Large steel-faced modular structure and method of construction thereof

Abstract

This invention relates to the field of modular design and construction technology for nuclear engineering civil engineering, and discloses a large steel-clad modular structure and its construction method. The large steel-clad modular structure includes: a bottom steel-clad module; side wall steel-clad modules, with multiple side wall steel-clad modules arranged circumferentially around the side edges of the bottom steel-clad module; and a top steel-clad module, suitable for connection with the bottom steel-clad module and multiple side wall steel-clad modules to form an integral large steel-clad modular structure. The top steel-clad module is provided with multiple first compartments and multiple second compartments, the first compartments being grouting areas, and the second compartments being areas for subsequent steel cladding, with the area of ​​the second compartments being much smaller than that of the first compartments. The large steel-clad modular structure provided by this invention realizes the overall hoisting, pouring, and one-time grouting of the steel cladding of the room, greatly reducing on-site welding and weld inspection of the steel cladding, improving construction efficiency and quality, and reducing labor input and construction cycle.

Description

Technical Field

[0001] This invention relates to the field of modular design and construction technology for nuclear engineering civil engineering, specifically to a large steel-clad modular structure and its construction method. Background Technology

[0002] In nuclear engineering civil engineering, the construction of large steel-clad room walls generally adopts either the post-application method or the single-piece pre-application method, while the steel cladding of the room roof is constructed using the post-application method. However, the above construction methods involve a huge amount of on-site splicing work, resulting in problems such as a large amount of on-site welding work, difficulty in on-site weld inspection, large labor input, and a poor construction environment, which directly affect the construction progress of nuclear engineering projects.

[0003] In the field of nuclear engineering, small-volume steel-clad rooms can be hoisted and grouted as a whole, but this is not suitable for large steel-clad structures. The main problem is that the large volume of large steel clads makes them impossible to hoist directly as a whole, and there is also the issue of insufficient grouting to reach all areas of the steel clads, resulting in voids and incomplete compaction. Therefore, one traditional technique to solve the problem of hoisting large steel clads as a whole is to break them down into numerous smaller pieces, which are then spliced ​​and welded together on-site. Another traditional technique to solve the problem of grouting large steel clads in one go is to use a post-application method to ensure the quality of the pouring. However, these traditional techniques lead to many problems, such as long construction periods, large labor inputs, a large amount of on-site welding, and inconsistent quality.

[0004] In order to accelerate the industrialization of civil engineering in nuclear projects, solve the problem that large steel-clad structures cannot be directly hoisted as a whole and grouted in one go, and also avoid many problems such as long construction cycle, large amount of labor input, large amount of on-site welding and inability to guarantee quality of steel-clad structures, improve construction efficiency and reduce on-site work, it is necessary to develop a structure and construction method suitable for modular construction of large steel-clad structures. Summary of the Invention

[0005] In view of this, the present invention provides a large steel-clad modular structure and its construction method to solve the problems in the prior art that large steel-clad structures cannot be directly hoisted as a whole and grouted in one go, and that the construction cycle of steel-clad structures is long, the amount of manual labor is large, the amount of on-site welding is large and the quality cannot be guaranteed.

[0006] In a first aspect, the present invention provides a large steel-clad modular structure, comprising:

[0007] Steel-clad modules at the bottom of the slab;

[0008] The side wall steel cladding module is fixedly connected to the bottom steel cladding module along one side of the height direction, and multiple side wall steel cladding modules are arranged circumferentially around the side edge of the bottom steel cladding module.

[0009] The top steel cladding module is fixedly installed on the side of the side wall steel cladding module away from the bottom steel cladding module along the height direction. The top steel cladding module is suitable for connecting with the bottom steel cladding module and multiple side wall steel cladding modules to form an integral large steel cladding module structure.

[0010] The steel-clad module on the top of the slab has multiple first compartments and multiple second compartments. The first compartment is the grouting area, and the second compartment is the area for subsequent steel cladding. The area of ​​the second compartment is much smaller than that of the first compartment.

[0011] Beneficial Effects: The large steel-clad modular structure provided by this invention consists of a top steel-clad module, a bottom steel-clad module, and side wall steel-clad modules connected together to form an integral structure. The entire process is prefabricated in the factory, enabling the overall hoisting, installation, and pouring of the steel cladding of the room. This significantly reduces the construction cycle, ensures welding quality, and reduces labor input, effectively promoting the industrialization of nuclear engineering. By dividing the top steel-clad module into multiple first and second compartments, grouting can be performed simultaneously in multiple first compartments, ensuring that the grout reaches all areas of the steel cladding at once. This avoids voids and incomplete compaction, solving the problem of the difficulty of achieving complete grouting in large-volume steel-clad modules. Furthermore, by pouring concrete in the second compartments and then attaching the top steel cladding panel, the amount of on-site work such as welding and weld inspection, formwork erection and dismantling, and rebar tying is greatly reduced. This improves on-site construction quality and efficiency, reduces labor input, and shortens the construction cycle.

