Special-shaped metal shearing damper

Abstract

The application discloses a special-shaped metal shear damper, which comprises an upper connecting plate, a lower connecting plate arranged below the upper connecting plate, and an energy consumption assembly arranged on the side of the upper connecting plate and the lower connecting plate close to each other. The application relates to the technical field of energy dissipation and shock absorption of building structures. Through cooperation between the upper connecting plate, the lower connecting plate, the energy consumption assembly and the side constraint assembly, lateral constraint is realized on both sides of the energy consumption plate, mechanical connection is adopted to replace traditional welding mode to fix the energy consumption plate and the upper and lower connecting plates, the deterioration of the mechanical properties of steel in the weld heat affected zone is eliminated, the service life of the shear damper is prolonged, the overall buckling resistance and the overall bearing capacity of the damper are improved through the special-shaped energy consumption section and the two-end plane outer limiting mode, and the use demand of high bearing capacity dampers for medium-high-rise and large-span structures is met.

Description

Technical Field

[0001] This invention relates to the field of energy dissipation and vibration reduction technology in building structures, specifically to an irregularly shaped metal shear damper. Background Technology

[0002] Metal shear dampers are displacement-dependent energy dissipation and vibration reduction devices that utilize the plastic deformation of mild steel under shear forces to dissipate seismic energy. They are primarily used in engineering structures such as buildings and bridges for seismic resistance and vibration reduction. Metal shear dampers use low-yield-point steel (LYP steel) as the core energy-dissipating material, with a yield strength typically ranging from 100 MPa to 225 MPa. Under earthquake or strong wind conditions, when the main structure experiences inter-story displacement, the damper yields first, generating hysteretic energy dissipation through the in-plane shear yielding deformation of the mild steel web, thereby effectively reducing the structure's seismic response.

[0003] Traditional metal shear dampers use welding to fix the energy dissipation plate and connecting plate, which creates a heat-affected zone (HAZ) near the weld. In this area, steel grains tend to grow, leading to a deterioration in mechanical properties.

[0004] In existing technologies, the energy dissipation plates and connecting plates of traditional metal shear dampers are fixed by welding. Under long-term cyclic loads, the welds are prone to early cracking, which shortens the service life of the damper. In addition, traditional square or rectangular cross-section shear dampers are prone to overall buckling instability under conditions such as large displacement earthquakes. After buckling, the energy dissipation capacity will drop rapidly, making it difficult to meet the continuous energy dissipation requirements under large earthquakes. Moreover, most products have low load-bearing capacity, which is difficult to meet the vibration reduction requirements of mid-rise and high-rise and large-span structures. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an irregularly shaped metal shear damper. This solves the problem that in existing technologies, the energy dissipation plate and connecting plate of traditional metal shear dampers are fixed by welding. Under long-term cyclic loading, this easily leads to early weld cracking, shortening the damper's service life. Furthermore, traditional square or rectangular cross-section shear dampers are prone to overall buckling instability under conditions such as large-displacement earthquakes, resulting in a rapid decrease in energy dissipation capacity after buckling, making it difficult to meet the continuous energy dissipation requirements under large earthquakes. Moreover, most products have low load-bearing capacity, failing to meet the seismic reduction requirements of mid-rise and high-rise structures and large-span structures.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an irregularly shaped metal shear damper, comprising an upper connecting plate and a lower connecting plate disposed below the upper connecting plate; the irregularly shaped metal shear damper further comprises an energy dissipation component disposed on one side of the upper connecting plate and the lower connecting plate that are close to each other; a side constraint component is disposed on both sides of the energy dissipation component; wherein, the side constraint component employs multiple X-shaped side plates to laterally constrain the energy dissipation component on both sides, thereby achieving a weld-free assembly of the energy dissipation component between the upper connecting plate and the lower connecting plate.

[0007] Preferably, the energy dissipation component includes an energy dissipation plate body, which is disposed on the side of the upper connecting plate and the lower connecting plate that are close to each other; multiple shear energy dissipation webs are provided and fixedly connected to both sides of the outer wall of the energy dissipation plate body; stiffening ribs are fixedly connected to the outer wall of the energy dissipation plate body on the side of the two shear energy dissipation webs that are close to each other; end plates are fixedly connected to the ends of the shear energy dissipation webs that are close to each other, and are also fixedly connected to the energy dissipation plate body and the stiffening ribs; and arc-shaped grooves are provided on both sides of the outer wall of the energy dissipation plate body. The energy dissipation plate body is arranged vertically between the upper connecting plate and the lower connecting plate, and undergoes shear deformation under the action of upper and lower loads. It also deforms synchronously with the energy dissipation plate body through multiple shear energy dissipation webs and stiffening ribs to dissipate the seismic energy input into the structure. The arc-shaped grooves are used to avoid stress concentration.

