Industrial combined structure based on main and auxiliary span reset connection

Abstract

The invention discloses an industrial combined structure based on main and auxiliary span reset connection. The industrial combined structure is composed of a main span part with steel reinforced concrete lattice type columns as frame columns and an auxiliary span part formed by combining module frames in a self-reset connection mode. In the self-resetting connection mode, two self-resetting devices are arranged, one self-resetting device is a linear type self-resetting device, the other self-resetting device is a cross type self-resetting device, and damping is formed through relative sliding of the machining steel plate and the machining connection plate. The auxiliary span part is formed by horizontally connecting and vertically connecting a plurality of module frames through connecting pieces, the integrity and rigidity of the auxiliary span part can be guaranteed to a certain degree, and therefore deformation of the main span part can be limited through the large rigidity of the auxiliary span part, and the modular combined structure industrial factory building with the main span and the auxiliary span connected in a self-reset mode is formed.

Description

Technical Field

[0001] This invention relates to the field of steel-concrete composite frame structure technology, specifically to an industrial composite structure based on the main and secondary span reset connection. Background Technology

[0002] Modular construction allows for simultaneous building and manufacturing, thus shortening overall construction time and reducing labor requirements. Precise factory control of the manufacturing process also enhances quality control, while mass production of components enables economies of scale, resulting in cost savings. Therefore, modular construction can be used to build office space in industrial plant buildings with secondary spans.

[0003] The corbel columns of a factory building need to withstand significant pressure. If steel columns are used, stiffening ribs are required to prevent instability; if concrete columns are used, the cross-sectional area needs to be increased. Therefore, steel-concrete lattice columns are used to fill the gaps. In industrial factory buildings with main and auxiliary spans, differences in span, height, and load often lead to abrupt changes in stiffness at the connection points. Under seismic loading, stress concentration easily occurs at these stiffness abrupt changes, increasing the risk of connection failure. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention aims to provide an industrial composite structure based on a main-span and secondary-span resetting connection. By manufacturing the modular frame structure in a factory and assembling the prefabricated modular frame on-site, the construction speed is greatly improved. The present invention also provides two types of connections between the modular frame structure (secondary span) and the industrial plant (main span): a linear self-resetting device and a cross-type self-resetting device. The linear self-resetting device uses an overhanging short beam and the self-resetting device to connect the modular structure of the secondary span to the industrial plant of the main span. The cross-type self-resetting device is directly connected to both the main and secondary spans.

[0005] The connection is made using a self-resetting device, which can adapt to different degrees of deformation during an earthquake while also providing a degree of self-resetting, thereby reducing the damage to the factory building caused by the earthquake.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] An industrial assembly structure based on a main and secondary span reset connection is formed by combining the main span part and the secondary span part through a self-resetting device. The self-resetting device can be of two types: a linear self-resetting device and a cross self-resetting device.

[0008] The linear self-resetting device includes a processing connecting plate and four processing steel plates. The sides of both ends of the processing connecting plate along its length are machined into a tooth shape, and one side of each processing steel plate is machined into a tooth shape. Each pair of processing steel plates clamps one end of the processing connecting plate, and the tooth structures of the two plates match and correspond. Through elliptical holes are opened at the tooth structure positions of the processing steel plates and the processing connecting plate. The major axis of the elliptical holes is along the length direction of the processing connecting plate. Ordinary bolts and disc springs are used to pass through the elliptical holes to connect the processing steel plates and the processing connecting plate. Among them, the two processing steel plates at one end of the processing connecting plate are fixedly connected to the short beam one of the main span, and the two processing steel plates at the other end are fixedly connected to the short beam two of the secondary span.

[0009] The cross-type self-resetting device includes a square frame and cross-bracing. The square frame is assembled from two T-shaped steel sections, a perforated steel plate, and a standard steel plate using four connecting plates. One side of the processed steel plate along its length is serrated, and one end of the processed connecting plate is also serrated. The processed steel plate and the processed connecting plate are connected at their serrated ends, with their serrated structures matching. Through-hole elliptical holes are formed at the serrated locations on both the processed steel plate and the processed connecting plate, with the major axis of the elliptical holes aligned with the length of the processed connecting plate. Standard bolts and disc springs are used to connect the processed steel plate and the processed connecting plate through these elliptical holes. The other end of the processed steel plate is welded to the standard steel plate to form a cross-bracing. The two cross-bracings are cross-welded to the two T-shaped steel sections within the square frame, thus forming the cross-type self-resetting device. The perforated steel plate is fixedly connected to the corbel column of the main span, and the standard steel plate is fixedly connected to the upper I-beam of the secondary span at its height.