[0012] In one alternative implementation, the steel cladding module on the top of the slab includes:

[0013] The top steel cladding panel body is first attached to the first compartment. The width of the top steel cladding panel body along the X direction is L, and the length along the Y direction is B.

[0014] The partition stiffening ribs are arranged along the Y direction on the steel cladding module on the top of the plate. Multiple partition stiffening ribs are spaced apart along the X direction on the steel cladding module on the top of the plate. The partition stiffening ribs are suitable for dividing the steel cladding module on the top of the plate into multiple first partitions and multiple second partitions. The first partitions and second partitions are arranged alternately.

[0015] Among them, the distance between each pair of adjacent opposite stiffening ribs along the X direction on the steel cladding module on the top of the plate is L1, and B×L1 is the area of ​​the first segment; the distance between each pair of adjacent opposite stiffening ribs along the X direction on the steel cladding module on the top of the plate is L2, and B×L2 is the area of ​​the second segment.

[0016] Beneficial effects: Since the area of ​​the second compartment is much smaller than that of the first compartment, by first attaching the steel cladding panel body to the first compartment, the amount of on-site work such as on-site welding and weld inspection of the steel cladding, formwork erection and dismantling, and rebar tying is greatly reduced. At the same time, the deformation of the steel cladding can be effectively controlled, which is conducive to improving the quality and efficiency of on-site construction. The compartment stiffening ribs are arranged only along a single Y direction. The compartment stiffening ribs are used to separate the first compartment and the second compartment, while providing grouting holes for the first compartment and providing a support platform for welding the steel cladding panel attached to the second compartment.

[0017] In one alternative embodiment, a grouting hole is provided on the partition stiffening rib, and the grouting hole is connected to the first partition.

[0018] Beneficial effects: By opening multiple grouting holes on the stiffening ribs of the compartments, grouting can be carried out simultaneously and quickly into multiple first compartments. On the one hand, this allows the grout to reach all areas of the steel cladding at once, avoiding voids and looseness, and solving the problem of the difficulty of grouting large-volume steel cladding modules in one go. On the other hand, it can improve on-site construction efficiency and shorten the construction cycle.

[0019] In one alternative embodiment, the steel cladding module on the top of the slab further includes:

[0020] The main stiffening rib is set along the entire length L of the steel-clad module on the top of the plate;

[0021] The top stiffening rib is set along the entire length L1 of the first section;

[0022] The secondary stiffener and the main stiffener are alternately arranged along the Y direction. The secondary stiffener and the main stiffener are suitable for dividing the first section into multiple grouting paths, and the size of each grouting path is B1×L1.

[0023] Beneficial effects: By setting the top main stiffening rib and the top secondary stiffening rib on the steel-clad module on the top of the slab, the deformation and stress requirements of hoisting and pouring are met; the top secondary stiffening rib and the top main stiffening rib divide the first section into multiple grouting paths, and grouting can be carried out simultaneously along each grouting path during on-site construction, thereby improving work efficiency through synchronous grouting; the top main stiffening rib and the top secondary stiffening rib are set only along a single X direction, thereby ensuring the flow of grout material and ensuring the quality of pouring.

[0024] In one optional embodiment, both the top main stiffening rib and the top secondary stiffening rib are provided with connecting holes, which are connected to the first partition.

[0025] Beneficial effects: By opening connecting holes in the top main stiffening rib and the top secondary stiffening rib, the grouting and venting needs of the first compartment can be met.

[0026] In one optional embodiment, the top steel cladding module further includes a rear-attached top steel cladding panel, which is attached to the second compartment. The rear-attached top steel cladding panel has a width of L2 in the X direction and a length of B in the Y direction.

[0027] Beneficial effects: The area of ​​the second compartment is much smaller than that of the first compartment. During the factory prefabrication process, the first compartment is first covered with the steel cladding panel body. By simultaneously grouting in multiple first compartments, the grout can reach all areas of the steel cladding at one time, solving the problem that it is difficult to reach all areas of the large-volume steel cladding module with one-time grouting. At the same time, during on-site construction, the steel cladding panel is only set in the second compartment, which greatly reduces the amount of on-site work such as on-site welding and weld inspection of the steel cladding, formwork erection and dismantling, and rebar binding, which is conducive to improving the quality and efficiency of on-site construction.

[0028] In one alternative implementation, the bottom steel cladding module includes:

[0029] The bottom steel cladding panel body;

[0030] The bottom main stiffening ribs are set along the X and Y directions on the bottom steel cladding panel body;

[0031] The bottom secondary stiffening ribs are alternately arranged with the bottom main stiffening ribs along the X and Y directions on the bottom steel cladding panel body. The bottom secondary stiffening ribs and the bottom main stiffening ribs are suitable for dividing the bottom steel cladding panel body into multiple sections.

[0032] Beneficial effects: The bottom main stiffening ribs and bottom secondary stiffening ribs are arranged in both directions on the bottom steel cladding panel body to divide the bottom steel cladding panel body into multiple sections, thereby meeting the needs of hoisting and casting deformation and stress.