[0008] Preferably, the side restraint assembly includes restraint side plates, multiple of which are symmetrically distributed on both sides of the energy-dissipating panel body and connected to the outer wall of the energy-dissipating panel body; trapezoidal grooves are provided on both sides of the outer wall of the restraint side plates; multiple deformation grooves are provided, equidistantly opened on both sides of the outer wall of the restraint side plates; energy-dissipating panel limiting structures are provided on both sides of the energy-dissipating panel body; and connecting structures are provided at both ends of the restraint side plates; wherein, the two sets of restraint side plates are fixed to the upper connecting plate and the lower connecting plate through the connecting structures, and the energy-dissipating panel body is laterally limited by the energy-dissipating panel body through the energy-dissipating panel limiting structure to prevent out-of-plane instability deformation of the energy-dissipating panel body, and the trapezoidal grooves and deformation grooves are used to jointly adjust the overall stiffness of the restraint side plates.

[0009] Preferably, the energy-consuming panel limiting structure includes a first limiting groove, which is formed at both ends of the outer wall of the constraint side plate; an extension wing plate is disposed on the upper and lower sides of the energy-consuming panel body, and is fitted with the inner wall of the first limiting groove with a gap; wherein, the extension wing plate is limited in the first limiting groove, and there is a certain gap between the two, so as to lock and limit the energy-consuming panel body between the two constraint side plates, thereby realizing the out-of-plane displacement constraint of the energy-consuming panel body.

[0010] Preferably, the connection structure includes multiple connecting blocks distributed on the side of two adjacent constraint side plates that are close to each other; a first fixing hole is located on the side of the upper and lower connecting plates that are far from each other, and is correspondingly located on the connecting block; a first fixing bolt is engaged with the inner wall of the first fixing hole and threadedly connected to the inner wall of the connecting block; a second fixing bolt passes through the inner wall of the constraint side plate and is threadedly connected to the inner wall of the connecting block; wherein, the connecting block is fixed to the constraint side plate by the second fixing bolt and connected to the upper and lower connecting plates by the first fixing bolt, thereby realizing the connection and fixation of the constraint side plate as a whole with the upper and lower connecting plates.

[0011] Preferably, a plurality of second limiting grooves are provided on the side of the upper connecting plate and the lower connecting plate that are close to each other, and the inner wall of the second limiting groove is connected to one end of the constraint side plate and the connecting block.

[0012] Preferably, a protective component is provided on the outer side of the energy dissipation panel body. The protective component includes an outer protective plate, of which two are provided and fitted onto the outside of the energy dissipation panel body. Multiple third fixing bolts are provided and distributed on both sides of the outer protective plate. A side plate limiting structure is provided on the inner wall of the outer protective plate. The two outer protective plates are fixed by the third fixing bolts and are engaged with the outer side of the restraining side plate by the side plate limiting structure, which plays a protective role for the internal energy dissipation component and prevents external impurities from entering the damper and affecting the normal shear deformation of the energy dissipation component.

[0013] Preferably, the side plate limiting structure includes a limiting transverse plate, which is fixedly connected to the inner wall of the outer protective plate and has a clearance fit with the energy dissipation plate body and the end plate; multiple third limiting grooves are provided, distributed at both ends of the outer wall of the limiting transverse plate, and have a clearance fit with the outer wall of the constraint side plate; multiple limiting blocks are provided, fixedly connected to the inner wall of the outer protective plate, and have a clearance fit with the shear energy dissipation web, stiffening rib and end plate; wherein, the limiting transverse plate is arranged with a gap between two adjacent end plates, and is limited by the position of the limiting blocks and the shear energy dissipation web, stiffening rib and end plate, and is further limited by engaging with the constraint side plate through the third limiting groove, while the outer protective plate itself is fixed in the accurate position.

[0014] Preferably, the outer walls of both the upper and lower connecting plates are provided with multiple second fixing holes, and the two ends of the sides of the upper and lower connecting plates that are far apart from each other are provided with strip grooves.