[0010] In one embodiment, the corbel columns of the main span are steel-concrete lattice columns, and the secondary span is a modular frame structure assembled from modular frames via connectors; the steel-concrete lattice columns include vertically placed I-beams, with the top of the I-beams connected to upper I-beam columns; the modular frames are assembled from steel-concrete irregular-shaped columns and I-beam beams, and adjacent modular frames are connected using connectors;

[0011] When the self-resetting device is a linear self-resetting device, a short beam one is welded to the outer flange of the I-beam near the secondary span, and a short beam two is welded outward at the height of the upper beam on each module frame; the short beam one and the short beam two have the same height and are connected by a linear self-resetting device to realize the reset connection between the main and secondary spans.

[0012] In one embodiment, the steel-concrete lattice column further includes stiffening ribs, lacing members, connecting plates four, and concrete one; the stiffening ribs are disposed in the inner region of the two flanges of the I-beam, with their height located at the centerline where the lacing member connects to the I-beam. The connecting plates four are welded to the inner sides of the two flanges, the lacing members are connected between the connecting plates four of the two flanges, and the concrete one is disposed in the inner region of the two flanges of the I-beam (i.e., the inner region where the flange connects to the web).

[0013] In one embodiment, the steel-concrete composite column is composed of long-web I-beams, T-beams, end plates, and concrete slabs. The T-beams are parallel to and of equal length to the long-web I-beams, with their webs vertically welded to the webs of the long-web I-beams. The end plates are welded to both ends of the T-beams and the long-web I-beams. Concrete slabs are poured on one side of the webs of the T-beams and the long-web I-beams, flush with the flanges, with unpoured concrete portions reserved at both ends. In the unpoured concrete portions, corresponding bolt holes are provided in the webs of the long-web I-beams and the T-beams to connect the module frame via connectors. A square hole is provided at the lower end of the web of the long-web I-beams for easy equipment use during module frame installation. Bolt holes are provided on the end plates to facilitate the connection of the upper and lower steel-concrete composite columns.

[0014] In one embodiment, corresponding bolt holes are provided at both ends of the I-beam so that the I-beam can be connected to the steel-concrete composite column using a connecting plate to form a basic modular frame; wherein the connecting plate is connected to the steel-concrete composite column by welding and to the I-beam by bolts to form the modular frame.

[0015] In one embodiment, the connectors include I-beam connectors, steel plate connectors, and top and bottom layer connectors. The bolt holes on the flanges of the I-beam connectors correspond to the bolt holes on the flanges at both ends of the long web I-beams in the steel-concrete composite column, facilitating horizontal and vertical connections between the two intermediate layer module frames. The bolt holes on the steel plate connectors correspond to the bolt holes on both ends of the T-beams in the steel-concrete composite column, facilitating vertical connections between the two module frames. The bolt holes on the flanges of the top and bottom layer connectors correspond to the bolt holes on the flanges at both ends of the long web I-beams in the steel-concrete composite column, facilitating horizontal connections between the top and bottom layer module frames.

[0016] A construction method for an industrial composite structure based on a primary and secondary span reset connection, using a linear self-resetting device, includes the following steps:

[0017] S1, In the factory, short beams and stiffening ribs are welded to the corresponding positions of the I-beams, and formwork is erected, concrete is poured, and the formwork is removed and cured to form the column.

[0018] S2, In the factory, steel-concrete composite irregular columns are prepared and bolted to I-beams to obtain a modular frame;

[0019] S3, on site, the left and right module frames and the upper and lower module frames are connected by connectors. All connections are made using single-sided bolts. Once all module frames are connected, the sub-span section is completed.

[0020] S4, On-site, the column members are connected by fittings to form the lower column of the corbel column, and then the I-beam upper column of the corbel column is welded using the transition section between the upper and lower columns to form the main span;

[0021] S5, on site, short beam two is welded to the upper beam position of the modular frame;

[0022] S6, on site, connect the linear self-resetting device to short beam one and short beam two.

[0023] In S1, stiffening ribs are welded at the connecting column of the corresponding lacing member of the I-beam, and one end of a short beam is welded at the upper beam position of the corresponding module frame of the I-beam. The other end of the short beam has a bolt hole for connection with the self-resetting device.

[0024] In step S2, the long web I-beams and T-beams are welded together, formwork is erected, concrete is poured, and the formwork is removed and cured. Space is left at both ends along the length, and no concrete is poured in these areas. Bolt holes are made in the unconcrete web sections, and square holes are made at the lower ends of the webs of the long web I-beams. Two end plates with bolt holes are welded together to form a steel-concrete composite column. The steel-concrete composite column is then bolted to the I-beams using a connecting plate to form a modular frame. The connecting plate is welded to the column and bolted to the beam.

