Module position difference adjusting device for connecting column and transport beam and use method thereof

Abstract

A modular elevation difference adjustment device and its usage method for connecting columns and transport beams belong to the field of modular construction technology for LNG (liquefied natural gas) receiving terminals. It includes a transport beam, modular columns, a foundation, a device fixing system, an elevation difference adjustment mechanism, and a retractable transport beam fastening mechanism. The device fixing system is fixedly connected to the bottom of the modular column; the elevation difference adjustment mechanism is located below the device fixing system and supported on the top surface of the foundation; the retractable transport beam fastening mechanism is connected to the device fixing system and is used to clamp the transport beam to achieve a non-destructive connection between the transport beam and the modular column. This invention solves the problems of low elevation difference adjustment accuracy and easy damage to the column in existing LNG module steel column placement methods, as well as the problems of reduced load-bearing capacity, difficult disassembly, and non-reusability caused by drilling or welding on the steel column for transport beam connection. It not only ensures that the elevation difference of the bottom surface of the steel column does not exceed a threshold during module placement, but also solves the problem of structural damage caused by traditional bolted or welded connections between the transport beam and the main module structure.

Description

Technical Field

[0001] This invention relates to a module positioning height difference adjustment device and its usage method for connecting columns and transport beams, belonging to the field of modular construction technology for LNG (liquefied natural gas) receiving terminals. Background Technology

[0002] In the construction of large-scale LNG receiving terminals, on-site construction is challenging and quality is difficult to guarantee. Modular construction has become a research hotspot and has been applied in some practical projects. Modular construction of LNG receiving terminals involves prefabricating the steel frame and installing process equipment in a factory, then transporting it to the site for assembly. Through standardized design and industrialized production, modular construction of receiving terminals can achieve a balance between economic benefits, construction quality and efficiency, and resource conservation, representing an important development direction for the efficient construction of LNG receiving terminals.

[0003] LNG receiving terminal modules consist of steel columns, beams, and piping equipment. The transport beams, serving as temporary load-bearing components during transportation and placement, must be reliably connected to the module's steel columns to transfer the module's weight to the transport vehicle. Meanwhile, when the module is placed onto the foundation, height differences often occur between the bottom surfaces of the steel columns due to unevenness of the foundation surface or external forces such as wind loads. Large LNG modules can weigh tens of thousands of tons, and the foundation may settle during construction. Failure to precisely adjust the height differences between the steel column bottom surfaces will cause the module to tilt, affecting structural safety and subsequent pipeline connections.

[0004] Existing methods for adjusting the elevation difference of steel columns mostly rely on shim sets or on-site cutting and trimming of the column base plates. Shim sets have low adjustment accuracy and poor stacking stability, and require the preparation of shims of various specifications, consuming a lot of resources; on-site cutting damages the steel column itself, destroys the anti-corrosion layer, and causes stress concentration. A few solutions combine nut adjustment and shim adjustment, but these still cannot meet the high-precision and high-efficiency adjustment requirements of large LNG modules.

[0005] Regarding the connection between transport beams and steel columns, traditional methods typically involve on-site welding or fixing with bolts after drilling holes in the flanges and webs of the steel columns. This method not only weakens the cross-section of the steel columns and reduces their load-bearing capacity, but also makes disassembly difficult, cannot adapt to transport beams of different cross-sectional dimensions, and the connectors are difficult to reuse. In recent years, some patents have attempted to solve the problem of reduced load-bearing capacity caused by drilling holes in the support columns when connecting transport beams, proposing modular connection devices that do not damage the support column body. However, such devices only solve the connection problem and fail to simultaneously achieve precise adjustment of the height difference of the steel column placement.

