Steel structure plant with multiple anti-seismic defense lines

Abstract

The invention relates to industrial buildings or building groups, in particular to a steel structure factory building with multiple anti-seismic defense lines. The steel structure plant with the multiple anti-seismic defense lines comprises a foundation (1), stand columns (21), cross beams (22) and a roof (3) and is characterized by further comprising connecting plates (41), pin shafts (42), buckling restrained braces (5) and self-resetting braces (6), and the connecting plates (41) are fixed to the bottoms of the stand columns (21) and the connecting positions of the stand columns (21) and the cross beams (22) respectively; each bottom frame unit (23) is obliquely supported by a buckling restrained brace (5); each upper frame unit (24) is obliquely supported by a self-resetting support (6). The anti-seismic performance is high, and recovery is convenient.

Description

Technical Field

[0001] This patent relates to industrial buildings or building complexes, specifically a steel structure factory building with multiple seismic defense lines. Background Art

[0002] As a common building form in the industrial field, steel structure factory buildings have the characteristics of strong load-bearing capacity, fast construction speed, and high durability, playing an important role in engineering construction. However, there are some problems with the seismic performance of steel structure factory buildings. In the design, large and heavy process equipment is usually placed in the upper space, which leads to a significant increase in the load borne by the factory building, especially more sensitive and obvious during earthquakes. In addition, in order to accommodate the installation and maintenance of large equipment, the factory building often needs to have a relatively high storey height and a large span. Such a design may cause a series of structural problems, such as insufficient seismic walls and discontinuous column bracing, affecting the stability of the structure. In addition, it may be difficult to construct the factory building beams synchronously with the main structure, and there may also be problems such as missing floors, large openings in the floor slabs, or stepped floors, further weakening the lateral stiffness of the structure.

[0003] However, earthquakes have occurred frequently in recent years, posing a more severe test to the safety of steel structure factory buildings. Earthquakes may not only cause damage to factory equipment and disrupt production lines, but also result in casualties, bringing heavy losses to factories. Even if there is no collapse, steel structure factory buildings often have large residual deformations after earthquakes, making the repair work difficult and possibly requiring demolition and reconstruction. To ensure the safety of people's lives and property, reduce the post-earthquake repair costs, and enable factories to quickly resume production requirements, it is urgent to propose new seismic technologies for steel structure factory buildings to meet the seismic requirements. Summary of the Invention

[0004] In order to overcome the defects of the prior art and provide a building with strong seismic performance and convenient restoration, the present invention discloses a steel structure factory building with multiple seismic defense lines.

[0005] The present invention achieves the invention purpose through the following technical solutions:

[0006] The present application discloses a steel structure factory building with multiple seismic defense lines, and the factory building includes: a foundation (1), a frame unit, buckling-restrained braces (5), and self-centering braces (6), wherein:

[0007] The frame unit includes columns (21) and beams (22). The columns (21) are vertically fixed on the foundation (1), the beams (22) are horizontally arranged between two adjacent columns (21), the beams (22) and the columns (21) cooperate to form a plurality of the frame units, and the frame unit includes a bottom frame unit (23) and an upper frame unit (24);

[0008] The buckling-restrained brace (5) is configured to provide support between the bottom frame units;

[0009] The self-centering brace (6) is configured to provide support between the upper frame units (24), and the self-centering brace (6) is configured with a prestressed screw rod (61), an intermediate plate (623), an inner support cylinder (631), an outer support cylinder (632), a support rod (65), a self-locking clamp (66), an energy dissipation rod (67), a first end plate (621), and a second end plate (622); the intermediate plate (623) is sleeved and fixed in the middle of the prestressed screw rod (61), and the inner support cylinder (631) is movably sleeved outside the prestressed screw rod (61) and passes through the intermediate plate (623); the outer support cylinder (632) is movably sleeved outside the inner support cylinder (631) and passes through the intermediate plate (623); one end of the support rod (65) passes through the intermediate plate (623), and the other end is fixed on the first end plate (621); the self-locking clamp (66) is hoop-mounted outside the support rod (65) and fixed on the intermediate plate (623), and one end of the energy dissipation rod (67) is fixed on the intermediate plate (623) and the other end is fixed on the second end plate (622);

[0010] There are no less than two prestressed screw rods (61), which are respectively fixed on both sides of the first end plate (621) and the second end plate (622);

[0011] There are no less than three support rods (65), and multiple support rods (65) are evenly distributed around the inner support cylinder (631), and a self-locking clamp (66) is respectively hoop-mounted at the position where each support rod (65) passes through the intermediate plate (623).