[0015] Beneficial effects

[0016] This invention provides an irregularly shaped metal shear damper. It offers the following advantages: Through the cooperation of the upper connecting plate, lower connecting plate, energy dissipation component, and side restraint component, the energy dissipation plate is laterally restrained on both sides. Mechanical connections replace traditional welding methods to fix the energy dissipation plate to the upper and lower connecting plates, eliminating the degradation of the steel's mechanical properties by the heat-affected zone of the weld. This prevents early weld cracking under long-term cyclic loads, effectively extending the service life of the shear damper. Simultaneously, the irregularly shaped energy dissipation section and out-of-plane limiting at both ends enhance the damper's overall buckling resistance and overall load-bearing capacity, preventing overall buckling instability under large displacements and ensuring stable energy dissipation capacity after a major earthquake. This meets the requirements of mid-to-high-rise and large-span structures for high-load-bearing dampers.

[0017] Through the cooperation of the upper connecting plate, lower connecting plate, energy dissipation plate body, restraint side plate, outer protective plate, and side plate limiting structure, a complete and enclosed protective shell is formed on the outside of the energy dissipation plate body and restraint side plate. This prevents rainwater, dust, and debris from the construction process from contacting the energy dissipation plate body and restraint side plate, preventing rust or debris from affecting the normal shear deformation of the energy dissipation plate. This effectively ensures the working environment of the internal components of the damper. By further restraining the relative positions of the internal components, the normal shear deformation of the energy dissipation plate is not restricted, and relative misalignment of the components under long-term reciprocating loads is avoided. This ensures the integrity and working stability of the entire damper structure, jointly guaranteeing the long-term stable energy dissipation effect of the damper. This further improves the long-term reliability of this irregular metal shear damper and better adapts to the long-term energy dissipation and vibration reduction needs of various building structures. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the appearance of the present invention;

[0020] Figure 3 This is a schematic diagram showing the external appearance of the energy-consuming board body, the constraint side plate, and the connecting block in this invention;

[0021] Figure 4 This is a cross-sectional view of the outer protective plate, the limiting horizontal plate, and the limiting block in this invention;

[0022] Figure 5 This is a schematic diagram showing the external appearance of the energy-consuming panel body, the arc groove, and the extended wing plate in this invention;

[0023] Figure 6 This is a schematic diagram of the external appearance of the constraint side plate, connecting block and first limiting groove in this invention;

[0024] Figure 7 This is a schematic diagram of the lower connecting plate, the first fixing hole, and the second limiting groove in this invention.

[0025] In the diagram: 1. Upper connecting plate; 2. Lower connecting plate; 3. Energy dissipation component; 4. Side restraint component; 5. Protective component; 6. Second fixing hole; 7. Strip groove; 31. Energy dissipation plate body; 32. Shear energy dissipation web plate; 33. Stiffening rib; 34. End plate; 35. Arc groove; 41. Restraint side plate; 42. Side trapezoidal groove; 43. Deformation groove; 44. Energy dissipation plate limiting structure; 45. Connecting structure; 441. First limiting groove; 442. Extended wing plate; 451. Connecting block; 452. First fixing hole; 453. First fixing bolt; 454. Second fixing bolt; 455. Second limiting groove; 51. Outer protective plate; 52. Third fixing bolt; 53. Side plate limiting structure; 531. Limiting transverse plate; 532. Third limiting groove; 533. Limiting block. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In existing technologies, the energy dissipation plates and connecting plates of traditional metal shear dampers are fixed by welding. Under long-term cyclic loads, the welds are prone to early cracking, which shortens the service life of the damper. In addition, traditional square or rectangular cross-section shear dampers are prone to overall buckling instability under conditions such as large displacement earthquakes. After buckling, the energy dissipation capacity will drop rapidly, making it difficult to meet the continuous energy dissipation requirements under large earthquakes. Moreover, most products have low load-bearing capacity, which is difficult to meet the vibration reduction requirements of mid-rise and high-rise and large-span structures.

[0028] In view of this, the present invention provides an irregularly shaped metal shear damper. Through the cooperation between the upper connecting plate, the lower connecting plate, the energy dissipation component, and the side restraint component, and by lateral restraint on both sides of the energy dissipation plate, the energy dissipation plate is fixed to the upper and lower connecting plates by mechanical connection instead of traditional welding method. This eliminates the deterioration of the mechanical properties of the steel by the heat-affected zone of the weld, avoids early weld cracking of the shear damper under long-term cyclic load, and effectively extends the service life of the shear damper. At the same time, the irregularly shaped energy dissipation section and the out-of-plane limiting method at both ends improve the overall buckling resistance and overall load-bearing capacity of the damper, avoids overall buckling instability under large displacement, and ensures that the damper still has stable energy dissipation capacity after a major earthquake. Thus, it meets the use requirements of high load-bearing capacity dampers for mid-to-high-rise and large-span structures.