[0006] In summary, there is an urgent need to develop an integrated device that can both adjust the height difference of the steel column placement and achieve a non-destructive, detachable connection between the transport beam and the steel column, so as to meet the requirements of LNG modular installation for high efficiency, reliability and reusability. Summary of the Invention

[0007] The purpose of this invention is to solve the problems of low accuracy in adjusting the elevation difference of existing LNG module steel columns, which easily damages the columns; and the need for drilling or welding in the steel columns to connect transport beams, which reduces load-bearing capacity, makes disassembly difficult, and prevents reuse. A brief overview of the invention is provided below to offer a basic understanding of certain aspects of it. It should be understood that this overview is not an exhaustive summary of the invention. It is not intended to identify key or essential parts of the invention, nor is it intended to limit the scope of the invention.

[0008] The technical solution of this invention:

[0009] Option 1: A module positioning height difference adjustment device for connecting columns and transport beams, comprising a transport beam, a module column, a foundation, a device fixing system, a height difference adjustment mechanism, and a retractable transport beam fastening mechanism. The device fixing system is fixedly connected to the bottom of the module column; the height difference adjustment mechanism is located below the device fixing system and supported on the top surface of the foundation; the retractable transport beam fastening mechanism is connected to the device fixing system and is used to clamp the transport beam to achieve a non-destructive connection between the transport beam and the module column.

[0010] The device fixing system includes a column base perforated end plate, a connecting plate, connecting anchor bolts, and a bearing plate; the height adjustment mechanism includes a perforated steel base plate and a lifting component mounted on the perforated steel base plate; the connecting plate is fixedly connected to the flange of the module column, the bearing plate is fixedly connected to the connecting plate, the column base perforated end plate is fixedly connected to the bottom of the module column, one end of the connecting anchor bolt is connected to the bearing plate, and the other end passes through the column base perforated end plate and the perforated steel base plate in sequence, and extends to below the perforated steel base plate before being locked with a lock nut; the lifting component is located between the column base perforated end plate and the perforated steel base plate, and the elevation of the column base perforated end plate relative to the perforated steel base plate is adjusted by the extension and retraction of the lifting component and the locking of the nut.

[0011] Preferably, the gusset plate is welded to the flange edges on both sides of the module column, and a stiffening rib is provided between the bearing plate and the column bottom opening end plate. The diameter of the anchor bolt hole on the column bottom opening end plate is 1mm to 2mm larger than the diameter of the connecting anchor bolt.

[0012] Preferably, the height adjustment mechanism further includes a support anchor bolt, which is arranged through the edge of the column bottom opening end plate and the opening steel base plate, and the bottom end of the support anchor bolt is provided with a pad. The support anchor bolt is used to support the top surface of the foundation after the module is placed to act as an anti-instability support leg.

[0013] Preferably, the lifting assembly includes a jack and a limiting nut. The jack is positioned between the perforated end plate at the bottom of the column and the perforated steel base plate. The limiting nut is fitted onto the support anchor bolt and is located between the perforated end plate at the bottom of the column and the perforated steel base plate to limit the upward range of the perforated steel base plate.

[0014] Preferably, the telescopic transport beam fastening mechanism includes an upper clamping plate, a lower clamping plate, and a long connecting anchor bolt. The upper clamping plate and the lower clamping plate are located above and below the flange of the transport beam, respectively. The long connecting anchor bolt passes through the upper clamping plate and the lower clamping plate, and a clamping space for accommodating the flange of the transport beam is formed between the upper clamping plate and the lower clamping plate. The vertical spacing of the clamping space is adjusted by screwing on the nut on the long connecting anchor bolt.

[0015] Preferably, the upper clamping plate of the telescopic transport beam fastening mechanism is connected to the column bottom opening end plate through a long connecting anchor bolt, and the lower clamping plate is located below the flange of the transport beam. The upper clamping plate and the lower clamping plate are clamped to the flange of the transport beam by rotating the nut on the long connecting anchor bolt.

[0016] Option 2, a method for using a module positioning height difference adjustment device for connecting columns and transport beams, is based on the aforementioned module positioning height difference adjustment device for connecting columns and transport beams, and includes the following steps:

[0017] S1: Fix the device fixing system to the bottom of the module column, and install the height difference adjustment mechanism below the device fixing system so that the perforated steel base plate is supported on the top surface of the foundation;

[0018] S2: Place the transport beam in the clamping space of the telescopic transport beam fastening mechanism, adjust the vertical spacing of the clamping space, so that the telescopic transport beam fastening mechanism clamps the flange of the transport beam, thereby achieving a non-destructive connection between the transport beam and the module column.