[0012] In a preferred example, the components of the factory building are connected by connecting plates (41).

[0013] In a preferred example, the connecting plate (41) is provided with connecting holes, and the connecting holes are provided with insertion pins for fixing the connecting plate and each component.

[0014] In a preferred example, lead-out grooves are provided on the first end plate (621) and the second end plate (622) of the self-centering brace (6), and are configured

[0015] In a preferred example, the energy dissipation rod (67) includes a core energy dissipation section (671) and a connecting section (672). The two ends of the energy dissipation section (671) are respectively connected to the fixed connecting section (672). The central axes of the energy dissipation section (671) and the connecting section (672) coincide with each other, and the outer diameter of the connecting section (672) is not less than twice the outer diameter of the energy dissipation section (671).

[0016] In a preferred example, the self-locking fixture (66) includes an anchor ring (661), clamping blocks (662), a sealing ring (663), a gland (664) and a return spring (665).

[0017] The inner side wall of the anchor cup (661) is an inclined surface that gradually contracts from the cup mouth to the cup bottom. The bottom surface of the anchor ring (661) is provided with a through hole. The anchor cup (661) is sleeved on the support rod (65) through the through hole on the bottom surface and makes the bottom surface of the anchor cup (661) fit the middle plate (623).

[0018] There are at least three clamping blocks (662). The outer side surfaces of the clamping blocks (662) and the inner side wall of the anchor cup (661) match each other. The inner side surfaces of the clamping blocks (662) and the outer side surface of the support rod (65) match each other. The clamping blocks (662) are sequentially embedded between the inner side wall of the anchor cup (661) and the outer side surface of the support rod (65) around the support rod (65). The sealing ring (663) is hoop-shaped outside each clamping block (662).

[0019] The gland (664) is provided with a through hole. The gland (664) is sleeved on the support rod (65) and covers the cup mouth of the anchor cup (661). The return spring (665) is sleeved on the support rod (65) and is embedded between the top surface of the clamping block (662) and the gland (664).

[0020] In a preferred example, the prestressed screw (61) is bolted to the first end plate (621) and the second end plate (622).

[0021] In a preferred example, the inner end of the first extension plate (641) is fixed to the end surface of the inner support cylinder (631). The outer end of the first extension plate (641) extends from the lead-out groove of the first end plate (621) to the outside of the first end plate (621). The outer end of the first extension plate (641) is provided with a connection hole for the self-resetting support (6). The inner end of the second extension plate (642) is fixed to the end surface of the outer support cylinder (632). The outer end of the second extension plate (642) extends from the lead-out groove of the second end plate (622) to the outside of the second end plate (622). The outer end of the second extension plate (642) is provided with a connection hole for the self-resetting support (6).

[0022] This patent aims to provide a steel structure factory building with multiple seismic defense lines to meet the seismic design goals of "not damaged by small earthquakes", "repairable by medium earthquakes", and "not collapsed by large earthquakes". This patent dissipates input energy by setting self-resetting supports with low prestress requirements between steel columns, so that the steel structure factory building has recoverable functionality, reduces residual displacement after an earthquake, and can quickly resume production and maintain normal operations. At the same time, in the event of a rare earthquake, the post-earthquake residual displacement of the structure is controlled within a controllable range through the joint energy dissipation of self-resetting supports and buckling-restrained supports, thereby reducing repair costs and ensuring the safety of people's lives and property. The design of multiple seismic defense lines in this patent can improve the overall seismic performance of steel structure factories and provide an effective solution for protection and recovery under earthquake disasters.

[0023] This patent includes a replaceable energy dissipation system, a reset system, and a bracket and a transmission mechanism for installing the energy dissipation system and the reset system, and the three form an integrated body.