[0029] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0030] Depend on Figure 1-7 It is known that an irregularly shaped metal shear damper includes an upper connecting plate 1, a lower connecting plate 2 is disposed below the upper connecting plate 1, and the irregularly shaped metal shear damper also includes an energy dissipation component 3 and a side constraint component 4. The energy dissipation component 3 is disposed on the side where the upper connecting plate 1 and the lower connecting plate 2 are close to each other; the side constraint component 4 is disposed on both sides of the energy dissipation component 3; wherein, the side constraint component 4 adopts multiple X-shaped side plates to laterally constrain the energy dissipation component 3 on both sides, so as to realize the weldless assembly of the energy dissipation component 3 between the upper connecting plate 1 and the lower connecting plate 2.

[0031] In the specific implementation process, it is worth noting that the upper connecting plate 1 and the lower connecting plate 2 are connected to the upper and lower layer components of the building structure by bolts, respectively. The inter-story displacement is transmitted through the upper connecting plate 1 and the lower connecting plate 2, which drives the energy dissipation plate of the energy dissipation component 3 to undergo shear plastic deformation, thereby dissipating the seismic energy. Through the cooperation between the upper connecting plate 1, the lower connecting plate 2, the energy dissipation component 3 and the side restraint component 4, the energy dissipation plate is fixed to the upper connecting plate 1 and the lower connecting plate 2 by lateral restraint on both sides of the energy dissipation plate. The mechanical connection is used instead of the traditional welding method to fix the energy dissipation plate to the upper connecting plate 1 and the lower connecting plate 2, eliminating the deterioration of the mechanical properties of the steel by the heat-affected zone of the weld, avoiding early cracking of the weld under long-term cyclic load, and effectively extending the service life of the shear damper. At the same time, the use of irregular energy dissipation cross section and out-of-plane limiting at both ends improves the overall buckling resistance and overall bearing capacity of the damper, avoids overall buckling instability under large displacement, and ensures that the damper still has stable energy dissipation capacity after a major earthquake, meeting the needs of high bearing capacity dampers for mid-to-high-rise and large-span structures.

[0032] Furthermore, the energy-dissipating component 3 includes an energy-dissipating plate body 31, shear energy-dissipating webs 32, stiffening ribs 33, end plates 34, and arc-shaped grooves 35. The energy-dissipating plate body 31 is disposed on the side where the upper connecting plate 1 and the lower connecting plate 2 are close to each other. Multiple shear energy-dissipating webs 32 are provided and fixedly connected to both sides of the outer wall of the energy-dissipating plate body 31. The stiffening ribs 33 are fixedly connected to the outer wall of the energy-dissipating plate body 31 and located on the side where two shear energy-dissipating webs 32 are close to each other. The end plates 34 are fixedly connected to the shear energy-dissipating webs 35. The web plates 32 are close to each other at one end and are fixedly connected to the energy dissipation plate body 31 and the stiffening ribs 33; the arc-shaped grooves 35 are provided on both sides of the outer wall of the energy dissipation plate body 31; wherein, the energy dissipation plate body 31 is arranged vertically between the upper connecting plate 1 and the lower connecting plate 2, and undergoes shear deformation under the action of upper and lower loads, and dissipates the seismic energy input to the structure by means of multiple shear energy dissipation web plates 32 and stiffening ribs 33 deforming synchronously with the energy dissipation plate body 31; the arc-shaped grooves 35 are used to avoid the occurrence of stress concentration phenomenon;

[0033] In the specific implementation process, it is worth noting that the energy dissipation core of the metal shear damper is formed by the cooperation between the energy dissipation plate body 31, shear energy dissipation web 32, stiffening ribs 33, end plates 34 and arc grooves 35. The energy dissipation plate body 31 is made of low yield point steel, which can dissipate energy in the plastic stage under small displacement. By opening arc grooves 35 on both sides of the energy dissipation plate body 31, an irregular energy dissipation section is formed, which effectively improves the stress distribution state in the plastic stage. Furthermore, by welding and fixing the shear energy dissipation web 32, stiffening ribs 33 and end plates 34 on both sides of the energy dissipation plate body 31, the out-of-plane stiffness and ultimate bearing capacity of the energy dissipation plate body 31 in the reciprocating shear deformation process are improved. The stiffness of the end of the energy dissipation plate body 31 gradually transitions, avoiding stress concentration caused by sudden stiffness changes. As a result, plastic deformation develops preferentially in the core area in the middle of the energy dissipation plate body 31, rather than concentrated in the weak connection parts, realizing the graded yield mode and improving the reliability and stability of the damper.

