Bottom layer connecting structure and staggered stacked steel structure module thereof

Abstract

The utility model relates to a bottom layer connecting structure and a staggered stacking steel structure module thereof. The bottom layer connecting structure comprises a module, a bottom frame and a bottom connecting piece. The modules are cuboid frames, and opposite edges, orthogonal to the splicing direction, of the bottoms of the modules are provided with strip-shaped notches facing back to back. The bottom frame is a horizontally-oriented rectangular frame. The module and the bottom frame have at least the same length. The modules and the bottom frame are staggered in the splicing direction, and strip-shaped notches in the bottoms of the modules can be connected with one side of the bottom frame in a matched mode. The modules and the bottom frame are connected to the concrete foundation through bottom connecting pieces pre-buried in the concrete foundation. The staggered stacked steel structure module has the advantages that the horizontal connecting position and the vertical connecting position of the adjacent spaces of the staggered stacked steel structure module share the same column and beam as much as possible, so that the material consumption of the module and the occupied space of the column and the beam are reduced, and the usable building area is increased.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, and in particular to a bottom connection structure and its staggered stacked steel structure modules. Background Technology

[0002] Modular integrated buildings are leading a new trend in industrialized construction, evolving towards diversified structural systems, enhanced integration, and standardized products. (See also...) Figure 1 In conventional prefabricated buildings, multiple frame structure modules 1' are stacked and aligned from bottom to top. Horizontally adjacent modules 1' are stacked side by side with a certain spacing, and horizontal connections between adjacent modules are achieved through bottom connecting plates. In this method of vertical alignment and horizontal stacking of modules 1', the two vertical columns of horizontally adjacent modules 1' abut against each other, and the two horizontal beams of vertically adjacent modules 1' abut against each other. This results in a double-column, double-beam problem at the connection points in the prefabricated building, which increases the amount of module material used by 20%-40% compared to conventional prefabricated buildings. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a bottom connection structure and its staggered stacked steel structure module, which solves the technical problem of double columns and double beams at the connection points in prefabricated buildings formed by conventional module stacking methods, which leads to waste of module materials.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] In a first aspect, this utility model provides a bottom connection structure, including a module, a bottom frame, and a bottom connector;

[0008] The module is a cuboid frame, and the bottom of the module has opposite edges that are orthogonal to the splicing direction with strip-shaped notches facing away from each other.

[0009] The base frame is a horizontally oriented rectangular frame; the module and the base frame have at least the same length;

[0010] The module and the base frame are staggered along the splicing direction, and the strip-shaped notch at the bottom of the module can be connected to one side of the base frame;

[0011] The module and the bottom frame are connected to the concrete foundation via bottom connectors embedded in the concrete foundation.

[0012] According to this utility model, the bottom connector includes a bottom end plate;

[0013] The main body of the bottom end plate is embedded in the concrete foundation, and two vertically extending upper shear keys are fixed to the top of the main body of the end plate.

[0014] The module can be fitted with an upper anti-shear key and connected to each other by vertically oriented screws;

[0015] The bottom frame can be fitted with another upper shear key, and the module, the bottom frame, and the other upper shear key can be connected to each other by inserting vertically oriented screws.

[0016] According to this utility model, two through holes are provided on the end plate body;

[0017] The two upper shear keys are vertically connected and correspond one-to-one with the two through holes. The bottom of the upper shear keys is coaxial and fixedly connected to the bottom nut.

[0018] One end of the screw is threaded to the bottom nut, and the other end extends out of the module and is threaded into the sleeve.

[0019] According to this utility model, the bottom connector further includes a vertically extending anchor bolt, the lower part of which is embedded in the concrete foundation, and the upper part of which is connected to the end plate body.

[0020] The bottom of the end plate body is also fixed with a vertically extending lower shear key, which is embedded in the concrete foundation.

[0021] According to this utility model, the module includes an upper beam frame, a lower beam frame, and a connecting column connecting the top corners of the upper and lower beam frames;

[0022] The vertical projection of the outer side of the upper beam frame falls into the upper interior of the connecting column, and the vertical projection of the outer side of the lower beam frame falls into the lower interior of the connecting column.

[0023] The upper and lower ends of the connecting column form strip-shaped notches orthogonal to the splicing direction with the outer sides of the upper beam and the lower beam, respectively, so that the top and bottom of the module are provided with two strip-shaped notches facing opposite directions.