[0025] The S3 sub-span is formed by connecting the modular frame with I-beam connectors, steel plate connectors, and top and bottom layer connectors using single-sided bolts.

[0026] The S4 component is an angle steel piece, which is connected by a connecting plate (four). The connecting plate (four) is welded to the column leg to form the lower column.

[0027] In S5, one end of the short beam is welded to the module frame, and the other end has a bolt hole for connection with the linear self-resetting device.

[0028] In step S6, the connection between the processed steel plate and the intermediate processing connecting plate is toothed, and then an elliptical hole is opened at the processing point. The processed steel plate and the intermediate processing connecting plate are connected using ordinary bolts and disc springs. During the connection process, the disc spring is placed between the ordinary bolts and the processed steel plate and the intermediate processing connecting plate to form a linear self-resetting device. Then, the linear self-resetting device is connected to short beam one and short beam two by bolts.

[0029] A construction method for an industrial composite structure based on a primary and secondary cross-reset connection, using a cross-type self-reset device, includes the following steps:

[0030] S1, In the factory, stiffening ribs are added to the corresponding positions of the I-beams, and formwork is erected, concrete is poured, and the formwork is removed and cured to form the column limbs;

[0031] S2, In the factory, steel-concrete composite irregular columns are prepared and bolted to I-beams to obtain a modular frame;

[0032] S3, on site, the left and right module frames and the upper and lower module frames are connected by connectors. All connections are made using single-sided bolts. Once all module frames are connected, the sub-span section is completed.

[0033] S4, On-site, the column members are connected by fittings to form the lower column of the corbel column, and then the I-beam upper column of the corbel column is welded using the transition section between the upper and lower columns to form the main span;

[0034] S5, on site, the ordinary steel plate of the cross-type self-resetting device is welded to the upper beam position of the module frame;

[0035] S6, on site, connect the perforated steel plate on the other side of the cross-type self-resetting device to the bracket column.

[0036] S1 involves welding stiffening ribs at the corresponding connecting column of the I-beam.

[0037] In step S2, the long web I-beams and T-beams are welded together, formwork is erected, concrete is poured, and the formwork is removed and cured. Space is left at both ends along the length, and no concrete is poured in these areas. Bolt holes are made in the unconcrete web sections, and square holes are made at the lower ends of the webs of the long web I-beams. Two end plates with bolt holes are welded together to form a steel-concrete composite column. The steel-concrete composite column is then bolted to the I-beams using a connecting plate to form a modular frame. The connecting plate is welded to the column and bolted to the beam.

[0038] The S3 sub-span is formed by connecting the modular frame with I-beam connectors, steel plate connectors, and top and bottom layer connectors using single-sided bolts.

[0039] The S4 component is an angle steel member, which is connected by a connecting plate four. The connecting plate four is welded to the column leg to form the lower column.

[0040] In the S5, the square frame in the cross-type self-resetting device is used to connect with the structures on both sides, and ordinary steel plates are connected to the module frame by welding.

[0041] In step S6, the connection between the processed steel plate and the processed connecting plate is toothed, and then an elliptical hole is opened at the processing point. The processed steel plate and the processed connecting plate are connected using ordinary bolts and disc springs. During the connection process, the disc spring is placed between the ordinary bolts, the processed steel plate and the intermediate processed connecting plate to form a cross brace. The cross brace is welded to the upper and lower T-shaped steels in the square frame to form a cross-type self-resetting device. Then, one side of the cross-type self-resetting device is connected to the bracket column by bolts, and the other side is connected to the module frame by welding.

[0042] The beneficial effects of this invention are:

[0043] 1. Fast construction speed

[0044] This invention employs modular structure technology, manufacturing building modules in a factory and transporting them to the site for assembly to form a complete building. This process eliminates the need for on-site formwork erection and concrete pouring, reducing on-site wet work and simplifying the on-site construction process. On-site work mainly involves hoisting and connection, making the process simple and fast, thus greatly shortening the construction period.

[0045] 2. Good seismic performance

[0046] The connection device between the main and auxiliary spans of the industrial plant in this invention employs a self-resetting mechanism. This self-resetting mechanism consists of a machined steel plate with teeth and elliptical holes, and a machined connecting plate. The connection is made using bolts with disc springs on both sides. The teeth and disc springs are designed to allow for self-resetting after relative displacement of the main and auxiliary spans. The elliptical holes are designed to allow for vibration damping during earthquakes by allowing displacement between the main and auxiliary spans. The stiffness and self-resetting capability between the main and auxiliary spans can be changed by adjusting the tightness of the bolts.