[0024] The energy dissipation system comprises a support rod, a self-locking clamp and a plurality of energy dissipation rods, wherein the support rod and the self-locking clamp constitute a one-way force transmission element;

[0025] The resetting system comprises at least one prestressed screw;

[0026] The bracket and transmission mechanism include a first end plate, a second end plate, an intermediate plate, an inner support tube, and an outer support tube, wherein the first end plate, the second end plate and the intermediate plate constitute a bracket for installing the reset system and the energy consumption system.

[0027] The inner support tube is sleeved in the outer support tube to form a movable nesting structure, and the two are of equal length. When the movable nesting structure formed between the inner support tube and the outer support tube slides axially, the inner support tube and the outer support tube respectively push the first end plate and the second end plate to cause relative displacement;

[0028] The pressure cover is used to support the return spring and maintain the axial stability of the self-locking clamp. When under tension, the self-locking clamp withstands the tensile force through the engagement between the multiple enclosed clamping blocks and the support rod. When under compression, the clamping blocks and the support rod are separated, and only relative sliding occurs between the clamping blocks and the support rod without bearing pressure.

[0029] When this patent is used, energy is introduced from the outside through the bracket and transmission mechanism. When the two ends of the support of the plant are relatively displaced due to the earthquake, the energy dissipation system is pulled to produce yield deformation, and the reset system is pulled to produce elastic deformation. The reset is completed by the restoring force generated by the elastic deformation of the reset system, thereby driving the plant to complete the reset.

[0030] Self - resetting braces are used as the first seismic defense line of the plant to dissipate the input energy under frequent - earthquake and higher - level earthquakes and control the residual deformation of the plant after the earthquake. Buckling - restrained braces are used as the second seismic defense line of the plant to dissipate the input energy under rare - earthquake.

[0031] The self - resetting brace is a low - prestress - demand brace, including: a replaceable energy - dissipation system, a reset system, and brackets and transmission mechanisms for installing the energy - dissipation system and the reset system. These three form an integrated body and connect to the externally imported energy through the brackets and transmission mechanisms.

[0032] When relative displacement occurs at both ends of the self - resetting brace due to earthquake action, the energy - dissipation system undergoes tensile yield deformation, and at the same time, the reset system undergoes tensile elastic deformation. The reset is completed through the restoring force generated by the elastic deformation of the reset system, and then the plant is driven to complete the reset.

[0033] The working principle of the self - locking fixture is as follows:

[0034] The energy - dissipation stage is the load - bearing state. In the energy - dissipation stage, the clamping block bites the support rod and bears the load, thereby stretching the energy - dissipation rod to dissipate energy. The reset stage is the non - load - bearing state. In the reset stage, the clamping block and the support rod are disengaged, and the support rod slips without bearing the load.

[0035] This patent has the following beneficial effects:

[0036] 1. In this patent, when a frequent - earthquake or design - basis earthquake occurs, the low - prestress - demand self - resetting braces in the plant can dissipate the earthquake energy and eliminate the residual deformation of the steel structure after the earthquake. While maintaining the structural integrity, the plant can almost not need repair after the earthquake and can resume its use function.

[0037] 2. In this patent, when a rare - earthquake occurs, the low - prestress - demand self - resetting braces and buckling - restrained braces in the plant dissipate the energy input into the structure simultaneously, and the low - prestress - demand self - resetting braces control the structural residual deformation within the repairable range, reducing the repair cost of the plant after the earthquake, enabling it to be put back into production and use in a short time, and ensuring the economic benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is the structural schematic diagram of this patent,

[0039] Figure 2 is the connection schematic diagram of the column, beam, connecting plate, pin shaft, buckling - restrained brace and self - resetting brace in this patent,

[0040] Figure 3 is the connection schematic diagram of the self - resetting brace and the buckling - restrained brace in this patent,

[0041] Figure 4 is the structural schematic diagram of the self - resetting brace in this patent,

[0042] Figure 5 It is a schematic cross-sectional structure diagram of the self-centering brace in this patent,

[0043] Figure 6 It is a schematic structure diagram of the energy dissipation bar in this patent,

[0044] Figure 7 It is a schematic structure diagram of the self-locking fixture in the load-bearing state in this patent,

[0045] Figure 8 It is a schematic structure diagram of the self-locking fixture in the non-load-bearing state in this patent.