[0024] According to this utility model, column head corner pieces are provided at the four corners of the upper beam frame, and column foot corner pieces are provided at the four corners of the lower beam frame;

[0025] The two ends of the connecting column are respectively connected to the corresponding column head corner piece and column foot corner piece of the upper beam frame and the lower beam frame;

[0026] The upper shear key, the connecting column, the column head corner piece connecting the upper and lower ends of the connecting column, and the column foot corner piece form a first through channel that runs vertically through the column, for inserting the screw.

[0027] The screw inserted into the first through-channel has one end threaded to the bottom nut and the other end extending out of the head corner piece and threaded to the sleeve.

[0028] According to this utility model, the lower beam frame further includes modular longitudinal beams and modular transverse beams, wherein the modular longitudinal beams and the modular transverse beams are arranged to intersect each other and are connected at the intersection by the column base corner pieces;

[0029] The upper and lower ends of the connecting column are respectively fixed to the bottom of the column head corner piece and the top of the column foot corner piece. The connecting column is a cylindrical body that runs through the top and bottom. The top and bottom of the column head corner piece and the column foot corner piece are provided with connecting holes that connect to the connecting column.

[0030] According to this utility model, corner pieces are provided at all four corners of the bottom frame;

[0031] The upper shear key, the bottom frame corner piece, the connecting column, the column head corner piece connecting the upper and lower ends of the connecting column, and the column foot corner piece, which are fitted onto the bottom frame corner piece, form a second through channel that runs vertically through the bottom.

[0032] The screw inserted into the second through-channel has one end threaded to the bottom nut and the other end extending out of the head corner piece and threaded to the sleeve.

[0033] According to this utility model, the top of the bottom frame corner piece is provided with an annular connecting platform, the annular connecting platform is connected to the inner cavity of the bottom frame corner piece, and the annular connecting platform can be inserted into the connecting hole at the top of the column foot corner piece and extend into the connecting column.

[0034] Secondly, this utility model also provides an interlaced stacked steel structure module, including the bottom connecting structure, wherein the top of the module and the opposite edges orthogonal to the splicing direction are provided with the strip-shaped notches facing opposite directions;

[0035] The strip-shaped notch at the top of the module can be connected to the strip-shaped notch at the bottom of another module, so that at least one upper-layer connecting structure is stacked on top of the bottom-layer connecting structure to form the staggered stacked steel structure module.

[0036] (III) Beneficial Effects

[0037] The beneficial effects of this utility model are as follows: The bottom connection structure provided by this utility model has modules and bottom frames arranged alternately along the splicing direction. The two sides of the bottom frame are embedded with strip-shaped notches to connect the bottom of adjacent modules, so that the horizontal connection points of adjacent spaces in the bottom connection structure all share a column. This avoids the double column problem caused by the conventional horizontal parallel arrangement of modules, thereby effectively reducing the amount of module material used, the space occupied by columns and beams, and helping to increase the usable building area.

[0038] In the upper connection structure of the staggered stacked steel structure modules provided by this utility model: the strip-shaped notch at the bottom of the module can be embedded to match the strip-shaped notch at the top of the module below, so that the upper and lower connection points of adjacent spaces of the staggered stacked steel structure modules can share a single beam as much as possible, thereby reducing the number of double beams generated at the connection points in the conventional method of stacking modules up and down, and making the modules in the upper connection structure spaced apart along the splicing direction, so that the horizontal connection points of adjacent spaces in the upper connection structure can all share a single column.

[0039] This staggered stacked steel structure module reduces the amount of material used in the module and the space occupied by columns and beams by sharing a single column and beam at the horizontal and vertical connections between adjacent spaces of the staggered stacked steel structure modules as much as possible, thereby helping to increase the usable building area. Attached Figure Description

[0040] Figure 1 This is a main illustration of the stacking method of prefabricated buildings in existing technologies;

[0041] Figure 2 This is a three-dimensional schematic diagram of the underlying connection structure proposed in this utility model;

[0042] Figure 3 for Figure 2 A schematic diagram of the decomposition process;

[0043] Figure 4 This is a three-dimensional schematic diagram of the staggered stacked steel structure module proposed in this utility model;

[0044] Figure 5 for Figure 4 A schematic diagram of the decomposition process;

[0045] Figure 6 This is an assembly diagram of the module, bottom frame, bottom connectors, and concrete foundation.