[0047] 3. Cost savings

[0048] The construction process of this invention involves a small amount of wet work, and the on-site work mainly involves hoisting and connection. The construction process is simple, so it does not require a large amount of labor, thereby greatly reducing labor costs.

[0049] 4. Good overall integrity

[0050] In this invention, the beams and columns of the modular frame structure are all bolted together and supported, thus ensuring the overall stability of the modular structure and facilitating transportation and use. The modules are connected using H-beams and other connectors, which solves both vertical and horizontal connection problems between modules. In the industrial plant, the main and secondary spans are connected by protruding short beams, which are then connected by a self-resetting device, thereby linking the main and secondary spans. Adjusting the self-resetting device further alters the stiffness and self-resetting capability between the main and secondary spans. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of the modular combination structure of the main and auxiliary span self-resetting connection (linear self-resetting device) of the present invention in an industrial plant.

[0052] Figure 2 This is a schematic diagram of the modular combination structure of an industrial plant using the main and auxiliary cross-type self-resetting connection (cross-type self-resetting device) of the present invention.

[0053] Figure 3 yes Figure 1 Enlarged view (3D view) of area A in the middle.

[0054] Figure 4 yes Figure 1 Enlarged view (side view) of area A in the middle.

[0055] Figure 5 yes Figure 2 Enlarged view (3D view) of area C.

[0056] Figure 6 yes Figure 2 Enlarged view (top view) of area C in the middle.

[0057] Figure 7 yes Figure 2 Enlarged view (side view) of area C in the middle.

[0058] Figure 8 This is a schematic diagram of the modular structure of the present invention. Figure 1 , 2 (Enlarged view of area B in the middle)

[0059] Figure 9 This is a schematic diagram of the steel-concrete composite irregular column structure of the present invention.

[0060] Figure 10 This is a schematic diagram of the corbel structure of the present invention.

[0061] Figure 11 This is a schematic diagram of the vertical connection of the modular structure of the present invention (illustrated connector).

[0062] Figure 12This is a schematic diagram of the vertical connection between the modular structures in the middle layer of this invention (illustrated connector).

[0063] Figure 13 This is a schematic diagram of the horizontal connection between the top-level modular structures of the present invention (illustrated connector).

[0064] Figure 14 This is a schematic diagram of the I-beam connector structure of the present invention.

[0065] Figure 15 This is a schematic diagram of the steel plate connector structure of the present invention.

[0066] Figure 16 This is a schematic diagram of the top and bottom layer connector structure of the present invention.

[0067] Figure label:

[0068] 1. Corbel column; 2. Short beam one; 3. Short beam two; 4. Fabricated steel plate; 5. Fabricated connecting plate; 6. Elliptical hole; 7. Ordinary bolt; 8. Disc spring; 9. T-shaped steel; 10. Ordinary steel plate; 11. Perforated steel plate; 12. Bolt hole; 13. Connecting plate; 14. Cross brace; 15. Fabricated connecting plate two; 16. Ordinary steel plate; 17. Steel-concrete irregular column; 18. I-beam; 19. Connecting plate one; 20. Long web I-beam; 21. T-beam; 22. Reserved uncast concrete portion; 23. Concrete; 24. End plate; 25. Square hole; 26. I-beam; 27. Stiffening rib; 28. Fitting; 29. ​​Connecting plate four; 30. I-beam upper column; 31. I-beam connector; 32. Steel plate connector; 33. Top and bottom connector; 34. One-way bolt. Detailed Implementation

[0069] The present invention will be further described in detail below with reference to the embodiments.

[0070] refer to Figures 1 to 16 The modular combined structure industrial plant of the present invention, which features a self-resetting connection between the main and secondary spans, includes a main span section and a secondary span section.

[0071] like Figure 1 , 2 As shown in Figure 10, the corbel column 1 of the main span is a steel-concrete lattice column. The corbel column 1 is composed of I-beams 26, stiffening ribs 27, lacing members 28, connecting plates 29, upper I-beams 30, short beams 2, and concrete 232. The short beams 2 are provided for the reset connection between the main and secondary spans.

[0072] like Figure 1 , 2As shown in Figure 8, the secondary span adopts a modular frame structure, in which the modular frame consists of steel-concrete composite irregular columns 17 and I-beams 18. Bolt holes are provided at both ends of the I-beams 18 to facilitate connection between the I-beams 18 and the steel-concrete composite irregular columns 17 using connecting plates 19. The modules are connected using connectors, including I-beam connectors 31, steel plate connectors 32, and top and bottom layer connectors 33.

[0073] The steel-concrete composite irregular column 17 and the I-beam 18 are connected by connecting plate 19 to form module frame B. The connecting plate 19 is connected to the steel-concrete composite irregular column 17 by welding; the connecting plate 19 is connected to the I-beam 18 by bolts.