[0019] S3: During the transportation and placement of the module, when it is necessary to raise the elevation of the column base, lift the jack and tighten the lock nut; when it is necessary to lower the elevation of the column base, lower the jack and tighten the lock nut to adjust the height difference at the bottom of the module column.

[0020] S4: After the module is positioned at the design elevation, release the clamping mechanism of the telescopic transport beam from the transport beam, and dismantle and recycle the elevation adjustment mechanism and the telescopic transport beam clamping mechanism.

[0021] Preferably, in step S4, after removing the recovery height adjustment mechanism and the telescopic transport beam fastening mechanism, the support anchor bolts are retained so that their lower end pads are supported on the top surface of the foundation, serving as legs to enhance the stability of the module.

[0022] Preferably, in step S1, the device fixing system, the height difference adjustment mechanism, and the telescopic transport beam fastening mechanism are all prefabricated in the factory and assembled on site using anchor bolts, with no welding work on site.

[0023] Preferably, in step S4, before dismantling, auxiliary jacks are used to support the perimeter of the column bottom opening plate, and then the jacks, the opening steel base plate, the connecting anchor bolts, and the telescopic transport beam fastening mechanism are removed.

[0024] The present invention has the following beneficial effects:

[0025] 1. This invention uses a device fixing system and a height adjustment mechanism, employing a combination of jack extension and locking nut to adjust the bottom elevation of the steel column. This replaces the traditional method of using shims and on-site cutting and trimming. It offers high adjustment accuracy, simple operation, and does not damage the steel column itself. It enables precise and non-destructive adjustment of the module's placement height, ensuring the structural safety of the module and the reliability of subsequent pipeline connections.

[0026] 2. This invention, by setting up a telescopic transport beam fastening mechanism, uses upper and lower clamping plates to clamp the flange of the transport beam, and adjusts the clamping distance by rotating the nut on the long connecting anchor bolt. It can adapt to transport beams with different cross-sectional dimensions, and does not require drilling or welding on the steel column, thus avoiding the weakening of the steel column cross-section and the damage to the anti-corrosion layer, achieving a non-destructive connection and rapid disassembly between the transport beam and the steel column.

[0027] 3. This invention integrates the steel column placement height difference adjustment function with the transport beam connection function into a single device. The device fixing system, height difference adjustment mechanism and transport beam fastening mechanism are all connected by detachable anchor bolts, eliminating the need for on-site welding. This enables rapid assembly and overall disassembly and recycling, and the connecting parts can be reused, significantly improving the efficiency and economic benefits of LNG modular construction and reducing construction costs.

[0028] 4. By setting up support anchors and pads at their bottom ends, the support anchors can act as anti-instability outriggers on the top surface of the foundation after the module is in place. When uneven settlement occurs in the foundation, secondary leveling can be performed by adjusting the jacks and locking nuts. At the same time, the pads can prevent the module from overturning due to horizontal displacement of the foundation, effectively enhancing the stability and safety of the module during placement and installation. Attached Figure Description

[0029] Figure 1 This is a three-dimensional diagram of a module positioning height difference adjustment device that connects columns and transport beams;

[0030] Figure 2 This is a 3D view of the module placement height difference adjustment device;

[0031] Figure 3 This is the front view of the module placement height difference adjustment device;

[0032] Figure 4 This is a side view of the module placement height difference adjustment device;

[0033] Figure 5 This is a top view of the module placement height difference adjustment device;

[0034] Figure 6 This is the installation diagram for the module placement height difference adjustment device;

[0035] Figure 7 This is a diagram showing the usage status of the module placement height difference adjustment device.