[0046] Figure 7 This is a schematic diagram of the assembly of the bottom connector and the concrete foundation;

[0047] Figure 8 for Figure 7 A schematic diagram of the decomposition process;

[0048] Figure 9This is a sectional view of the bottom connector;

[0049] Figure 10 A cross-sectional view of the bottom connector from another perspective;

[0050] Figure 11 This is a 3D schematic diagram of the base frame;

[0051] Figure 12 This is a schematic diagram of the assembly of the bottom frame, bottom connectors, and concrete foundation.

[0052] Figure 13 for Figure 12 BB-direction sectional view;

[0053] Figure 14 This is a 3D schematic diagram of the module;

[0054] Figure 15 for Figure 6 CC-direction sectional view.

[0055] [Explanation of Labels in the Attached Image]

[0056] 1: Module; 10: Column head corner fitting; 11: Connecting column; 12: Module longitudinal beam; 13: Module transverse beam; 14: Column base corner fitting;

[0057] 2: Base frame; 20: Base frame corner piece; 21: Base frame longitudinal beam; 22: Base frame transverse beam;

[0058] 3: Bottom connector; 31: Bottom end plate; 310: End plate body; 311: Upper shear key; 312: Bottom nut; 313: Lower shear key; 314: Sealing box; 32: Anchor bolt; 33: Anchor bolt nut;

[0059] 4: Concrete foundation;

[0060] 5: Screw;

[0061] 6: Sleeve;

[0062] Q: Gap. Detailed Implementation

[0063] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper" and "lower" are used interchangeably with... Figure 2 The orientation is used as a reference, and the vertical direction is used as the reference. Figure 4 The direction indicated by arrow D in the image is "horizontal". Figure 4 The direction indicated by arrow E in the diagram.

[0064] Example 1

[0065] See Figure 1-14The present invention provides a bottom connection structure, including a module 1, a bottom frame 2 and a bottom connector 3.

[0066] Module 1 is a cuboid frame. The bottom edges of Module 1, orthogonal to the splicing direction, have opposing strip notches Q facing away from each other. The bottom frame 2 is a horizontally oriented rectangular frame. Module 1 and bottom frame 2 have at least the same length. Module 1 and bottom frame 2 are staggered along the splicing direction, and the strip notches Q at the bottom of Module 1 can mate to connect to one side of bottom frame 2. Module 1 and bottom frame 2 are connected to the concrete foundation 4 via bottom connectors 3 embedded in the concrete foundation 4.

[0067] In this bottom connection structure, module 1 and bottom frame 2 are staggered along the splicing direction. The two sides of bottom frame 2 are embedded to connect the strip notches Q at the bottom of adjacent modules 1, so that the horizontal connection points of adjacent spaces in the bottom connection structure share a column. This avoids the double column problem that occurs at the connection point when modules 1 are arranged horizontally side by side in the conventional way. This effectively reduces the amount of module material used, the space occupied by columns and beams, and helps to increase the usable building area.

[0068] See Figure 7-10 Furthermore, the bottom connector 3 includes a bottom end plate 31.

[0069] The end plate body 310 of the bottom end plate 31 is embedded in the concrete foundation 4, and two vertically extending upper shear keys 311 are fixed to the top of the end plate body 310.

[0070] Module 1 can be fitted with an upper shear key 311 and connected to each other by inserting vertically oriented screws 5. The bottom frame 2 can be fitted with another upper shear key 311, and module 1, bottom frame 2 and the other upper shear key 311 can be connected to each other by inserting vertically oriented screws 5.

[0071] A shear key 311 is fitted onto both module 1 and bottom frame 2 to effectively resist horizontal shear forces. Vertically oriented bolts 5 ensure that bottom frame 2 is effectively vertically connected to the bottom end plate 31. Simultaneously, bolts 5 also provide a stable connection between module 1 and bottom frame 2.

[0072] Therefore, the above connection method enables an effective connection between module 1, bottom frame 2, bottom connector 3, and concrete foundation 4, effectively resisting horizontal shear forces and vertical pull-out forces, ensuring the structure is firmly attached to the concrete foundation 4. Furthermore, this connection method eliminates the need for on-site welding; except for the concrete foundation 4, other components can be prefabricated in the factory and transported to the site for welding-free installation, aligning with the trend of green building development.