[0074] Modular steel-concrete composite irregular column frames B are connected by connectors to form a modular frame structure for the secondary span. Short beams 2 or cross-type self-resetting devices C are welded outwards at the beam height of each module on each floor of the secondary span to facilitate the reset connection between the main and secondary spans.

[0075] The main and auxiliary span reset connection is achieved by connecting the extended short beams 2 and 3 to a linear self-resetting device or directly using a cross-type self-resetting device. The linear self-resetting device is constructed by connecting four machined steel plates 4 and one machined connecting plate 5 using ordinary bolts 7 and disc springs 8. Elliptical holes 6 are provided at the connection points of the machined steel plates 4 and the connecting plate 5 to allow relative sliding between them. The connection parts of the machined steel plates 4 and the connecting plate 5 are toothed. The teeth and the disc spring 8 work together to push the relatively sliding machined steel plates 4 and the connecting plate 5 back to their original positions, thus achieving the self-resetting function. The cross-type self-resetting device is formed by machining one side of the processed steel plate 4 in the length direction as a tooth, and machining one side of the processed connecting plate 2 15 in the length direction as a tooth. The processed steel plate 4 and the processed connecting plate 2 15 are connected at the toothed end, and the toothed structures of the two are matched and correspond. An elliptical hole 6 is opened at the toothed structure position of the processed steel plate 4 and the processed connecting plate 2 15. The major axis of the elliptical hole 6 is in the length direction of the processed connecting plate 2 15. Ordinary bolts 7 and disc springs 8 are used to pass through the elliptical hole 6 to connect the processed steel plate 4 and the processed connecting plate 2 15. The other end of the processed steel plate 2 15 is connected to the ordinary steel plate 2 16 by welding to form a diagonal brace 14. The two diagonal braces 14 are cross-welded to the two T-shaped steels 9 in the square frame.

[0076] like Figure 1As shown in Figure 2, the modular composite structure industrial plant based on the self-resetting connection of the main and secondary spans consists of a main span section with steel-concrete lattice columns as the main frame columns and a secondary span section composed of modular steel-concrete irregular-shaped column frames B as modules. The main span section and the secondary span section are connected by self-resetting connection parts A or C.

[0077] like Figure 3 As shown in Figure 4, the self-resetting device A is composed of a machined steel plate 4, a machined connecting plate 5, a disc spring 8, and ordinary bolts 7. The connection between the machined steel plate 4 and the machined connecting plate 5 is machined with teeth and has elliptical holes 6. The elliptical holes 6 are provided to allow the frame to deform within certain limits during an earthquake. The toothed machining and the disc spring 8 work together to compress the deformation within certain limits back to its original shape.

[0078] like Figure 5-7 As shown, the self-resetting device C is a square frame composed of two T-shaped steels 9, ordinary steel plates 10 and perforated steel plates 11, with a cross brace 14 in the middle. The cross brace 14 is assembled from a processed steel plate 4, a processed connecting plate 2 15 and an ordinary steel plate 16. The processed steel plate 4 and the processed connecting plate 2 15 are engaged by a toothed structure and connected by bolts 7 and elliptical holes 6, so that the processed steel plate and the processed connecting plate can slide relative to each other to form shock absorption. A disc spring 8 is provided at the end of the bolt 7 to achieve self-resetting.

[0079] like Figure 9 As shown, the steel-concrete composite irregular column 17 is composed of long web I-beams 20, T-beams 21, end plates 24, and concrete 231. Both the upper and lower ends of the steel-concrete composite irregular column 17 have pre-reserved uncast concrete portions 22 to facilitate connection between modules. Corresponding bolt holes are provided in the webs of the long web I-beams 20 and T-beams 21 at the pre-reserved uncast concrete portions 22, facilitating module connection via connectors. A square hole 25 is provided at the bottom of the long web I-beams 20 for easy equipment use during module installation. Bolt holes are provided on the end plates 24 for easy connection between the upper and lower irregular columns.

[0080] like Figure 10 As shown, the corbel column 1 is composed of column legs, lacing members, and an upper column. Stiffening ribs 27 and short beams 2 are welded to the corresponding positions of the I-beam 26, and formwork is erected. Concrete 232 is poured, and after the concrete 232 reaches a certain strength, it is demolded and cured to form the column legs of the lattice corbel column. The column legs are connected to form the lower column via connecting plates 29 and lacing members 28. The lower column is connected to the upper I-beam column 30 through a connection area.

[0081] like Figure 11 As shown, a connection between modules of the present invention is applied to horizontal and vertical connections between intermediate layer modules.