[0034] Furthermore, the side constraint assembly 4 includes constraint side plates 41, side trapezoidal grooves 42, deformation grooves 43, energy dissipation plate limiting structure 44, and connecting structure 45. Multiple constraint side plates 41 are provided, symmetrically distributed on both sides of the energy dissipation plate body 31, and are connected to the outer wall of the energy dissipation plate body 31. The side trapezoidal grooves 42 are provided on both sides of the outer wall of the constraint side plates 41. Multiple deformation grooves 43 are provided, equidistantly opened on both sides of the outer wall of the constraint side plates 41. The energy dissipation plate limiting structure 44 is provided on both sides of the energy dissipation plate body 31. The connecting structure 45 is provided at both ends of the constraint side plates 41. The two sets of constraint side plates 41 are fixed to the upper connecting plate 1 and the lower connecting plate 2 through the connecting structure 45, and the energy dissipation plate limiting structure 44 provides lateral limiting to the energy dissipation plate body 31, restricting the out-of-plane instability deformation of the energy dissipation plate body 31. The side trapezoidal grooves 42 and deformation grooves 43 are used to jointly adjust the overall stiffness of the constraint side plates 41.

[0035] In the specific implementation process, it is worth noting that the constraint side plate 41 has a symmetrical X-shaped structure. It is fixed to the upper connecting plate 1 and the lower connecting plate 2 through the connecting structure 45, and forms a stable lateral constraint at both ends of the energy dissipation plate body 31 through the energy dissipation plate limiting structure 44. This allows the constraint side plate 41 to provide sufficient out-of-plane support stiffness for the energy dissipation plate body 31. The overall stiffness of the constraint side plate 41 is adjusted through the side trapezoidal groove 42 and deformation groove 43, so that the stiffness of the constraint side plate 41 is lower near the deformation core area of ​​the energy dissipation plate body 31, avoiding excessive constraint on the shear deformation of the energy dissipation plate body 31. The depth of the side trapezoidal groove 42 and the number of deformation grooves 43 can be adjusted according to the actual engineering needs. While ensuring sufficient lateral constraint on the energy dissipation plate body 31, it avoids excessive stiffness matching from affecting the normal plastic deformation development of the energy dissipation plate. This allows the constraint side plate 41 to both limit the overall buckling of the energy dissipation plate and not interfere with the shear energy dissipation process of the energy dissipation plate itself.

[0036] Furthermore, the energy-consuming panel limiting structure 44 includes a first limiting groove 441 and an extension wing plate 442. The first limiting groove 441 is formed at both ends of the outer wall of the constraint side plate 41. The extension wing plate 442 is disposed on the upper and lower sides of the energy-consuming panel body 31 and is fitted with the inner wall of the first limiting groove 441 with a gap. The extension wing plate 442 is limited in the first limiting groove 441 and there is a certain gap between the two, which engages and limits the energy-consuming panel body 31 between the two constraint side plates 41, thereby realizing the out-of-plane displacement constraint of the energy-consuming panel body 31.

[0037] In the specific implementation process, it is worth noting that the extended wing plates 442 located on both sides of the energy dissipation plate body 31 form a limit in the first limiting groove 441, so that the energy dissipation plate body 31 is restricted from out-of-plane displacement between the two sets of constraint side plates 41. Furthermore, there is a certain gap between the first limiting groove 441 and the extended wing plate 442, which ensures the limitation of the extended wing plate 422 and does not constrain the in-plane shear deformation of the energy dissipation plate body 31 within a certain range. It only provides lateral support force when the energy dissipation plate body 31 has an out-of-plane buckling tendency. Thus, without affecting the normal shear deformation of the energy dissipation plate, it effectively suppresses the out-of-plane buckling of the energy dissipation plate body 31 and ensures that the energy dissipation plate is stable in the plane to complete plastic energy dissipation.