[0073] Specifically, two through holes are provided on the end plate body 310.

[0074] Two upper shear keys 311 are connected vertically and correspond one-to-one with two through holes. The bottom of the upper shear key 311 is coaxial and fixedly connected to the bottom nut 312.

[0075] One end of the screw 5 can extend out of the upper shear key 311 and be threaded onto the bottom nut 312, while the other end extends out of the module 1 and is threaded onto the sleeve 6. This allows for the connection of both ends of the screw 5, ensuring that the module 1 and the bottom frame 2 are effectively vertically connected to the bottom end plate 31. It also enables detachable connections between the module 1 and the bottom connector 3, as well as between the module 1, the bottom frame 2, and the bottom connector 3, making it easy to construct and disassemble.

[0076] Optionally, the bottom nut 312 is welded to the upper shear key 311.

[0077] Specifically, the bottom of the end plate body 310 is also fixed with two corresponding sealing boxes 314 that accommodate two bottom nuts 312.

[0078] The sealing box 314 is used to protect the bottom nut 312 and prevent it from being submerged when pouring concrete foundation 4, which would affect subsequent construction.

[0079] Furthermore, a vertically extending lower shear key 313 is fixed to the bottom of the end plate body 310. The lower shear key 313 is embedded in the concrete foundation 4 to further improve the resistance to the horizontal shear force borne by the module 1 and the bottom frame 2.

[0080] Furthermore, the bottom connector 3 also includes a vertically extending anchor bolt 32.

[0081] The lower part of the anchor bolt 32 is embedded in the concrete foundation 4, and the upper part of the anchor bolt is connected to the end plate body 310 to stably fix the bottom end plate 31 in the concrete foundation 4.

[0082] Specifically, the upper part of the anchor bolt 32 passes through the end plate body 310 and is tightened and fixed to the end plate body 310 by the anchor bolt nut 33.

[0083] During construction, after the anchor bolt 32 passes through the end plate body 310, the lower part of the anchor bolt 32, the end plate body 310, and the lower shear key 313 on the end plate body 310 are embedded in the concrete foundation 4. Then, the anchor bolt nut 33 is tightened until the anchor bolt 32 passes through the upper part of the end plate body 310, so that the bottom end plate 31 is fixed to the concrete foundation 4.

[0084] Optionally, the upper shear key 311, the lower shear key 313, and the sealing box 314 are all welded to the end plate body 310.

[0085] See Figure 14Furthermore, module 1 includes an upper beam frame, a lower beam frame, and a connecting column 11 connecting the upper and lower beam frames.

[0086] The vertical projection of the outermost side of the upper beam frame falls onto the inner upper end of the connecting column 11. The vertical projection of the outermost side of the lower beam frame falls onto the inner lower end of the connecting column 11. The upper and lower ends of the connecting column 11 form strip-shaped notches Q orthogonal to the splicing direction with the outermost sides of the upper and lower beam frames, respectively, so that the two opposite edges at the top and bottom of module 1, orthogonal to the splicing direction, are provided with strip-shaped notches Q facing opposite directions. It should be noted that, see [link to relevant documentation] Figure 14 D indicates the outside, and E indicates the inside.

[0087] During assembly, the bottom frame 2 is used to connect horizontally adjacent modules 1 by embedding the strip notch 2, or the strip notches Q on the two modules 1 are used to embed and connect the vertically adjacent modules 1. This reduces or even avoids the number of beams and columns that abut against each other at the connection of adjacent modules 1, and reduces or even avoids the situation of double columns and double beams at the connection of the staggered stacked steel structure modules. This effectively reduces the amount of material used in module 1, the space occupied by columns and beams, and helps to increase the usable building area.

[0088] Specifically, the upper beam frame is a rectangular frame, the lower beam frame is a rectangular frame, and the upper and lower beam frames are arranged in parallel to each other to cooperate with the connecting column 11 to form a cuboid module 1.

[0089] Furthermore, column head corner fittings 10 are provided at the four corners of the upper beam frame. Column foot corner fittings 14 are provided at the four corners of the lower beam frame. The two ends of the connecting column 11 are respectively connected to the corresponding column head corner fittings 10 and column foot corner fittings 14 of the upper and lower beam frames.