[0082] like Figure 12 As shown, a vertical connection between modules of the present invention is applied to the vertical connection between intermediate layer modules.

[0083] like Figure 13 As shown, a horizontal connection between modules of the present invention is applied to the horizontal connection between the top and bottom layers.

[0084] like Figure 14 As shown, an I-beam connector is used for connecting intermediate layer modules.

[0085] like Figure 15 As shown, a steel plate connector is used for vertical connection between intermediate layer modules.

[0086] like Figure 16 As shown, a top-bottom connector is used for horizontal connections between top-level or bottom-level modules.

[0087] In summary, this invention provides two self-resetting devices. In the linear self-resetting device, the clamping part of the processed steel plate and the clamped part of the processed connecting plate cooperate through a toothed structure. A pair of processed steel plates clamping the same end of the processed connecting plate are connected to the processed connecting plate through bolts and elliptical holes, allowing the clamped part and the clamping part to slide relative to each other, forming a shock-absorbing part. In the cross-type self-resetting device, the processed steel plate and the processed connecting plate cooperate through a toothed structure and are connected by bolts and elliptical holes, allowing the processed steel plate and the processed connecting plate to slide relative to each other, forming a shock-absorbing part. A disc spring is provided at the end of the bolt to achieve self-resetting. The sub-span is composed of multiple modular frames connected horizontally and vertically using connectors. Its integrity and rigidity can be guaranteed to a certain extent. Therefore, the high rigidity of the sub-span can be used to limit the deformation of the main span, thereby forming a modular combined structure industrial plant with self-resetting connection between the main and sub-spans.

Claims

1. An industrial assembly structure based on a main and secondary span reset connection, characterized in that, a main span portion and a secondary span portion are assembled by a self-resetting device, and that, The self-resetting device is a linear self-resetting device (A); The linear self-resetting device (A) includes a processing connecting plate (5) and four processing steel plates (4). The sides of both ends of the processing connecting plate (5) in the length direction are processed into teeth, and one side of each processing steel plate (4) is processed into teeth. Each pair of processing steel plates (4) clamps one end of the processing connecting plate (5), and the toothed structures of the two are matched and correspond. A through elliptical hole (6) is opened at the toothed structure position of the processing steel plate (4) and the processing connecting plate (5). The major axis of the elliptical hole (6) is the length direction of the processing connecting plate (5). Ordinary bolts (7) and disc springs (8) are used to pass through the elliptical hole (6) to connect the processing steel plate (4) and the processing connecting plate (5). Among them, the two processing steel plates (4) at one end of the processing connecting plate (5) are fixedly connected to the short beam one (2) of the main span, and the two processing steel plates (4) at the other end are fixedly connected to the short beam two (3) of the secondary span.

2. An industrial assembly structure based on a main and secondary span reset connection, characterized in that, a main span portion and a secondary span portion are assembled by a self-resetting device, and that, The self-resetting device is a cross-type self-resetting device (C); The cross-type self-resetting device (C) includes a square frame and cross-bracing (14). The square frame is composed of two T-shaped steels (9), a perforated steel plate (11), and a common steel plate (10). Each cross-bracing (14) includes a machined connecting plate (5) and a machined steel plate (4). One side of the machined steel plate (4) is machined into a tooth shape along its length, and one side of the machined connecting plate (15) is machined into a tooth shape. The machined steel plate (4) and the machined connecting plate (15) are connected at the toothed end, and their toothed structures match and correspond. The toothed structure of the connecting plate 2 (15) has a through elliptical hole (6). The long axis of the elliptical hole (6) is the length direction of the connecting plate 2 (15). Ordinary bolts (7) and disc springs (8) are used to pass through the elliptical hole (6) to connect the processing steel plate (4) and the connecting plate 2 (15). The other end of the processing steel plate 2 (15) is connected to the ordinary steel plate 2 (16) by welding to form a diagonal brace (14). The two diagonal braces (14) are cross-welded to the two T-shaped steels (9) in the square frame to form a cross-type self-resetting device (C). The perforated steel plate (11) is fixedly connected to the corbel column (1) of the main span, and the ordinary steel plate (10) is fixedly connected to the I-beam (18) at the height of the upper part of the secondary span.

3. The industrial assembly structure based on a primary-secondary cross-reset connection according to claim 1 or 2, characterized in that, The corbel column (1) of the main span is a steel-concrete lattice column, and the secondary span is a modular frame structure composed of modular frames (B) connected by connectors. The steel-concrete lattice column includes vertically placed I-beams (26), with the top of the I-beams (26) connected to the upper I-beam column (30); The modular frame (B) is assembled from steel-concrete composite columns (17) and I-beams (18), and adjacent modular frames (B) are connected by connectors. When the self-resetting device is a linear self-resetting device (A), a short beam (2) is welded to the outer side of the flange of the I-beam (26) near the sub-span, and a short beam (3) is welded outward at the height of the upper beam on each module frame (B); the short beam (2) and the short beam (3) have the same height and are connected by the linear self-resetting device (A) to realize the reset connection between the main and sub-spans.