[0036] In the diagram: 1-Module positioning height adjustment device, 2-Transport beam, 3-Module crossbeam, 4-Module column, 5-Column bottom perforated end plate, 6-Perforated steel base plate, 7-Connecting anchor bolt, 8-Supporting anchor bolt, 9-Draping plate, 10-Bearing plate, 11-Jack, 12-Upper clamping plate, 13-Lower clamping plate, 14-Stiffening rib, 15-Limiting nut, 16-Base, 17-Pan plate, 18-Locking nut, 19-Long connecting anchor bolt. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0038] Example 1

[0039] like Figure 1-7 As shown in the figure, this embodiment of a module positioning height difference adjustment device for connecting columns and transport beams includes a device fixing system, a height difference adjustment mechanism, and a telescopic transport beam fastening mechanism. The cooperation of each component enables non-destructive and precise adjustment of the LNG module steel column positioning height difference, while achieving a detachable and non-damaging connection between the transport beam and the steel column. The specific structural settings of each mechanism and system are as follows.

[0040] This embodiment of a module positioning height difference adjustment device for connecting columns and transport beams includes a transport beam 2, module columns 4, a foundation 16, a device fixing system, a height difference adjustment mechanism, and a retractable transport beam fastening mechanism. The number of module columns 4 is at least two, arranged symmetrically from left to right, and adjacent module columns 4 are fixedly connected by module crossbeams 3. The device fixing system is fixedly connected to the bottom of the module columns 4; the height difference adjustment mechanism is located below the device fixing system and supported on the top surface of the foundation 16; the retractable transport beam fastening mechanism is connected to the device fixing system and is used to clamp the transport beam 2 to achieve a non-destructive connection between the transport beam 2 and the module columns 4. All of the above components together constitute the module positioning height difference adjustment device 1.

[0041] As attached Figures 3-5As shown, the device fixing system includes a column base perforated end plate 5, a connecting plate 9, a connecting anchor bolt 7, and a pressure plate 10. The connecting plate 9 is fixedly connected to the flange of the module column 4, the pressure plate 10 is fixedly connected to the connecting plate 9, and the column base perforated end plate 5 is fixedly connected to the bottom of the module column 4. One end of the connecting anchor bolt 7 is connected to the pressure plate 10, and the other end passes through the column base perforated end plate 5 and the perforated steel base plate 6 of the height adjustment mechanism in sequence, and extends below the perforated steel base plate 6 before being locked with a locking nut 18. The lifting assembly is disposed between the column base perforated end plate 5 and the perforated steel base plate 6; the elevation of the column base perforated end plate 5 relative to the perforated steel base plate 6 is adjusted by the extension and retraction of the lifting assembly and the locking of the locking nut 18.

[0042] More specifically, the gusset plate 9 is welded to the flange edges on both sides of the module column 4 and is arranged close to the bottom perforated end plate 5 along the column height direction. The gusset plate 9 and the bottom bearing plate 10 can be welded to the bottom perforated end plate 5 at the factory, or they can be close to or in contact with the end plate. The gusset plate 9 and the bearing plate 10 form a stiffening structure to prevent buckling deformation of the bottom perforated end plate 5 and the bottom steel column. One end of the connecting anchor bolt 7 is connected to the bearing plate 10, and the other end is connected to the perforated steel bottom plate 6. The bearing plate 10 and the number of its perforations are determined according to the weight of the module.

[0043] The dimensions of the column base perforated end plate 5 must meet the anchoring requirements of the connecting anchor bolt 7 and the supporting anchor bolt 8, and the end plate dimensions must be larger than the perforated steel base plate 6 to facilitate the lifting of the end plate by the jack 11 and the disassembly of the perforated steel base plate 6 and the anchor bolts. The diameter of the anchor bolt hole on the column base perforated end plate 5 is 1mm to 2mm larger than the diameter of the connecting anchor bolt 7, and stiffening ribs 14 are also provided on the column base perforated end plate 5 to prevent local buckling deformation.

[0044] The height adjustment mechanism includes a perforated steel base plate 6 and a lifting assembly mounted on the perforated steel base plate 6. The height adjustment mechanism also includes a support anchor bolt 8, which is arranged through the edges of the perforated end plate 5 at the bottom of the column and the perforated steel base plate 6. The bottom end of the support anchor bolt 8 is provided with a pad plate 17. The support anchor bolt 8 is used to support the top surface of the foundation 16 after the module is placed in place, serving as an anti-instability support leg.