[0033] In one alternative embodiment, the large steel-clad modular structure further includes a temporary support module, which comprises multiple temporary columns, one end of which is connected to the top main stiffening rib and the other end of which is connected to the bottom main stiffening rib.

[0034] Beneficial effects: By setting temporary support modules between the bottom steel cladding module and the top steel cladding module, the bottom and top steel cladding modules are supported. One end of each temporary column of the temporary support module is connected to the bottom main stiffening rib of the bottom steel cladding module, and the other end is connected to the top main stiffening rib of the top steel cladding module, thereby ensuring the stability and safety of the overall hoisting. After the wall and floor slab are poured, the temporary columns can be removed.

[0035] In one alternative implementation, the sidewall steel cladding module includes:

[0036] The side steel cladding panel body has construction access holes on it;

[0037] Side stiffening ribs are vertically installed in pairs on the side steel cladding panel body. The side stiffening ribs are suitable for dividing the side steel cladding panel body into multiple sections and for supporting and shaping the construction passage holes.

[0038] The back is covered with a steel panel, which is suitable for sealing the construction access hole.

[0039] Beneficial effects: By setting side stiffening ribs on the side steel cladding panel body, the needs of hoisting and pouring deformation and stress are met; by setting construction passage holes on the side wall steel cladding module, it is convenient for personnel passage and material transportation. After the basic construction is completed, the back-attached side steel cladding panel is set, and the wall concrete at the transportation hole position is poured.

[0040] Secondly, the present invention also provides a construction method for a large steel-clad modular structure as described above, comprising:

[0041] The concrete construction of the walls of the lower room and the floor slab of this floor is carried out. The floor slab is left with a grouting layer thickness H, and mechanical joints are left for the wall reinforcement to extend out. The factory completes the overall processing of the large steel-clad modular structure, hoisting it to the top of the lower floor slab and fixing it reliably with tooling.

[0042] At the location of the stiffening ribs of the steel-clad module on the top of the slab, grouting is carried out along the grouting path through the grouting holes to construct the first section until the grouting of the first section is dense;

[0043] Concrete is poured into the second section of the steel-clad module on the top of the slab, and then the steel-clad panel is attached to complete the steel cladding construction of this floor slab.

[0044] The wall reinforcement cage is mechanically connected to the wall reinforcement of the next layer. The formwork is set up on the non-steel cladding side of the wall. The steel cladding room is equipped with a support system. Then the wall concrete is poured, while leaving concrete for the construction passage hole for the final pour.

[0045] Connect the upper floor slab reinforcement cage, pour the upper floor slab concrete, and complete the upper floor slab construction;

[0046] The temporary columns and the support system of the steel-clad room were removed, the materials were transported out through the construction access hole, the back-mounted side steel cladding panels were then installed, and finally the wall concrete at the construction access hole location was poured to complete the entire pouring work of the steel-clad room.

[0047] Beneficial effects: The construction method for large steel-clad modular structures provided by this invention enables the overall hoisting, installation, and pouring of the steel cladding of a room. It solves the problem of the difficulty of achieving one-time grouting for large-volume steel-clad modules, greatly reduces the amount of on-site work such as on-site welding and weld inspection, formwork erection and dismantling, and rebar tying. This is conducive to improving the quality and efficiency of on-site construction, greatly optimizing the modular construction of walls and floors, reducing on-site rebar work, and accelerating the construction process. Attached Figure Description

[0048] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of a large steel-clad module structure near the top steel-clad module of the slab, according to an embodiment of the present invention.

[0050] Figure 2 for Figure 1 A magnified view of a portion of point P in the middle;

[0051] Figure 3 This is a schematic diagram of a large steel-clad module structure near the bottom steel-clad module of the plate, according to an embodiment of the present invention.

[0052] Figure 4 for Figure 3 A magnified view of a portion of point Q;

[0053] Figure 5 This is a schematic diagram of a large steel-clad module structure near the sidewall steel-clad module side, according to an embodiment of the present invention.

[0054] Figure 6 for Figure 5 A magnified view of a portion of the T-section;

[0055] Figure 7 for Figure 1 Schematic diagram of the cross-sectional structure at section AA;

[0056] Figure 8 for Figure 7 A magnified view of a portion of point D in the middle;

[0057] Figure 9 for Figure 7 A magnified view of a portion of point E in the middle;

[0058] Figure 10 for Figure 1 Schematic diagram of the cross-sectional structure at section CC;

[0059] Figure 11 for Figure 10 A magnified view of the area separated from the grouting hole at point F in the middle;

[0060] Figure 12 for Figure 10A magnified view of the grouting hole location area at point F in the middle;

[0061] Figure 13 This is a schematic diagram of the concrete construction of the floor slab and the lower wall in a construction method for a large steel-clad modular structure according to an embodiment of the present invention.