[0046] The component names corresponding to each reference numeral are as follows:

[0047] 1: Foundation,

[0048] 21: Column,

[0049] 22: Cross beam,

[0050] 23: Bottom frame unit,

[0051] 24: Upper frame unit,

[0052] 3: Roof,

[0053] 41: Connecting plate,

[0054] 42: Pin shaft,

[0055] 5: Buckling-restrained brace,

[0056] 6: Self-centering brace,

[0057] 61: Prestressed screw,

[0058] 621: First end plate,

[0059] 622: Second end plate,

[0060] 623: Intermediate plate,

[0061] 631: Inner support cylinder,

[0062] 632: Outer support cylinder,

[0063] 641: First extension plate,

[0064] 642: Second extension plate,

[0065] 65: Support rod,

[0066] 66: Self-locking fixture,

[0067] 661: Anchor ring,

[0068] 662: Clamping block,

[0069] 663: Sealing ring,

[0070] 664: gland,

[0071] 665: Return spring,

[0072] 67: Energy dissipation bar,

[0073] 671: Core section,

[0074] 672: Connection section. Detailed implementation mode

[0075] The present invention will be further described below through specific embodiments.

[0076] Embodiment 1

[0077] A steel structure factory building with multiple seismic resistance lines includes a foundation 1, columns 21, cross beams 22, a roof 3, connecting plates 41, pin shafts 42, buckling-restrained braces 5 and self-centering braces 6, as Figures 1 to 8 shown. The specific structure is:

[0078] The foundation 1 is laid on the ground;

[0079] As Figure 2 and Figure 3 shown: Both the columns 21 and the cross beams 22 are made of structural steel. Each column 21 is vertically fixed to the foundation 1 in sequence. Each cross beam 22 is horizontally arranged between two adjacent columns 21 from bottom to top. Both ends of the cross beam 22 are respectively fixed to two adjacent columns 21. Two adjacent columns 21 and the bottommost cross beam 22 form a bottom frame unit 23. Two adjacent columns 21 and two adjacent cross beams 22 form an upper frame unit 24. The roof 3 is erected on the tops of the columns 21;

[0080] The connecting plate 41 is provided with connecting holes. A connecting plate 41 is respectively fixed at the bottom of each column 21 and at the connection between the column 21 and the cross beam 22;

[0081] Both ends of the buckling-restrained brace 5 are provided with connecting holes. The connecting holes at both ends of the buckling-restrained brace 5 are respectively aligned with the connecting holes on two connecting plates 41 on a diagonal line of the bottom frame unit 23, and then inserted with pin shafts 41 for connection, so that each bottom frame unit 23 is obliquely supported by a buckling-restrained brace 5;

[0082] Both ends of the self - resetting support 6 are respectively provided with connection holes. The connection holes at both ends of the self - resetting support 6 are respectively aligned with the connection holes on two connecting plates 41 on a diagonal line of the upper frame unit 24, and then inserted with pin shafts 41 for connection, so that each upper frame unit 24 is obliquely supported by a self - resetting support 6.

[0083] In this embodiment, the self - resetting support 6 is as Figure 4 and Figure 5 shown: The self - resetting support 6 includes a prestressed screw 61, a first end plate 621, a second end plate 622, an intermediate plate 623, an inner support cylinder 631, an outer support cylinder 632, a first extension plate 641, a second extension plate 642, a support rod 65, a self - locking fixture 66 and an energy - dissipating rod 67.

[0084] Both ends of the prestressed screw 61 are respectively fixed with the first end plate 621 and the second end plate 622, and the intermediate plate 623 is sleeved and fixed in the middle of the prestressed screw 61.