[0038] Furthermore, the connection structure 45 includes a connecting block 451, a first fixing hole 452, a first fixing bolt 453, and a second fixing bolt 454. Multiple connecting blocks 451 are provided, distributed on the side of two adjacent constraint side plates 41 that are close to each other. The first fixing hole 452 is provided on the side of the upper connecting plate 1 and the lower connecting plate 2 that are far apart from each other, and is correspondingly provided on the connecting block 451. The first fixing bolt 453 is engaged with the inner wall of the first fixing hole 452 and threadedly connected to the inner wall of the connecting block 451. The second fixing bolt 454 penetrates the inner wall of the constraint side plate 41 and is threadedly connected to the inner wall of the connecting block 451. The connecting block 451 is fixed to the constraint side plate 41 by the second fixing bolt 454, and connected to the upper connecting plate 1 and the lower connecting plate 2 by the first fixing bolt 453, thus achieving the overall connection and fixation of the constraint side plate 41 with the upper connecting plate 1 and the lower connecting plate 2.

[0039] In the specific implementation process, it is worth noting that, through the cooperation between the upper connecting plate 1, the lower connecting plate 2, the constraint side plate 41, the connecting block 451, the first fixing hole 452, the first fixing bolt 453 and the second fixing bolt 454, two adjacent constraint side plates 41 and multiple connecting blocks 451 are spliced ​​together to form a complete lateral constraint unit. The constraint side plate 41 and the connecting block 451 are fixed by the second fixing bolt 454, and then the connecting block 451 is connected and fixed to the upper connecting plate 1 and the lower connecting plate 2 by the first fixing bolt 453. The constraint side plate 41 and the connecting block 451 are fixed to the upper connecting plate 1 and the lower connecting plate 2 by mechanical connection assembly method to keep the position of the constraint side plate 41 stable.

[0040] Furthermore, multiple second limiting grooves 455 are provided on the side of the upper connecting plate 1 and the lower connecting plate 2 that are close to each other. The inner wall of the second limiting groove 455 is connected to one end of the constraint side plate 41 and the connecting block 451.

[0041] In the specific implementation process, it is worth noting that the second limiting groove 455 is used to position the two ends of the lateral constraint unit composed of the constraint side plate 41 and the connecting block 451, improve the alignment accuracy when the constraint side plate 41 is connected to the upper connecting plate 1 and the lower connecting plate 2, reduce the shear stress of the first fixing bolt 453 under the seismic reciprocating action, improve the fatigue resistance of the connection part, and further enhance the connection stability between the constraint side plate 41 and the upper connecting plate 1 and the lower connecting plate 2.

[0042] Furthermore, a protective component 5 is provided on the outer side of the energy dissipation panel body 31. The protective component 5 includes an outer protective plate 51, a third fixing bolt 52, and a side plate limiting structure 53. There are two outer protective plates 51, which are sleeved on the outside of the energy dissipation panel body 31. There are multiple third fixing bolts 52, which are distributed on both sides of the outer protective plate 51. The side plate limiting structure 53 is provided on the inner wall of the outer protective plate 51. The two outer protective plates 51 are fixed by the third fixing bolt 52 and are engaged with the side plate limiting structure 53 on the outside of the restraining side plate 41, which plays a protective role for the internal energy dissipation component 3 and prevents external impurities from entering the damper and affecting the normal shear deformation of the energy dissipation component 3.

[0043] In the specific implementation process, it is worth noting that the two outer protective plates 51 are made of stainless steel thin plates and are fixed by the third fixing bolt 52, forming a complete and closed protective shell outside the energy dissipation plate body 31 and the restraint side plate 41. This can prevent rainwater, dust and debris from the construction process from contacting the energy dissipation plate body 31 and the restraint side plate 41, prevent rust or debris from getting stuck and affecting the normal shear deformation of the energy dissipation plate, effectively ensure the working environment of the internal components of the damper, and extend the service life of the damper. At the same time, the restraint side plate 41 is further positioned and limited by the side plate limiting structure 53 to prevent the restraint side plate 41 from shifting position during long-term use, further improving the overall structural integrity of the damper and ensuring the stable performance of the lateral restraint effect.