[0045] The perforated steel base plate 6 has several through holes for the support anchors 8 and connecting anchors 7 to pass through. The support anchors 8 are arranged along the edges of the perforated steel base plate 6 and the perforated end plate 5 at the bottom of the column, and their bottom ends are provided with pads 17, the bearing area of ​​which is larger than the cross-sectional area of ​​the support anchors 8. After the module is in place, if uneven settlement occurs in the foundation, the extension and retraction of the corresponding column base device jacks 11 and the nuts of the connecting anchors 7 on the bottom surface of the perforated steel base plate 6 can be adjusted to adjust the bottom elevation of the module steel column 4. The support anchors 8 can also act as anti-instability support legs to prevent the module from overturning due to horizontal displacement of the foundation.

[0046] The lifting assembly includes a jack 11 and a limiting nut 15. The jack 11 is positioned between the column base perforated end plate 5 and the perforated steel base plate 6. The limiting nut 15 is fitted onto the support anchor bolt 8 and is located between the column base perforated end plate 5 and the perforated steel base plate 6 to limit the upward range of the perforated steel base plate 6.

[0047] Specifically, the limiting nut 15 is used to limit the excessive rise of the base plate 6 after it contacts the foundation. The distance between the bottom surface of the limiting nut 15 and the top surface of the perforated steel base plate 6 does not exceed half of the module's height difference limit. If a height difference occurs during module placement, the base plate elevation is adjusted by rotating the anchor bolt nuts on the bottom surface of the perforated steel base plate 6 and the lifting jacks 11 to ensure the LNG receiving terminal module is not tilted. The model and quantity of the jacks 11 are determined based on the weight of the device and the weight of the LNG module.

[0048] The retractable transport beam fastening mechanism includes an upper clamping plate 12, a lower clamping plate 13, and a long connecting anchor bolt 19. The upper clamping plate 12 and the lower clamping plate 13 are located above and below the flange of the transport beam 2, respectively. The long connecting anchor bolt 19 passes through the upper clamping plate 12 and the lower clamping plate 13, forming a clamping space between the upper clamping plate 12 and the lower clamping plate 13 to accommodate the flange of the transport beam 2. The vertical spacing of the clamping space is adjusted by tightening the nut on the long connecting anchor bolt 19.

[0049] Both the upper clamping plate 12 and the lower clamping plate 13 are perforated rectangular steel plates. Long connecting anchor bolts 19 pass sequentially through the upper clamping plate 12 and the lower clamping plate 13, as well as nuts positioned above and below the steel plates. The limiting nuts ensure that the distance between the upper clamping plate 12 and the lower clamping plate 13 is greater than the cross-sectional height of the transport beam. By rotating the nuts above and below the upper clamping plate 12 and the nuts below the lower clamping plate 13, the net distance between the upper clamping plate 12 and the lower clamping plate 13 is adjusted, thereby clamping the flange of the transport beam 2 to accommodate transport beams of different cross-sectional dimensions. Furthermore, the upper clamping plate 12 of the telescopic transport beam fastening mechanism is connected to the perforated end plate 5 at the bottom of the column via long connecting anchor bolts 19, and the lower clamping plate 13 is located below the flange of the transport beam 2. By rotating the nuts on the long connecting anchor bolts 19, the upper clamping plate 12 and the lower clamping plate 13 clamp the flange of the transport beam 2.

[0050] In this embodiment, the perforated steel base plate 6, upper clamping plate 12, lower clamping plate 13, and each anchor bolt are all prefabricated components in the factory. The LNG receiving terminal module, the elevation adjustment mechanism, and the transport beam fastening mechanism are all detachably connected by anchor bolts, eliminating the need for on-site welding and enabling rapid assembly and overall disassembly and recycling.

