality of blocks are sequentially connected along the arc profile of the arc panel, a plurality of support rods are connected between the bottom of the arc panel and the first support sheet or the second support sheet of the support support body, and an inclined connecting rod is connected between the plurality of support rods, and the length of the arc panel on the first steel bar support and the second steel bar support, and the number and length of the support rods and the connecting rods are adapted to the steel bars to be tied; The multiple groups of third steel bar supports all include a circumferentially arranged horizontal panel and a plurality of vertical support rods; the horizontal steel beam of the first support sheet or the second support sheet is connected to a support horizontal steel beam; the plurality of vertical support rods are vertically connected to the support horizontal steel beam; the top ends of the vertical support rods of the multiple groups of third steel bar supports are connected by a circumferentially arranged horizontal panel.

6. A support system for the bottom head of a steel containment vessel of a reactor building according to claim 1, characterized in that: The bottom of the steel bar supported by the steel bar support is connected with a pipeline fixing tool, and the pipeline fixing tool is used to support the pipeline.

7. A support system for the bottom head of a steel containment vessel of a reactor building according to claim 2, characterized in that: A plurality of circumferentially spaced hook-removing grooves are installed on the surface of the steel bars located on the topmost layer among the multiple layers of the steel bars. The hook-removing grooves are sequentially arranged opposite to the multiple groups of oblique steel beams and horizontal steel beams on and along the first support sheet or the second support sheet. A through hole is opened on the hook-removing groove located above the oblique steel beam, and the oblique lifting ear can pass through the through hole.

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