[0062] Figure 14 This is a construction diagram illustrating the installation of a large steel-clad modular structure in a construction method according to an embodiment of the present invention.

[0063] Figure 15 for Figure 14 A magnified view of a portion of point G in the middle;

[0064] Figure 16 This is a construction diagram illustrating the casting of the steel-clad module on the top of the slab in a construction method for a large steel-clad modular structure according to an embodiment of the present invention.

[0065] Figure 17 for Figure 16 A magnified view of a portion of point H in the middle;

[0066] Figure 18 This is a construction diagram illustrating the installation of the wall reinforcement cage in a construction method for a large steel-clad modular structure according to an embodiment of the present invention.

[0067] Figure 19 This is a construction diagram illustrating the pouring of concrete for the wall in a construction method for a large steel-clad modular structure according to an embodiment of the present invention.

[0068] Figure 20 This is a construction diagram illustrating the installation of floor slab reinforcement cages in a construction method for a large steel-clad modular structure according to an embodiment of the present invention.

[0069] Figure 21 This is a construction diagram illustrating the pouring of floor slab concrete in a construction method for a large steel-clad modular structure according to an embodiment of the present invention.

[0070] Figure 22 This is a construction diagram illustrating the removal of temporary columns and sealing of construction access holes in a construction method for a large steel-clad modular structure according to an embodiment of the present invention.

[0071] Explanation of reference numerals in the attached figures:

[0072] 10. Top steel cladding module; 101. First partition; 102. Second partition; 103. Grouting hole; 104. Grouting path; 105. Connecting hole; 11. Top steel cladding panel body; 12. Top main stiffening rib; 13. Top secondary stiffening rib; 14. Partition stiffening rib; 15. Rear-attached top steel cladding panel;

[0073] 20. Bottom steel cladding module; 21. Bottom steel cladding panel body; 22. Bottom main stiffening rib; 23. Bottom secondary stiffening rib;

[0074] 30. Side wall steel cladding module; 301. Construction access hole; 31. Side steel cladding panel body; 32. Side stiffening rib; 33. Post-attached side steel cladding panel;

[0075] 40. Temporary support module; 41. Temporary column;

[0076] 131. Grouting material; 141. Wall reinforcement cage; 151. Wall concrete; 161. Floor slab reinforcement cage; 171. Floor slab concrete. Detailed Implementation

[0077] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0078] The following is combined with Figures 1 to 22 The following describes embodiments of the present invention.

[0079] According to an embodiment of the present invention, in one aspect, a large steel-clad modular structure is provided, comprising:

[0080] 20 steel-clad modules for the bottom plate;

[0081] The side wall steel cladding module 30 is fixedly connected to the bottom steel cladding module 20 along one side of its height direction, and multiple side wall steel cladding modules 30 are arranged circumferentially around the side edge of the bottom steel cladding module 20.

[0082] The top steel cladding module 10 is fixedly installed on the side of the side wall steel cladding module 30 away from the bottom steel cladding module 20 along the height direction. The top steel cladding module 10 is suitable for connecting with the bottom steel cladding module 20 and multiple side wall steel cladding modules 30 to form an integral large steel cladding module structure.

[0083] The steel-clad panel module 10 is provided with multiple first partitions 101 and multiple second partitions 102. The first partition 101 is the grouting area, and the second partition 102 is the area for subsequent steel cladding. The area of ​​the second partition 102 is much smaller than the area of ​​the first partition 101.

[0084] It should be noted that the top steel clad module 10, the bottom steel clad module 20, the side wall steel clad module 30, and the overall large steel clad module structure are all prefabricated in the factory. "Top" in "top slab" refers to the top surface of the floor slab; "bottom" in "bottom slab" refers to the bottom surface of the floor slab; and "side" in "side wall" refers to the side of the wall closest to the steel-clad room. The side wall steel clad module 30 includes a left side steel clad module, a right side steel clad module, a front side steel clad module, and a rear side steel clad module. Since the basic structures of the left side steel clad module, right side steel clad module, front side steel clad module, and rear side steel clad module are the same, for better explanation and understanding, they are collectively referred to as side wall steel clad modules in this embodiment.

[0085] It is particularly important to note that the area of ​​the second segment 102 is much smaller than the area of ​​the first segment 101. Please refer to [link / reference needed]. Figure 1 As shown, to more intuitively illustrate the regional relationship between the second segment 102 and the first segment 101, Figure 1 The main body 11 of the top steel cladding panel is divided into regions. The area of ​​the first section 101 is B×L1, and the area of ​​the second section 102 is B×L2, where L2 is much smaller than L1. m×L1+n×L2=L, where m is the number of first sections 101 and n is the number of second sections 102. In this invention, only the second section 102 is the area for post-applied steel cladding. Compared with the post-applied steel cladding construction method in related technologies, this greatly reduces the amount of on-site work such as on-site welding and weld inspection, formwork erection and dismantling, and rebar tying, while effectively controlling the deformation of the steel cladding.