[0051] Once the LNG module is positioned at the design elevation, other jacks can be used to temporarily support it around the perforated end plate 5 at the bottom of the column. The jacks 11, the perforated steel base plate 6, the anchor bolts, the transport beam fastening mechanism, and the transport beam 2 in the elevation adjustment mechanism can be removed and recycled. Alternatively, the support anchor bolts 8 can be retained to further enhance the temporary or permanent stability of the module.

[0052] Example 2

[0053] This embodiment provides a method for using the module positioning height difference adjustment device for connecting columns and transport beams. This method is based on the module positioning height difference adjustment device for connecting columns and transport beams described in Embodiment 1. (See attached...) Figure 1-6 As shown, the method includes the following steps.

[0054] Step S1: Equipment prefabrication and installation;

[0055] Inside the factory, the device fixing system is fixedly connected to the bottom of the module column 4, and the height difference adjustment mechanism is installed below the device fixing system, so that the perforated steel base plate 6 is supported on the top surface of the foundation 16.

[0056] Specifically, the connecting plate 9 is welded to the two flange edges of the module column 4, and the pressure plate 10 is fixedly connected to the connecting plate 9. The column bottom opening end plate 5 is welded to the bottom of the module column 4. One end of the connecting anchor bolt 7 is connected to the pressure plate 10, and the other end passes through the column bottom opening end plate 5 and is connected to the opening steel base plate 6. All jacks extend to a uniform distance, and the nuts of the support anchor bolts 8 are tightened. The device fixing system, the height difference adjustment mechanism, and the telescopic transport beam fastening mechanism are all prefabricated in the factory and assembled on site using anchor bolts, without any welding work on site.

[0057] Step S2: Connect the transport beams;

[0058] The transport beam 2 is placed in the clamping space of the retractable transport beam fastening mechanism. The vertical spacing of the clamping space is adjusted so that the retractable transport beam fastening mechanism clamps the flange of the transport beam 2, thereby achieving a non-destructive connection between the transport beam 2 and the module column 4.

[0059] Specifically, long connecting anchor bolts 19 are used to connect the upper clamping plate 12 and the lower clamping plate 13 to the column base perforated end plate 5 and the perforated steel base plate 6. The nuts below the upper clamping plate 12 and the lower clamping plate 13 are rotated to adjust the distance between them. After the transport beam 2 is placed between the upper clamping plate 12 and the lower clamping plate 13, the nuts on the long connecting anchor bolts 19 are rotated to clamp the flanges of the transport beam 2 between the upper clamping plate 12 and the lower clamping plate 13. The upper clamping plate 12 is connected to the column base perforated end plate 5 and the height adjustment mechanism via the long connecting anchor bolts 19, thus achieving a non-destructive and detachable connection between the transport beam 2 and the modular column 4. This connection method eliminates the need for drilling or welding on the steel column 4, avoiding structural damage. The entire height adjustment device is prefabricated in the factory, ensuring processing accuracy.

[0060] Step S3: Elevation difference adjustment;

[0061] During the transportation and placement of the module, the height difference at the bottom of the module column 4 is adjusted by the extension and retraction of the lifting component and the locking engagement of the locking nut 18.

[0062] Specifically, the LNG modules are transported to the site using a self-propelled modular transporter (SPMT). When a height difference occurs during module placement:

[0063] When it is necessary to raise the column base elevation, loosen the locking nut 18 on the bottom surface of the perforated steel base plate 6 downwards, then raise the jack 11, and then tighten the locking nut 18. The specific operation is as follows: rotate the locking nut 18 of the connecting anchor bolt 7 on the bottom surface of the perforated steel base plate 6 downwards, raise the jack 11, and then tighten the locking nut 18.

[0064] When it is necessary to lower the column base elevation, loosen the locking nut 18 on the bottom surface of the perforated steel base plate 6 downwards, then lower the jack 11, and then tighten the locking nut 18. The specific operation is as follows: rotate the locking nut 18 of the connecting anchor bolt 7 on the bottom surface of the perforated steel base plate 6 downwards, lower the jack 11, and then tighten the locking nut 18 until the module is no longer tilted.