[0085] The inner support cylinder 631 is arranged between the first end plate 621 and the second end plate 622. The inner support cylinder 631 is movably sleeved outside the prestressed screw 61 and passes through the intermediate plate 623, and the end face of the inner support cylinder 631 faces the first end plate 621; the length of the outer support cylinder 632 is equal to the length of the inner support cylinder 631. The outer support cylinder 632 is arranged between the first end plate 621 and the second end plate 622. The outer support cylinder 632 is movably sleeved outside the inner support cylinder 631 and passes through the intermediate plate 623, and the end face of the outer support cylinder 632 faces the second end plate 622.

[0086] The first end plate 621 is provided with an extraction groove. The inner end of the first extension plate 641 is fixed on the end face of the inner support cylinder 631. The outer end of the first extension plate 641 extends from the extraction groove of the first end plate 621 to the outside of the first end plate 621, and the outer end of the first extension plate 641 is provided with a connection hole of the self - resetting support 6; the second end plate 622 is provided with an extraction groove. The inner end of the second extension plate 642 is fixed on the end face of the outer support cylinder 632. The outer end of the second extension plate 642 extends from the extraction groove of the second end plate 622 to the outside of the second end plate 622, and the outer end of the second extension plate 642 is provided with a connection hole of the self - resetting support 6.

[0087] One end of the support rod 65 is connected and fixed to the first end plate 621. The other end of the support rod 65 passes through the intermediate plate 623, and the self - locking fixture 66 is hoop - sleeved outside the support rod 65 and fixed on the intermediate plate 623.

[0088] Both ends of the energy - dissipating rod 67 are respectively connected and fixed to the intermediate plate 623 and the second end plate 622.

[0089] In this embodiment, the energy - dissipating rod 67 is as Figure 6As shown: the energy-absorbing rod 67 includes a core energy-absorbing section 671 and a connecting section 672. The two ends of the energy-absorbing section 671 are respectively connected to the fixed connecting section 672. The central axes of the energy-absorbing section 671 and the connecting section 672 coincide with each other. The outer diameter of the connecting section 672 is not less than twice the outer diameter of the energy-absorbing section 671.

[0090] In this embodiment, the self-locking clamp 66 is as follows Figure 7 and Figure 8 As shown: the self-locking clamp 66 includes an anchor ring 661, a clamp block 662, a sealing ring 663, a pressure cover 664 and a return spring 665.

[0091] The inner wall of the anchor cup 661 is an inclined surface that gradually contracts from the cup mouth to the cup bottom. The bottom surface of the anchor ring 661 is provided with a through hole. The anchor cup 661 is sleeved on the support rod 65 through the through hole on the bottom surface and the bottom surface of the anchor cup 661 is in contact with the middle plate 623.

[0092] There are at least three clamping blocks 662, the outer side surface of the clamping block 662 matches the inner side wall of the anchor cup 661, the inner side surface of the clamping block 662 matches the outer side surface of the support rod 65, the clamping blocks 662 are sequentially embedded between the inner side wall of the anchor cup 661 and the outer side surface of the support rod 65 around the support rod 65, and the sealing ring 663 is clamped outside each clamping block 662;

[0093] The pressure cover 664 is provided with a through hole. The pressure cover 664 is sleeved on the support rod 65 and covers the cup mouth of the anchor cup 661. The return spring 665 is sleeved on the support rod 65 and embedded between the top surface of the clamping block 662 and the pressure cover 664.

[0094] In this embodiment:

[0095] There are two prestressed screws 61, which are respectively fixed on both sides of the first end plate 621 and the second end plate 622;

[0096] There are four support rods 65, each of which is evenly distributed around the inner support tube 631, and each support rod 65 is provided with a self-locking clamp 66 at the place where it passes through the middle plate 623;

[0097] The two ends of the prestressed screw rod 61 are respectively fixed to the first end plate 621 and the second end plate 622 by nuts;

[0098] The outer side surface of the energy dissipation rod 67 is provided with an external thread, and the two ends of the energy dissipation rod 67 are respectively connected and fixed to the middle plate 623 and the second end plate 622 through nuts.

[0099] This embodiment includes a replaceable energy consumption system, a reset system, and a bracket and a transmission mechanism for installing the energy consumption system and the reset system, and these three form an integrated body.