[0086] The large steel-clad modular structure provided in this embodiment consists of a top steel-clad module 10, a bottom steel-clad module 20, and side wall steel-clad modules 30 connected together to form an integral structure. The entire process is prefabricated in the factory, thereby realizing the overall hoisting, installation, and pouring of the steel cladding of the room. This greatly reduces the construction cycle, ensures welding quality, and reduces labor input, effectively promoting the industrialization process of nuclear engineering. By dividing the top steel-clad module 10 into multiple first compartments 101 and multiple second compartments 102, grouting can be carried out simultaneously in multiple first compartments 101, so that the grout reaches all areas of the steel cladding at one time, avoiding the phenomenon of voids and incomplete compaction. This solves the problem of the difficulty of grouting large-volume steel-clad modules in one go. At the same time, by pouring concrete in the second compartments 102 and then attaching the top steel cladding panel, the amount of on-site work such as on-site welding and weld inspection, formwork erection and dismantling, and rebar tying is greatly reduced. This is conducive to improving on-site construction quality and efficiency, reducing labor input, and shortening the construction cycle.

[0087] In some embodiments, see Figure 1 As shown, the steel-clad roof module 10 includes:

[0088] The top steel cladding panel body 11 is first attached to the first partition 101. The width of the top steel cladding panel body 11 along the X direction is L1 and the length along the Y direction is B. The top steel cladding panel body 11 is first attached to the first partition 101 and is prefabricated in the factory.

[0089] The partition stiffening ribs 14 are arranged along the Y direction on the steel cladding module 10 on the top of the plate. Multiple partition stiffening ribs 14 are spaced apart along the X direction on the steel cladding module 10 on the top of the plate. The partition stiffening ribs 14 are suitable for dividing the steel cladding module 10 on the top of the plate into multiple first partitions 101 and multiple second partitions 102. The first partitions 101 and the second partitions 102 are arranged alternately.

[0090] Among them, the distance between each pair of adjacent opposite stiffening ribs 14 along the X direction on the steel cladding module 10 on the top of the plate is L1; the distance between each pair of adjacent opposite stiffening ribs 14 along the X direction on the steel cladding module 10 on the top of the plate is L2.

[0091] It should be noted that if the distance between any two adjacent second compartments 102 is too large, it can easily lead to a deterioration in the pouring quality. Therefore, the distance between any two adjacent second compartments 102 is within the range of 0-3m, thus meeting the requirement for one-time accessibility of the grouting material in the first compartment 101 and ensuring the pouring quality. The dimensions of each second compartment 102 only need to meet the space requirements for grouting operations.

[0092] In this embodiment, since the area of ​​the second partition 102 is much smaller than that of the first partition 101, by first attaching the top steel cladding panel body 11 within the first partition 101, the amount of on-site work such as on-site welding and weld inspection of the steel cladding, formwork erection and dismantling, and rebar tying is greatly reduced. At the same time, the deformation of the steel cladding can be effectively controlled, which is conducive to improving the quality and efficiency of on-site construction. The partition stiffening ribs 14 are arranged only along a single Y direction. The partition stiffening ribs 14 are used to separate the first partition 101 and the second partition 102, while providing grouting holes for the first partition 101 and providing a support platform for welding the top steel cladding panel after attaching it to the second partition 102.

[0093] In some embodiments, please combine Figure 1 and Figure 2 As shown, multiple grouting holes 103 are provided on the partition stiffening rib 14. The grouting holes 103 are connected to the first partition 101. The size and number of grouting holes 103 can be determined according to the on-site grouting needs.

[0094] In this embodiment, by opening multiple grouting holes 103 on the partition stiffening rib 14, grouting can be simultaneously and quickly injected into multiple first partitions 101 through the grouting holes 103. On the one hand, the grout can reach all areas of the steel cladding at one time, avoiding the phenomenon of voids and looseness, and solving the problem of the difficulty of one-time grouting of large-volume steel cladding modules. On the other hand, it can improve on-site construction efficiency and shorten the construction cycle.

[0095] In some embodiments, please combine Figure 1 and Figure 2 As shown, the steel cladding module 10 on the top of the slab also includes:

[0096] The top main stiffening rib 12 is set along the entire length L of the steel-clad module 10 on the top of the plate;

[0097] The top secondary stiffening rib 13 is provided along the entire length L1 of the first partition 101;

[0098] The secondary stiffener 13 and the primary stiffener 12 are alternately arranged along the Y direction. The secondary stiffener 13 and the primary stiffener 12 are adapted to divide the first partition 101 into multiple grouting paths 104, and the size of each grouting path 104 is B1×L1.

[0099] It should be noted that, please refer to Figure 1 As shown, the first section 101 is mainly composed of a top steel cladding panel body 11, a top main stiffening rib 12, a top secondary stiffening rib 13, and a section stiffening rib 14. The top main stiffening rib 12 and the top secondary stiffening rib 13 are only arranged along a single X direction. The top secondary stiffening rib 13 and the top main stiffening rib 12 divide the first section 101 into K grouting paths 104. The size of each grouting path 104 is B1×L1, where K×B1=B, thereby ensuring the flowability of the grouting path and the quality of the pouring.