[0090] Specifically, the column base corner piece 14 of module 1 can be fitted with an anti-shear key 311.

[0091] The upper shear key 311, connecting column 11, column head corner piece 10 connecting the upper and lower ends of the connecting column 11 and column foot corner piece 14 form a first through channel that runs vertically through the column, for inserting the screw 5.

[0092] The screw 5, inserted into the first through-channel, has one end threaded to the bottom nut 312 and the other end extending out of the head corner piece 10 and threaded into the sleeve 6, so as to resist the vertical pull-out force of the module 1 through the screw 5.

[0093] See Figure 11 Furthermore, corner pieces 20 are provided at all four corners of the base frame 2. The corner pieces 20 can be fitted with another upper shear key 311.

[0094] The upper shear key 311, the bottom frame corner piece 20, the connecting column 11, the column head corner piece 10 connecting the upper and lower ends of the connecting column 11, and the column foot corner piece 14 form a second through channel that runs vertically through the bottom frame.

[0095] The screw 5, inserted into the second through-channel, has one end threaded to the bottom nut 312 and the other end extending out of the column head corner piece 10 and threaded into the sleeve 6, so that the screw 5 can resist the vertical pull-out force of the bottom frame 2 and connect the bottom frame 2 and the module 1.

[0096] Specifically, the bottom frame corner piece 20 is continuous from top to bottom, and the bottom of the bottom frame corner piece 20 can be fitted onto another upper shear key 311.

[0097] Preferably, an annular connecting platform is provided on the top of the bottom frame corner piece 20. The annular connecting platform communicates with the inner cavity of the bottom frame corner piece 20. The annular connecting platform can be inserted into the connecting hole on the top of the column foot corner piece 14 and extend into the connecting column 11 to further improve the connection stability between the module 1 and the bottom frame 2.

[0098] Specifically, the bottom frame 2 also includes bottom frame longitudinal beams 21 and bottom frame transverse beams 22.

[0099] The bottom frame longitudinal beam 21 and bottom frame transverse beam 22 are arranged in a rectangular shape with their intersections and are fixedly connected by bottom frame corner pieces 20.

[0100] Furthermore, the lower beam frame also includes modular longitudinal beams 12 and modular transverse beams 13, which are arranged in a horizontal and vertical manner and connected at the intersection by column base corner pieces 14.

[0101] Specifically, the upper and lower ends of the connecting column 11 are fixed to the bottom of the column head corner piece 10 and the top of the column foot corner piece 14, respectively. The connecting column 11 is a cylindrical body that runs through the top and bottom. The top and bottom of the column head corner piece 10 and the column foot corner piece 14 are provided with connecting holes that connect to the connecting column 11, so that an anti-shear key 311 can be fitted onto the bottom of the column foot corner piece 14, and a first through channel and a second through channel can be formed.

[0102] Furthermore, there are multiple screws 5 inserted in both the first and second through channels, with the multiple screws 5 arranged vertically at intervals and adjacent screws 5 threadedly connected to both ends of the sleeve 6.

[0103] During assembly, first, fit an upper shear key 311 onto the bottom frame corner piece 20 of the bottom frame 2, and then insert the screw 5 into the bottom frame corner piece 20 and the upper shear key 311 in sequence. One end of the screw 5 is threaded to the bottom nut 312, and the other end extends out of the bottom frame corner piece 20 and is threaded to one end of the sleeve 6. At the same time, insert the screw 5 into another upper shear key 311. One end of the screw 5 is threaded to the bottom nut 312, and the other end extends out of the other upper shear key 311 and is threaded to one end of the sleeve 6.

[0104] Subsequently, the strip-shaped notch Q at the bottom of module 1 is inserted into one side of the base frame 2, so that the column base corner piece 14 of module 1 is fitted with another upper shear key 311, and the base frame corner piece 20 is accommodated between one side and the top of the column base corner piece 14 to form a first through channel and a second through channel. Screws 5 are inserted into the first through channel and the second through channel respectively. One end of the screw 5 is threaded to the other end of the lower sleeve 6, and the other end extends out of the column head corner piece 10 and is threaded to one end of the sleeve.

[0105] Optionally, all components in module 1 and base frame 2 are welded together.

[0106] Example 2

[0107] Based on Embodiment 1, this utility model embodiment also proposes an interleaved stacked steel structure module, including the bottom connection structure of Embodiment 1.