4. The industrial assembly structure based on primary and secondary cross-reset connection according to claim 3, characterized in that, The steel-concrete lattice column also includes stiffening ribs (27), lacing members (28), connecting plate four (29), and concrete one (232); Among them, stiffening ribs (27) are set in the inner area of ​​the two flanges of the I-beam (26), and the height is located at the center line connecting the lacing piece (28) and the I-beam (26). Connecting plate four (29) is welded to the inner side of the two flanges, and the lacing piece (28) is connected between the connecting plate four (29) of the two flanges. Concrete one (232) is set in the inner area of ​​the two flanges of the I-beam (26).

5. The industrial assembly structure based on primary and secondary cross-reset connection according to claim 3, characterized in that, The steel-concrete composite column (17) consists of a long web I-beam (20), a T-beam (21), end plates (24), and a second layer of concrete (231). The T-beam (21) is parallel to and of equal length to the long web I-beam (20), with its web vertically welded to the web of the long web I-beam (20). The end plates (24) are welded to both ends of the T-beam (21) and the long web I-beam (20). The second layer of concrete (231) is poured on the web of the T-beam (21) and the long web I-beam (20). The side is flush with the flange, and uncast concrete portions (22) are reserved at both ends; in the uncast concrete portions (22), corresponding bolt holes are opened on the webs of the long web I-beam (20) and T-beam (21) to connect the module frame (B) through connectors; a square hole (25) is opened at the lower end of the web of the long web I-beam (20) to facilitate equipment use during the installation of the module frame (B); bolt holes are opened on the end plate (24) to facilitate the connection of the upper and lower steel-concrete irregular columns (17); The I-beam (18) has corresponding bolt holes at both ends so that the I-beam (18) can be connected to the steel-concrete composite column (17) by connecting plate one (19) to form a basic modular frame; wherein the connecting plate one (19) is connected to the steel-concrete composite column (17) by welding and to the I-beam (18) by bolts to form the modular frame (B).

6. The industrial assembly structure based on a primary-secondary cross-reset connection according to claim 3 or 5, characterized in that, The connectors include I-beam connectors (31), steel plate connectors (32), and top and bottom plate connectors (33); The bolt holes on the flange of the I-beam connector (31) correspond to the bolt holes on the flanges at both ends of the I-beam (20) of the long web of the steel-concrete composite column (17), which facilitates the horizontal and vertical connection of the two intermediate layer module frames (B). The bolt holes of the steel plate connector (32) correspond to the bolt holes at both ends of the T-shaped steel (21) in the steel-concrete composite column (17), which facilitates the vertical connection of the two module frames (B). The bolt holes on the flanges of the top and bottom connecting parts (33) correspond to the bolt holes on the flanges at both ends of the I-beams (20) of the long web of the steel-concrete composite column (17), which facilitates the horizontal connection of the top and bottom module frames (B).

7. The construction method of the industrial composite structure based on the primary and secondary span reset connection as described in claim 1, 3, 4, 5 or 6, characterized in that, Includes the following steps: S1), In the factory, short beams (2) and stiffening ribs (27) are welded to the corresponding positions of the I-beam (26), and formwork is erected, concrete (232) is poured, and the formwork is demolded and cured to form the column limb; S2), In the factory, steel-concrete composite columns (17) are prepared and bolted to I-beams (18) to obtain a modular frame (B); S3), on site, the left and right module frames (B) and the upper and lower module frames (B) are connected by connectors. All connections are made using single-sided bolts (34). Once all module frames (B) are connected, the sub-span section is completed. S4), on site, the column members are connected by the lacing piece (28) to form the lower column of the corbel column (1), and then the I-shaped steel upper column (30) of the corbel column (1) is welded using the transition section between the upper and lower columns to form the main span; S5), on site, short beam two (3) is welded to the upper beam position of the module frame (B); S6) On site, the linear self-resetting device (A) is connected to short beam one (2) and short beam two (3).