[0100] The energy dissipation system comprises a support rod 65, a self-locking clamp 66 and a plurality of energy dissipation rods 67, wherein the support rod 65 and the self-locking clamp 66 constitute a one-way force transmission element;

[0101] The resetting system comprises at least one prestressed screw 61;

[0102] The bracket and transmission mechanism include a first end plate 621, a second end plate 622, an intermediate plate 623, an inner support tube 631, and an outer support tube 632, wherein the first end plate 621, the second end plate 622 and the intermediate plate 623 constitute a bracket for installing the reset system and the energy consumption system.

[0103] The inner support tube 631 is sleeved in the outer support tube 632 to form a movable nesting structure. The two have the same length. When the movable nesting structure formed between the inner support tube 631 and the outer support tube 632 slides axially, the inner support tube 631 and the outer support tube 632 respectively push the first end plate 621 and the second end plate 622 to cause relative displacement.

[0104] The pressure cover 664 is used to support the return spring 665 to maintain the axial stability of the self-locking clamp 66; when subjected to tension, the self-locking clamp 66 withstands the tension through the engagement between the multiple enclosed clamping blocks 662 and the support rod 65; and when subjected to compression, the clamping blocks 662 and the support rod 65 are disengaged, and only relative sliding occurs between the clamping blocks 662 and the support rod 65 without being subjected to pressure.

[0105] When this embodiment is used, energy is introduced from the outside through the bracket and the transmission mechanism. When the two ends of the support of the factory building are relatively displaced due to the earthquake, the energy dissipation system is pulled to produce yield deformation, and the reset system is pulled to produce elastic deformation. The reset is completed by the restoring force generated by the elastic deformation of the reset system, thereby driving the factory building to complete the reset.

[0106] The self-righting support 6 is used as the first seismic defense line of the factory building to dissipate the input energy under frequent earthquakes and higher-level earthquakes and control the post-earthquake residual deformation of the factory building. The buckling restrained support 5 is used as the second seismic defense line of the factory building to dissipate the input energy under rare earthquakes.

[0107] The self-resetting support 6 is a low prestressing demand support, including: a replaceable energy dissipation system, a reset system, and a bracket and a transmission mechanism for installing the energy dissipation system and the reset system. The three form an integrated body, and are connected to the outside to introduce energy through the bracket and the transmission mechanism;

[0108] When the two ends of the self-resetting support 6 are relatively displaced due to the earthquake, the energy dissipation system yields and deforms under tension, while the reset system elastically deforms under tension, and resets through the restoring force generated by the elastic deformation of the reset system, thereby driving the factory building to complete reset.

[0109] The working principle of the self-locking fixture 66 is as follows Figure 7 and Figure 8 shown as follows:

[0110] The energy-consuming stage is the load-bearing state. During the energy-consuming stage, as shown in Figure 7 : the clamping block 662 bites the support rod 65 and bears the load, thereby stretching the energy-consuming rod 67 to consume energy; the reset stage is the non-load-bearing state. During the reset stage, as shown in Figure 8 : the clamping block 662 and the support rod 65 are disengaged, and the support rod 65 slips without bearing the load.

Claims

1. A steel structure factory building with multiple seismic protection lines, characterized in that: The factory building comprises: a foundation (1), a frame unit, a buckling restraint support (5) and a self-resetting support (6), wherein: The frame unit comprises a column (21) and a crossbeam (22), wherein the column (21) is vertically fixed on the foundation (1), and the crossbeam (22) is horizontally arranged between two adjacent columns (21), and the crossbeam (22) and the column (21) cooperate to form a plurality of frame units, wherein the frame unit comprises a bottom frame unit (23) and an upper frame unit (24); The buckling restraining support (5) is arranged between the bottom frame units to provide support; The self-resetting support (6) is arranged between the upper frame units (24) to provide support and the self-resetting support (6) is provided with a prestressed screw rod (61), an intermediate plate (623), an inner support tube (631), an outer support tube (632), a support rod (65), a self-locking clamp (66), an energy-absorbing rod (67), a first end plate (621) and a second end plate (622); the intermediate plate (623) is sleeved and fixed on the middle part of the prestressed screw rod (61), and the inner support tube (631) is movably sleeved on the prestressed screw rod. (61) outside and passes through the middle plate (623); the outer support tube (632) is movably mounted outside the inner support tube (631) and passes through the middle plate (623); one end of the support rod (65) passes through the middle plate (623), and the other end is fixed to the first end plate (621); the self-locking clamp (66) is hooped outside the support rod (65) and fixed to the middle plate (623); one end of the energy dissipation rod (67) is fixed to the middle plate (623) and the other end is fixed to the second end plate (622); There are no less than two prestressed screw rods (61), which are respectively fixed on both sides of the first end plate (621) and the second end plate (622); There are no less than three support rods (65), and the plurality of support rods (65) are evenly distributed around the inner support tube (631), and a self-locking clamp (66) is respectively provided at the place where each support rod (65) passes through the middle plate (623).