[0100] Furthermore, the stiffening ribs of the first partition 101 are provided with steel cladding, while the stiffening ribs of the second partition 102 are not provided with steel cladding.

[0101] In this embodiment, by setting a top main stiffening rib 12 and a top secondary stiffening rib 13 on the steel cladding module 10 on the top of the plate, the needs of deformation and stress during hoisting and pouring are met; the top secondary stiffening rib 13 and the top main stiffening rib 12 divide the first partition 101 into multiple grouting paths 104, and grouting can be carried out simultaneously along each grouting path 104 during on-site construction, thereby improving work efficiency through synchronous grouting; the top main stiffening rib 12 and the top secondary stiffening rib 13 are set only along a single X direction, thereby ensuring the flow of grout material and ensuring the quality of pouring.

[0102] In some embodiments, see Figure 2As shown, both the top main stiffening rib 12 and the top secondary stiffening rib 13 are provided with connecting holes 105, which are connected to the first partition 101.

[0103] In this embodiment, by opening connecting holes 105 on the top main stiffening rib 12 and the top secondary stiffening rib 13, the grouting and pouring balance and venting requirements of the first partition 101 are met.

[0104] In some embodiments, please combine Figure 1 and Figure 2 As shown, the top steel cladding module 10 also includes a rear-attached top steel cladding panel 15, which is attached to the second partition 102. The width of the rear-attached top steel cladding panel 15 along the X direction is L2, and the length along the Y direction is B, wherein L2 is much smaller than L1.

[0105] It should be noted that, please refer to Figure 1 As shown, the second partition 102 is mainly composed of partition stiffening ribs 14, rear-attached top steel cladding panels 15, and part of the top main stiffening ribs 12 (located within the second partition 102).

[0106] In this embodiment, the area of ​​the second partition 102 is much smaller than the area of ​​the first partition 101. During the factory prefabrication process, the first partition 101 is first attached to the top steel cladding panel body 11. By simultaneously grouting in multiple first partitions 101, the grout can reach all areas of the steel cladding at one time, solving the problem that large-volume steel cladding modules cannot be grouted at one time. At the same time, during the on-site construction process, the top steel cladding panel 15 is only set in the second partition 102, which greatly reduces the amount of on-site work such as on-site welding and weld inspection, formwork erection and dismantling, and rebar tying, which is conducive to improving the quality and efficiency of on-site construction.

[0107] In some embodiments, please combine Figure 3 and Figure 4 As shown, the bottom steel cladding module 20 includes:

[0108] Bottom steel cladding panel body 21;

[0109] The bottom main stiffening rib 22 is set along the X and Y directions on the bottom steel cladding panel body 21;

[0110] The bottom secondary stiffening rib 23 is alternately arranged with the bottom main stiffening rib 22 along the X and Y directions on the bottom steel cladding panel body 21. The bottom secondary stiffening rib 23 and the bottom main stiffening rib 22 are suitable for dividing the bottom steel cladding panel body 21 into multiple sections.

[0111] In this embodiment, the bottom main stiffening rib 22 and the bottom secondary stiffening rib 23 are arranged bidirectionally on the bottom steel cladding panel body 21 to divide the bottom steel cladding panel body 21 into multiple sections, thereby meeting the needs of hoisting and casting deformation and stress.

[0112] In some embodiments, please combine Figure 3 , Figure 7 and Figure 14 As shown, the large steel-clad modular structure also includes a temporary support module 40, which includes multiple temporary columns 41. One end of each temporary column 41 is connected to the top main stiffening rib 12, and the other end is connected to the bottom main stiffening rib 22.

[0113] It should be noted that the spacing and cross-sectional dimensions of the temporary columns 41 can be obtained through mechanical stress calculations; the temporary columns 41 can be removed after the wall and floor slab are poured.

[0114] In this embodiment, a temporary support module 40 is set between the bottom steel cladding module 20 and the top steel cladding module 10 to support the bottom steel cladding module 20 and the top steel cladding module 10. One end of each temporary column 41 of the temporary support module 40 is connected to the bottom main stiffening rib 22 of the bottom steel cladding module 20, and the other end is connected to the top main stiffening rib 12 of the top steel cladding module 10, thereby ensuring the stability and safety of the overall hoisting. After the wall and floor slab are poured, the temporary columns 41 can be removed.

[0115] In some embodiments, please combine Figure 5 and Figure 6 As shown, the sidewall steel cladding module 30 includes:

[0116] The side steel cladding panel body 31 has a construction passage hole 301 on it;

[0117] Side stiffening ribs 32 are vertically arranged in pairs on the side steel cladding panel body 31. The side stiffening ribs 32 are suitable for dividing the side steel cladding panel body 31 into multiple sections and for supporting and shaping the construction passage hole 301.