8. The construction method according to claim 7, characterized in that: In S1), stiffening ribs (27) are welded at the connecting column of the lacing member (28) corresponding to the I-beam (26), and one end of short beam (2) is welded at the upper beam position of the module frame (B) corresponding to the I-beam (26). The other end of short beam (2) has bolt holes for connection with the self-resetting device. In S2), the long web I-beam (20) and T-beam (21) are welded together, formwork is erected, concrete II (231) is poured, and the formwork is demolded and cured. Space is left at both ends of the length direction, and no concrete is poured in this part. Bolt holes are opened at the part of the web where no concrete is poured (22), and square holes (25) are opened at the lower end of the web of the long web I-beam (20). Two end plates (24) with bolt holes are welded together to form a steel-concrete irregular column (17). The steel-concrete irregular column (17) and the I-beam (18) are bolted together using connecting plate I (19) to form a modular frame (B). The connecting plate I (12) is welded to the column and bolted to the beam. The sub-span section (S3) is formed by connecting the module frame (B) with I-beam connectors (31), steel plate connectors (32) and top and bottom layer connectors (33) using single-sided bolts (34). The S4), the lacing (28) is an angle steel, the lacing (28) is connected by the connecting plate four (29), the connecting plate four (29) is welded to the column leg, thereby forming the lower column; In the S5), one end of the short beam (3) is welded to the module frame (B), and the other end has a bolt hole to connect to the linear self-resetting device (A); In step S6), the connection between the processed steel plate (4) and the intermediate processing connecting plate (5) is toothed, and then an elliptical hole (6) is opened at the processing point. The processed steel plate (4) and the intermediate processing connecting plate (5) are connected by ordinary bolts (7) and disc springs (8). During the connection process, the disc springs (8) are placed between the ordinary bolts (7) and the processed steel plate (4) and the intermediate processing connecting plate (5) to form a linear self-resetting device (A). Then the linear self-resetting device (A) is connected to the short beam one (2) and the short beam two (3) by bolt connection.

9. The construction method of the industrial composite structure based on the primary and secondary span reset connection as described in claim 2, 3, 4, 5 or 6, characterized in that, Includes the following steps: S1), In the factory, stiffening ribs (27) are added to the corresponding positions of the I-beam (26), and formwork is erected, concrete is poured (232), and the formwork is removed and cured to form the column limb; S2), In the factory, steel-concrete composite columns (17) are prepared and bolted to I-beams (18) to obtain a modular frame (B); S3), on site, the left and right module frames (B) and the upper and lower module frames (B) are connected by connectors. All connections are made using single-sided bolts (34). Once all module frames (B) are connected, the sub-span section is completed. S4), on site, the column members are connected by the lacing (28) to form the lower column of the corbel column (1), and then the I-beam upper column (30) of the corbel column (1) is welded by the transition section of the upper and lower columns to form the main span part; S5), on site, the ordinary steel plate (10) of the cross-type self-resetting device (C) is welded to the upper beam position of the module frame (B); S6) On site, the perforated steel plate (11) on the other side of the cross-type self-resetting device (C) is connected to the corbel column (1).

10. The construction method according to claim 9, characterized in that: S1) Stiffening ribs (27) are welded at the connecting column of the corresponding lacing member (28) of the I-beam (26); In S2), the long web I-beam (20) and T-beam (21) are welded together, formwork is erected, concrete II (231) is poured, and the formwork is demolded and cured. Space is left at both ends of the length direction, and no concrete is poured in this part. Bolt holes are opened at the part of the web where no concrete is poured (22), and square holes (25) are opened at the lower end of the web of the long web I-beam (20). Two end plates (24) with bolt holes are welded together to form a steel-concrete irregular column (17). The steel-concrete irregular column (17) and the I-beam (18) are bolted together using connecting plate I (19) to form a modular frame (B). The connecting plate I (12) is welded to the column and bolted to the beam. The sub-span section (S3) is formed by connecting the module frame (B) with I-beam connectors (31), steel plate connectors (32) and top and bottom layer connectors (33) using single-sided bolts (34). The S4), the lacing (28) is an angle steel, the lacing (28) is connected by the connecting plate four (29), the connecting plate four (29) is welded to the column leg, thereby forming the lower column; The purpose of the square frame in the cross-type self-resetting device (C) is to connect with the structures on both sides. The ordinary steel plate (10) is connected to the module frame (B) by welding. In step S6), the connection between the processed steel plate (4) and the processed connecting plate (15) is toothed, and then an elliptical hole (6) is opened at the processing point. The processed steel plate (4) and the processed connecting plate (15) are connected by ordinary bolts (7) and disc springs (8). During the connection process, the disc springs (8) are placed between the ordinary bolts (7) and the processed steel plate (4) and the intermediate processed connecting plate (5) to form a cross brace (14). The cross brace (14) is welded to the upper and lower T-shaped steels in the square frame to form a cross-type self-resetting device (C). Then, one side of the cross-type self-resetting device (C) is connected to the bracket column (1) by bolts, and the other side is connected to the module frame (B) by welding.

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