[0108] The top of module 1 has opposite edges orthogonal to the splicing direction with strip-shaped notches Q facing away from each other.

[0109] The strip notch Q at the top of module 1 can be connected to the strip notch Q at the bottom of another module 1, so that at least one upper layer of connecting structure is stacked on top of the lower layer connecting structure, forming an interleaved stacked steel structure module.

[0110] In the upper connection structure: the strip notch Q at the bottom of module 1 can be embedded to match the strip notch Q at the top of the lower module 1, so that the upper and lower connections of adjacent spaces of the staggered stacked steel structure modules can share a beam as much as possible, thereby reducing the number of double beams generated at the connection in the conventional method of stacking modules 1 vertically, and making the modules 1 in the upper connection structure spaced apart along the splicing direction, so that the horizontal connections of adjacent spaces in the upper connection structure can all share a column.

[0111] This staggered stacked steel structure module reduces the material usage of module 1 and the space occupied by columns and beams by sharing a single column and beam at the horizontal and vertical connections between adjacent spaces of the staggered stacked steel structure modules as much as possible, thereby helping to increase the usable building area.

[0112] It should be noted that the number of beams or columns is not directly proportional to the support strength, but the strength is positively correlated with the cross-sectional properties of the beams or columns. Therefore, although each space in this staggered stacked steel structure module basically shares one beam and one column at the vertical and horizontal connections, as long as the cross-sectional area of ​​the beams and columns is large enough, the support strength can be guaranteed to meet the requirements.

[0113] Furthermore, the upper beam frame also includes modular longitudinal beams 12 and modular transverse beams 13. The modular longitudinal beams 12 and modular transverse beams 13 are arranged in a cross-sectional and cross-sectional manner, and the intersection is connected by column base corner pieces 14.

[0114] Furthermore, vertically oriented screws 5 are inserted between modules 1 in adjacent connecting structures to connect them.

[0115] Specifically, the connecting column 11 of module 1 in the upper connection structure, as well as the column head corner piece 10 and column foot corner piece 14 connecting the two ends of the connecting column 11, form a third through channel through which a screw rod 5 can be inserted.

[0116] The connection method between the bottom connection structure and the upper connection structure is as follows: the strip notch Q at the top of the module 1 of the bottom connection structure is inserted into the strip notch Q at the bottom of the module 1 of the upper connection structure. The screw 5 inserted in the third through channel has one end threaded to the other end of the sleeve threaded to the screw 5 extending out of the column head corner piece 10 of the bottom connection structure. The other end extends out of the column head corner piece 10 of the upper connection structure and is threaded to the sleeve 6.

[0117] The connection method of the adjacent upper-level connection structure is as follows: the screw 5 inserted in the third through-channel of the upper-level connection structure has one end threaded to the other end of the sleeve threaded to the screw 5 in the third through-channel of the lower-level connection structure, and the other end extends out of the column head corner piece 10 of the upper-level connection structure and is threaded to the sleeve 6.

[0118] This allows for convenient detachable connections between adjacent floors, facilitating both construction and disassembly. Furthermore, this connection method eliminates the need for on-site welding; except for the concrete foundation 4, other components are prefabricated in the factory and transported to the site for welding-free installation, aligning with the trend of green building development.

[0119] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0120] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0121] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0122] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A bottom-level connection structure, characterized in that, It includes a module (1), a bottom frame (2), and a bottom connector (3); The module (1) is a cuboid frame, and the bottom of the module (1) and the opposite edges orthogonal to the splicing direction are provided with strip-shaped notches (Q) facing away from each other; The base frame (2) is a horizontally oriented rectangular frame; the module (1) and the base frame (2) have at least the same length; The module (1) and the bottom frame (2) are staggered along the splicing direction, and the strip notch (Q) at the bottom of the module (1) can be connected to one side of the bottom frame (2); The module (1) and the bottom frame (2) are connected to the concrete foundation (4) by a bottom connector (3) embedded in the concrete foundation (4).

2. The underlying connection structure as described in claim 1, characterized in that, The bottom connector (3) includes a bottom end plate (31); The end plate body (310) of the bottom end plate (31) is embedded in the concrete foundation (4), and two vertically extending upper shear keys (311) are fixed to the top of the end plate body (310). The module (1) can be fitted with an upper anti-shear key (311) and connected to each other by inserting vertically oriented screws (5); The bottom frame (2) can be fitted with another upper anti-shear key (311), and the module (1), the bottom frame (2) and the other upper anti-shear key (311) can be connected to each other by inserting the vertically oriented screw (5).