[0044] Furthermore, the side plate limiting structure 53 includes a limiting horizontal plate 531, a third limiting groove 532, and a limiting block 533. The limiting horizontal plate 531 is fixedly connected to the inner wall of the outer protective plate 51 and is clearance-fitted to the energy dissipation plate body 31 and the end plate 34. Multiple third limiting grooves 532 are provided, distributed at both ends of the outer wall of the limiting horizontal plate 531, and are clearance-fitted to the outer wall of the constraint side plate 41. Multiple limiting blocks 533 are provided, fixedly connected to the inner wall of the outer protective plate 51, and are clearance-fitted to the shear energy dissipation web 32, stiffening rib 33, and end plate 34. The limiting horizontal plate 531 is spaced between two adjacent end plates 34 and is limited by the position of the limiting block 533 with the shear energy dissipation web 32, stiffening rib 33, and end plate 34. It also engages with the constraint side plate 41 through the third limiting groove 532 to further limit the constraint side plate 41, while the outer protective plate 51 itself is fixed in the accurate position.

[0045] In the specific implementation process, it is worth noting that after the outer protective plate 51 is installed and fixed, the constraint side plate 41 is inserted into the third limiting groove 532 located at both ends of the limiting horizontal plate 531, and the limiting horizontal plate 531 is inserted into the gap between two adjacent end plates 34. At the same time, the limiting block 533 forms a position limit with the shear energy dissipation web 32, stiffening rib 33 and end plate 34, which further constrains the relative position of each internal component. This will not restrict the normal shear deformation of the energy dissipation plate, and will also prevent the relative misalignment of each component under long-term reciprocating load, thus ensuring the integrity and working stability of the entire damper structure. At the same time, it forms a closed protection on the outside, isolating the influence of external factors on the performance of internal components. The dual effect together ensures the long-term stable energy dissipation effect of the damper.

[0046] Furthermore, the outer walls of the upper connecting plate 1 and the lower connecting plate 2 are provided with multiple second fixing holes 6, and the two ends of the side of the upper connecting plate 1 and the lower connecting plate 2 that are far apart from each other are provided with strip grooves 7.

[0047] In the specific implementation process, it is worth noting that the second fixing hole 6 is used for the connecting bolts to pass through when the upper connecting plate 1 and the lower connecting plate 2 are connected to the building structural components, so as to realize the rapid assembly of the damper and the main structure. The strip groove 7 is used to release the additional stress of installation and ensure the stability of the mechanical performance of the damper.

[0048] The working principle of this application is illustrated below with a preferred embodiment: After the irregular metal shear damper is connected to the building structure, when no earthquake or structural vibration occurs, the main body 31 of the energy dissipation plate is in an elastic state and will not undergo plastic deformation. It has minimal impact on the stiffness of the structure and will not change the original dynamic characteristics of the structure.

[0049] When a small vibration occurs, the structure produces a small inter-story displacement. The main body of the energy dissipation plate 31 enters the plastic state first and dissipates the energy input to the structure by shear plastic deformation. At this time, under the combined action of the shear energy dissipation web 32, stiffening ribs 33 and arc grooves 35, the stress is evenly distributed in the central core area of ​​the main body of the energy dissipation plate 31. Furthermore, since there is a small gap between the first limiting groove 441 and the extended wing plate 442, it will not affect the in-plane shear deformation of the main body of the energy dissipation plate 31. It only provides support when the main body of the energy dissipation plate 31 shows an out-of-plane buckling tendency, ensuring that the energy dissipation plate always dissipates energy stably in the plane.

[0050] When a strong earthquake occurs, the building structure experiences inter-story displacement, which is transmitted to the energy dissipation component 3 through the upper connecting plate 1 and the lower connecting plate 2. The main body 31 of the energy dissipation plate undergoes shear deformation, which drives the shear energy dissipation web 32 and stiffening ribs 33 to undergo shear plastic deformation simultaneously to dissipate earthquake energy. The stress in the main body 31 of the energy dissipation plate gradually develops from the middle area to both ends, achieving graded yielding. At the same time, the restraint side plates 41 on both sides continuously provide out-of-plane support for the main body 31 of the energy dissipation plate, preventing the energy dissipation plate from buckling and becoming unstable. Furthermore, the restraint side plates 41 adjust their own stiffness through the side trapezoidal grooves 42 and deformation grooves 43, avoiding excessive restraint on the shear deformation of the energy dissipation plate and ensuring that the energy dissipation plate can freely undergo plastic deformation to fully dissipate energy.