[0065] After the module is in place, if there is localized settlement of the foundation, rotate the connecting anchor bolt 7 and lock the nut 18 on the bottom surface of the perforated steel base plate 6 downwards, lift the jack 11, and then tighten the lock nut 18 until the module is no longer tilted. The limiting nut 15 is used to limit the base plate from rising too much after the perforated steel base plate 6 contacts the foundation. The distance between the bottom surface of the limiting nut 15 and the top surface of the perforated steel base plate 6 shall not exceed half of the height difference limit for module placement.

[0066] Step S4: Disassembly and recycling;

[0067] After the module is positioned at the design elevation, the clamping mechanism of the retractable transport beam is released from the transport beam 2, and the elevation adjustment mechanism and the retractable transport beam fastening mechanism are dismantled and recycled.

[0068] Specifically, after the LNG module is positioned at the design elevation and finally fixed, auxiliary jacks are first used to support the perimeter of the column base opening plate 5. Then, the jacks 11, the opening steel base plate 6, the connecting anchor bolts 7, the long connecting anchor bolts 19, and the upper clamping plate 12 and lower clamping plate 13 of the telescopic transport beam fastening mechanism are removed. Finally, the jacks are lowered back to position the module on the foundation.

[0069] After dismantling and recycling the height adjustment mechanism and the telescopic transport beam fastening mechanism, the supporting anchor bolts 8 can be retained, with their lower end pads 17 supporting the top surface of the foundation 16, serving as legs to enhance the stability of the module. Alternatively, all supporting anchor bolts 8 can be removed as needed on site. The entire dismantling process requires no welding or cutting, and all anchor bolt connections can be reversed, achieving efficient recycling of the device.

[0070] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be permuted and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutation and combination. Therefore, the present invention will not describe the technical solutions after permutation and combination one by one, but it should be understood that the technical solutions after permutation and combination have been disclosed by the present invention.

[0071] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A module positioning height difference adjustment device for connecting columns and transport beams, characterized in that: Includes a transport beam (2), a modular column (4), a foundation (16), a device fixing system, a height adjustment mechanism, and a telescopic transport beam fastening mechanism. The device fixing system is fixedly connected to the bottom of the modular column (4). The height adjustment mechanism is located below the device fixing system and supported on the top surface of the foundation (16). The telescopic transport beam fastening mechanism is connected to the device fixing system and is used to clamp the transport beam (2) to achieve a non-destructive connection between the transport beam (2) and the modular column (4). The device fixing system includes a column bottom opening end plate (5), a gusset plate (9), a connecting anchor bolt (7), and a pressure plate (10). The height adjustment mechanism includes a perforated steel base plate (6) and a lifting assembly disposed on the perforated steel base plate (6); The gusset plate (9) is fixedly connected to the flange of the module column (4), the pressure plate (10) is fixedly connected to the gusset plate (9), the bottom opening end plate (5) is fixedly connected to the bottom of the module column (4), one end of the connecting anchor bolt (7) is connected to the pressure plate (10), and the other end passes through the bottom opening end plate (5) and the opening steel base plate (6) in sequence, and extends to the bottom of the opening steel base plate (6) and is then locked with a locking nut (18). The lifting assembly is set between the bottom opening end plate (5) and the opening steel base plate (6). The elevation of the bottom opening end plate (5) relative to the opening steel base plate (6) is adjusted by the extension and retraction of the lifting assembly and the locking of the nut (18).

2. The module positioning height difference adjustment device for connecting columns and transport beams according to claim 1, characterized in that: The gusset plate (9) is welded to the flange edges on both sides of the module column (4). A stiffening rib (14) is provided between the pressure plate (10) and the bottom opening end plate (5). The diameter of the anchor bolt hole on the bottom opening end plate (5) is 1mm~2mm larger than the diameter of the connecting anchor bolt (7).