3. The underlying connection structure as described in claim 2, characterized in that, Two through holes are provided on the end plate body (310); The two upper shear keys (311) are vertically connected and correspond one-to-one with the two through holes. The bottom of the upper shear key (311) is coaxial and fixedly connected to the bottom nut (312). One end of the screw (5) is threaded to the bottom nut (312), and the other end extends out of the module (1) and is threaded into the sleeve (6).

4. The underlying connection structure as described in claim 3, characterized in that, The bottom connector (3) also includes a vertically extending anchor bolt (32), the lower part of which is embedded in the concrete foundation (4), and the upper part of which is connected to the end plate body (310). The bottom of the end plate body (310) is also fixed with a vertically extending lower shear key (313), which is embedded in the concrete foundation (4).

5. The underlying connection structure as described in claim 3, characterized in that, The module includes an upper beam frame, a lower beam frame, and a connecting column (11) connecting the top corners of the upper and lower beam frames; The vertical projection of the outer side of the upper beam frame falls into the upper interior of the connecting column (11), and the vertical projection of the outer side of the lower beam frame falls into the lower interior of the connecting column (11). The upper and lower ends of the connecting column (11) form strip-shaped notches (Q) that are orthogonal to the splicing direction with the outer sides of the upper beam frame and the lower beam frame, so that the top and bottom of the module (1) are provided with two strip-shaped notches (Q) facing opposite directions.

6. The underlying connection structure as described in claim 5, characterized in that, The upper beam frame is provided with column head corner pieces (10) at its four corners, and the lower beam frame is provided with column foot corner pieces (14) at its four corners; The two ends of the connecting column (11) are respectively connected to the corresponding column head corner piece (10) and column foot corner piece (14) of the upper beam frame and the lower beam frame; The upper shear key (311) fitted onto the column base corner piece (14), the connecting column (11), the column head corner piece (10) connecting the upper and lower ends of the connecting column (11), and the column base corner piece (14) form a first through channel that runs vertically through the column base corner piece (14) for inserting the screw (5). The screw (5) inserted into the first through-channel has one end threaded to the bottom nut (312) and the other end extends out of the head corner piece (10) and is threaded to the sleeve (6).

7. The underlying connection structure as described in claim 6, characterized in that, The lower beam frame also includes modular longitudinal beams (12) and modular transverse beams (13), which are arranged in a horizontal and vertical manner and are connected at the intersection by the column base corner piece (14). The upper and lower ends of the connecting column (11) are respectively fixed to the bottom of the column head corner piece (10) and the top of the column foot corner piece (14). The connecting column (11) is a cylindrical body that runs through the top and bottom. The top and bottom of the column head corner piece (10) and the column foot corner piece (14) are respectively provided with connecting holes that connect to the connecting column (11).

8. The underlying connection structure as described in claim 6, characterized in that, The bottom frame (2) is provided with corner pieces (20) at all four corners; The upper shear key (311) fitted onto the bottom frame corner piece (20), the bottom frame corner piece (20), the connecting column (11), the column head corner piece (10) connecting the upper and lower ends of the connecting column (11), and the column foot corner piece (14) form a second through channel that runs vertically through the bottom. The screw (5) inserted into the second through-channel has one end threaded to the bottom nut (312) and the other end extending out of the head corner piece (10) and threaded to the sleeve (6).

9. The underlying connection structure as described in claim 8, characterized in that, The top of the bottom frame corner piece (20) is provided with an annular connecting platform, which is connected to the inner cavity of the bottom frame corner piece (20). The annular connecting platform can be inserted into the connecting hole at the top of the column foot corner piece (14) and extend into the connecting column (11).

10. A staggered stacked steel structure module, comprising the bottom connection structure as described in any one of claims 1-9, characterized in that, The top of the module (1) has opposite edges orthogonal to the splicing direction with the strip-shaped notch (Q) facing away from each other; The strip notch (Q) at the top of the module (1) can be connected to the strip notch (Q) at the bottom of another module (1) to stack at least one upper layer connection structure above the bottom connection structure and form the staggered stacked steel structure module.

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