2. The steel structure factory building with multiple seismic lines according to claim 1 is characterized in that: The various components of the factory building are connected via a connecting plate (41).

3. The steel structure factory building with multiple seismic lines according to claim 2 is characterized in that: The connecting plate (41) is provided with a connecting hole, and the connecting hole is provided with an insertion pin for fixing the connecting plate and various components.

4. The steel structure factory building with multiple earthquake-resistant lines according to claim 1 is characterized in that: The first end plate (621) and the second end plate (622) of the self-resetting support (6) are provided with lead-out grooves, and are provided with a first extension plate (641) and a second extension plate (642).

5. The steel structure factory building with multiple earthquake-resistant lines according to claim 1 is characterized in that: The energy absorbing rod (67) comprises a core energy absorbing section (671) and a connecting section (672); the two ends of the energy absorbing section (671) are respectively connected to the fixed connecting section (672); the central axes of the energy absorbing section (671) and the connecting section (672) coincide with each other; and the outer diameter of the connecting section (672) is not less than twice the outer diameter of the energy absorbing section (671).

6. The steel structure factory building with multiple earthquake-resistant lines according to claim 1 is characterized in that: The self-locking clamp (66) comprises an anchor ring (661), a clamp block (662), a sealing ring (663), a gland (664) and a return spring (665). The inner side wall of the anchor cup (661) is an inclined surface that gradually contracts from the cup mouth to the cup bottom. The bottom surface of the anchor ring (661) is provided with a through hole. The anchor cup (661) is sleeved on the support rod (65) through the through hole on the bottom surface and the bottom surface of the anchor cup (661) is in contact with the middle plate (623). There are at least three clamping blocks (662), the outer side surface of the clamping block (662) and the inner side wall of the anchor cup (661) match each other, the inner side surface of the clamping block (662) and the outer side surface of the support rod (65) match each other, the clamping blocks (662) are sequentially embedded between the inner side wall of the anchor cup (661) and the outer side surface of the support rod (65) around the support rod (65), and the sealing ring (663) is clamped outside each clamping block (662); The pressure cover (664) is provided with a through hole, the pressure cover (664) is sleeved on the support rod (65) and covers the cup mouth of the anchor cup (661), and the return spring (665) is sleeved on the support rod (65) and embedded between the top surface of the clamping block (662) and the pressure cover (664).

7. The steel structure factory building with multiple earthquake-resistant lines according to claim 1 is characterized in that: The prestressed screw rod (61) is connected to the first end plate (621) and the second end plate (622) by bolts.

8. The steel structure factory building with multiple earthquake-resistant lines according to claim 4 is characterized in that: The inner end of the first extension plate (641) is fixed on the end face of the inner support tube (631), the outer end of the first extension plate (641) extends from the lead-out groove of the first end plate (621) to the outside of the first end plate (621), and the outer end of the first extension plate (641) is provided with a connection hole for a self-resetting support (6); the inner end of the second extension plate (642) is fixed on the end face of the outer support tube (632), the outer end of the second extension plate (642) extends from the lead-out groove of the second end plate (622) to the outside of the second end plate (622), and the outer end of the second extension plate (642) is provided with a connection hole for a self-resetting support (6).

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