[0118] The rear-mounted side steel cover panel 33 is suitable for sealing the construction access hole 301.

[0119] In this embodiment, side stiffening ribs 32 are provided on the side steel cladding panel body 31 to meet the needs of hoisting and pouring deformation and stress; construction passage holes 301 are provided on the side wall steel cladding module 30 to facilitate personnel passage and material transportation. After the basic construction is completed, the back-attached side steel cladding panel 33 is installed, and the wall concrete at the transportation hole position is poured.

[0120] It should be noted that the large steel-clad modular structure of the present invention is not only applicable to large steel-clad structures in nuclear engineering, but also to the construction of general small steel-clad modular structures. In the above embodiments, the top main stiffening rib 12, top secondary stiffening rib 13, partition stiffening rib 14, bottom main stiffening rib 22, bottom secondary stiffening rib 23, side stiffening rib 32, temporary column 41, and other stiffening ribs can have cross-sectional forms such as I-beams, angle steel, channel steel, or other cross-sections.

[0121] According to an embodiment of the present invention, in another aspect, a construction method for a large steel-clad modular structure as described above is also provided, comprising:

[0122] Please see Figure 13 As shown, the concrete construction of the lower-level room walls and the floor slab of this floor should be carried out in conjunction with the above. Figure 14 and Figure 15 As shown, the floor slab is provided with a grouting layer thickness H, and the wall reinforcement is provided with mechanical joints; the factory completes the overall processing of the large steel-clad modular structure, hoisting it to the top of the lower floor slab and securing it reliably with tooling; the construction of the lower room walls and the concrete of this floor slab does not conflict with the processing of the large steel-clad modular structure in the factory and can be carried out simultaneously.

[0123] Please combine them together Figure 16 and Figure 17 As shown, at the location of the stiffening rib 14 of the steel-clad module 10 on the top of the plate, the grouting material 131 is simultaneously injected into multiple first sections 101 through the grouting hole 103 along the grouting path 104 until each first section 101 is grouted and compacted, so as to solve the difficult problem that it is impossible to grout a large volume steel-clad module in one go.

[0124] Concrete is poured into the second section 102 of the steel cladding module 10 on the top of the slab, and then the steel cladding panel 15 is attached to complete the steel cladding construction of this floor slab.

[0125] Please see Figure 18 As shown, the connecting wall reinforcement cage 141 is mechanically connected to the reinforcement of the next floor wall. Formwork is erected on the non-steel-clad side of the wall. A support system is installed for the steel-clad rooms. Please refer to [link / reference]. Figure 19 As shown, then pour the wall concrete 151, while leaving the concrete at the construction passage 301 position for the final pour.

[0126] Please see Figure 20 As shown, the upper floor slab reinforcement cage 161 is connected. Please refer to [link / reference]. Figure 21 As shown, pour concrete 171 for the upper floor slab to complete the construction of the upper floor slab;

[0127] Please see Figure 22As shown, the temporary columns 41 and the support system of the steel-clad room are removed, the materials are transported out through the construction access hole 301, the back-attached side steel cladding panel 33 is then installed, and finally the wall concrete at the location of the construction access hole 301 is poured to complete the entire pouring work of the steel-clad room.

[0128] It should be noted that, in order to prevent the steel cladding from deforming during the concrete pouring process, the large steel cladding module structure cannot be directly used as the concrete pouring support structure. A certain number of additional support systems need to be set up. For example, hooks can be set on the back ribs of the steel cladding module of the wall to reinforce the wooden formwork on the side of the wall without steel cladding.

[0129] The construction method for large steel-clad modular structures provided by this invention enables the overall hoisting, installation, and pouring of the steel cladding in a room. It solves the problem of the difficulty of achieving one-time grouting for large-volume steel-clad modules, greatly reduces the amount of on-site work such as on-site welding and weld inspection, formwork erection and dismantling, and rebar tying. This helps to improve the quality and efficiency of on-site construction, greatly optimizes the modular construction of walls and floors, reduces on-site rebar work, and accelerates the construction process.