3. The module positioning height difference adjustment device for connecting columns and transport beams according to claim 2, characterized in that: The height adjustment mechanism also includes a support anchor (8), which is arranged through the edge of the column bottom opening end plate (5) and the opening steel base plate (6), and the bottom end of the support anchor (8) is provided with a pad (17). The support anchor (8) is used to support the top surface of the foundation (16) after the module is placed to act as an anti-instability support leg.

4. The module positioning height difference adjustment device for connecting columns and transport beams according to claim 3, characterized in that: The lifting assembly includes a jack (11) and a limiting nut (15). The jack (11) is positioned between the column bottom perforated end plate (5) and the perforated steel base plate (6). The limiting nut (15) is fitted onto the support anchor bolt (8) and is located between the column bottom perforated end plate (5) and the perforated steel base plate (6) to limit the upward range of the perforated steel base plate (6).

5. The module positioning height difference adjustment device for connecting columns and transport beams according to claim 4, characterized in that: The telescopic transport beam fastening mechanism includes an upper clamping plate (12), a lower clamping plate (13), and a long connecting anchor bolt (19). The upper clamping plate (12) and the lower clamping plate (13) are located above and below the flange of the transport beam (2), respectively. The long connecting anchor bolt (19) passes through the upper clamping plate (12) and the lower clamping plate (13). A clamping space for accommodating the flange of the transport beam (2) is formed between the upper clamping plate (12) and the lower clamping plate (13). The vertical spacing of the clamping space is adjusted by screwing the nut on the long connecting anchor bolt (19).

6. The module positioning height difference adjustment device for connecting columns and transport beams according to claim 5, characterized in that: The upper clamping plate (12) of the telescopic transport beam fastening mechanism is connected to the column bottom opening end plate (5) through the long connecting anchor bolt (19), and the lower clamping plate (13) is located below the flange of the transport beam (2). By rotating the nut on the long connecting anchor bolt (19), the upper clamping plate (12) and the lower clamping plate (13) clamp the flange of the transport beam (2).

7. A method of using a module positioning height difference adjustment device for connecting columns and transport beams, which is based on the module positioning height difference adjustment device for connecting columns and transport beams as described in claim 6, characterized in that, Includes the following steps: S1: Fix the device fixing system to the bottom of the module column (4), install the height difference adjustment mechanism below the device fixing system, so that the perforated steel base plate (6) is supported on the top surface of the foundation (16); S2: Place the transport beam (2) in the clamping space of the telescopic transport beam fastening mechanism, adjust the vertical spacing of the clamping space, so that the telescopic transport beam fastening mechanism clamps the flange of the transport beam (2), and realizes the non-destructive connection between the transport beam (2) and the module column (4). S3: During the transportation and placement of the module, when it is necessary to raise the column bottom elevation, lift the jack (11) and then tighten the locking nut (18); when it is necessary to lower the column bottom elevation, lower the jack (11) and then tighten the locking nut (18) to adjust the height difference at the bottom of the module column (4). S4: After the module is positioned at the design elevation, release the clamping mechanism of the telescopic transport beam on the transport beam (2), and dismantle and recycle the height adjustment mechanism and the telescopic transport beam clamping mechanism.

8. The method of using the module positioning height difference adjustment device for connecting columns and transport beams according to claim 7, characterized in that: In step S4, after removing the recovery height adjustment mechanism and the telescopic transport beam fastening mechanism, the support anchor bolt (8) is retained so that its lower end pad (17) is supported on the top surface of the foundation (16) as a support leg to enhance the stability of the module.

9. The method of using the module placement height difference adjustment device for connecting columns and transport beams according to claim 8, characterized in that: In step S1, the device fixing system, the height difference adjustment mechanism, and the telescopic transport beam fastening mechanism are all prefabricated in the factory and assembled on site using anchor bolts, with no welding work on site.

10. The method of using the module positioning height difference adjustment device for connecting columns and transport beams according to claim 9, characterized in that: In step S4, before dismantling, auxiliary jacks are first used to support the perimeter of the column bottom opening end plate (5), and then the jacks (11), the opening steel base plate (6), the connecting anchor bolts (7), and the telescopic transport beam fastening mechanism are removed.

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