[0130] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A large steel-faced modular structure, characterised in that, include: Steel-clad module at the bottom of the plate (20); A side wall steel cladding module (30) is fixedly connected to the bottom plate steel cladding module (20) on one side along the height direction, and a plurality of the side wall steel cladding modules (30) are arranged circumferentially around the side edge of the bottom plate steel cladding module (20); The top steel cladding module (10) is fixedly installed on the side of the side wall steel cladding module (30) away from the bottom steel cladding module (20) along the height direction. The top steel cladding module (10) is adapted to be connected with the bottom steel cladding module (20) and multiple side wall steel cladding modules (30) to form an integral large steel cladding module structure. The steel-clad panel module (10) on the top of the plate is provided with a plurality of first partitions (101) and a plurality of second partitions (102). The first partition (101) is a grouting area, and the second partition (102) is a post-applied steel-clad panel area. The area of ​​the second partition (102) is much smaller than the area of ​​the first partition (101). The steel-clad panel module (10) on the top of the panel includes: The top steel cladding panel body (11) is first attached to the first partition (101). The top steel cladding panel body (11) has a width of L1 along the X direction and a length of B along the Y direction. A partition stiffening rib (14) is disposed on the steel cladding module (10) on the top of the plate along the Y direction. A plurality of partition stiffening ribs (14) are disposed at intervals along the X direction on the steel cladding module (10) on the top of the plate. The partition stiffening ribs (14) are adapted to divide the steel cladding module (10) on the top of the plate into a plurality of first partitions (101) and a plurality of second partitions (102). The first partitions (101) and the second partitions (102) are arranged alternately. Wherein, the distance between each two adjacent opposing partition stiffening ribs (14) along the X direction on the steel cladding module (10) on the top of the plate is L1; the distance between each two adjacent opposing partition stiffening ribs (14) along the X direction on the steel cladding module (10) on the top of the plate is L2; The reinforcing rib (14) of the partition is provided with a grouting hole (103), which is connected to the first partition (101).

2. The large steel cladded modular structure as claimed in claim 1, wherein, The steel-clad panel module (10) on the top of the plate also includes: The top main stiffening rib (12) is provided along the entire length L of the steel cladding module (10) on the top of the plate; The top secondary stiffening rib (13) is provided along the entire length L1 of the first partition (101); The top secondary stiffening rib (13) and the top main stiffening rib (12) are alternately arranged along the Y direction. The top secondary stiffening rib (13) and the top main stiffening rib (12) are adapted to divide the first partition (101) into multiple grouting paths (104). The size of each grouting path (104) is B1×L1.

3. The large steel-clad modular structure according to claim 2, characterized in that, Both the top main stiffening rib (12) and the top secondary stiffening rib (13) are provided with connecting holes (105), and the connecting holes (105) are connected to the first partition (101).

4. The large steel-clad modular structure according to any one of claims 1-3, characterized in that, The top steel cladding module (10) also includes a rear-attached top steel cladding panel (15), which is attached to the second partition (102). The width of the rear-attached top steel cladding panel (15) along the X direction is L2, and the length along the Y direction is B.

5. The large steel-clad modular structure according to claim 2, characterized in that, The bottom steel cladding module (20) includes: Bottom steel cladding panel body (21); Bottom main stiffening ribs (22) are provided on the bottom steel cladding panel body (21) along the X and Y directions; The bottom secondary stiffening rib (23) is alternately arranged with the bottom main stiffening rib (22) along the X and Y directions on the bottom steel cladding panel body (21). The bottom secondary stiffening rib (23) and the bottom main stiffening rib (22) are adapted to divide the bottom steel cladding panel body (21) into multiple sections.

6. The large steel-clad modular structure according to claim 5, characterized in that, The large steel-clad module structure also includes a temporary support module (40), which includes multiple temporary columns (41). One end of each temporary column (41) is connected to the top main stiffening rib (12), and the other end is connected to the bottom main stiffening rib (22).

7. The large steel-clad modular structure according to any one of claims 1-3 or 5-6, characterized in that, The sidewall steel cladding module (30) includes: The side steel cladding panel body (31) has a construction passage hole (301) on it. Side stiffening ribs (32) are vertically arranged in pairs on the side steel cladding panel body (31). The side stiffening ribs (32) are adapted to divide the side steel cladding panel body (31) into multiple sections and to support and shape the construction passage hole (301). The rear-mounted side steel cladding panel (33) is suitable for sealing the construction access hole (301).

8. A construction method for a large steel-clad modular structure as described in any one of claims 1 to 7, characterized in that, include: Concrete construction of the walls of the lower room and the floor slab of this floor, with a grouting layer thickness H left in the floor slab, and mechanical joints left for the wall reinforcement bars to extend out; The factory completed the overall processing of the large steel-clad modular structure, hoisted it to the top of the lower floor slab, and reliably fixed it with tooling. At the location of the stiffening rib (14) of the steel-clad module (10) on the top of the plate, the first section (101) is grouted through the grouting hole (103) along the grouting path (104) until the first section (101) is grouted and compacted; Concrete is poured into the second section (102) of the steel cladding module (10) on the top of the slab, and then the steel cladding panel (15) is attached to complete the steel cladding construction of this floor slab. Connect the wall reinforcement cage and mechanically connect it to the wall reinforcement of the next layer. Set up the formwork on the non-steel cladding side of the wall. Set up the support system in the steel cladding room. Then pour the wall concrete and leave the concrete at the construction passage hole (301) position for the final pour. Connect the upper floor slab reinforcement cage, pour the upper floor slab concrete, and complete the upper floor slab construction; Remove the temporary columns (41) and the support system of the steel-clad room, transport the materials out through the construction access hole (301), then attach the back side steel cladding panel (33), and finally pour the wall concrete at the location of the construction access hole (301) to complete the entire pouring work of the steel-clad room.

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