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A non-circular metal shear damper, comprising an upper connecting plate (1), characterized in that: A lower connecting plate (2) is provided below the upper connecting plate (1), and the irregular metal shear damper further includes: The energy-consuming component (3) is located on the side of the upper connecting plate (1) and the lower connecting plate (2) that are close to each other; Side constraint components (4) are disposed on both sides of the energy dissipation component (3); The side constraint component (4) uses multiple X-shaped side plates to laterally constrain the energy-consuming component (3) on both sides, thereby achieving a weld-free assembly of the energy-consuming component (3) between the upper connecting plate (1) and the lower connecting plate (2).

2. The irregularly shaped metal shear damper according to claim 1, characterized in that: The energy-consuming component (3) includes: The main body of the energy-consuming panel (31) is located on the side where the upper connecting plate (1) and the lower connecting plate (2) are close to each other; Multiple shear energy-dissipating web plates (32) are provided and fixedly connected to both sides of the outer wall of the energy-dissipating plate body (31); The stiffening rib (33) is fixedly connected to the outer wall of the energy dissipation plate body (31) and located on the side where the two shear energy dissipation webs (32) are close to each other; End plate (34) is fixedly connected to one end of the shear energy dissipation web (32) that is close to each other, and is also fixedly connected to the energy dissipation plate body (31) and the stiffening rib (33). Arc-shaped grooves (35) are provided on both sides of the outer wall of the energy-consuming panel body (31); The energy dissipation plate body (31) is arranged vertically between the upper connecting plate (1) and the lower connecting plate (2). Under the action of the upper and lower loads, it undergoes shear deformation and, through multiple shear energy dissipation webs (32) and stiffening ribs (33), it deforms synchronously with the energy dissipation plate body (31) to dissipate the seismic energy input to the structure. The arc groove (35) is used to avoid the occurrence of stress concentration.

3. The irregularly shaped metal shear damper according to claim 2, characterized in that: The side constraint component (4) includes: Multiple constraint side plates (41) are provided, symmetrically distributed on both sides of the energy dissipation panel body (31), and are connected to the outer wall of the energy dissipation panel body (31). Side trapezoidal grooves (42) are provided on both sides of the outer wall of the constraint side plate (41); Multiple deformation grooves (43) are provided and are equally spaced on both sides of the outer wall of the constraint side plate (41); Energy-consuming panel limiting structure (44) is provided on both sides of the energy-consuming panel body (31); A connecting structure (45) is provided at both ends of the constraint side plate (41); Among them, the two sets of constraint side plates (41) are fixed to the upper connecting plate (1) and the lower connecting plate (2) through the connecting structure (45), and the energy dissipation plate limiting structure (44) is used to laterally limit the energy dissipation plate body (31) to prevent the energy dissipation plate body (31) from undergoing out-of-plane instability deformation. The side trapezoidal groove (42) and deformation groove (43) are used to jointly adjust the overall stiffness of the constraint side plate (41).

4. The irregularly shaped metal shear damper according to claim 3, characterized in that: The energy dissipation plate limiting structure (44) includes: The first limiting groove (441) is opened at both ends of the outer wall of the constraint side plate (41); Extended wing plates (442) are disposed on the upper and lower sides of the energy dissipation plate body (31) and are fitted with the inner wall of the first limiting groove (441) with a gap. The extended wing plate (442) is limited in the first limiting groove (441), and there is a certain gap between the two, which locks the energy dissipation plate body (31) between the two constraint side plates (41) to achieve out-of-plane displacement constraint on the energy dissipation plate body (31).

5. The irregularly shaped metal shear damper according to claim 3, characterized in that: The connection structure (45) includes: Multiple connecting blocks (451) are provided and distributed on the side of two adjacent constraint side plates (41) that are close to each other; The first fixing hole (452) is located on the side of the upper connecting plate (1) and the lower connecting plate (2) that are far apart from each other, and is correspondingly located on the connecting block (451). The first fixing bolt (453) is fitted to the inner wall of the first fixing hole (452) and threaded to the inner wall of the connecting block (451); The second fixing bolt (454) passes through the inner wall of the constraint side plate (41) and is threaded to the inner wall of the connecting block (451); The connecting block (451) is fixed to the constraint side plate (41) by the second fixing bolt (454) and connected to the upper connecting plate (1) and the lower connecting plate (2) by the first fixing bolt (453), so as to realize the connection and fixation of the constraint side plate (41) to the upper connecting plate (1) and the lower connecting plate (2).

6. The irregularly shaped metal shear damper according to claim 5, characterized in that: The upper connecting plate (1) and the lower connecting plate (2) are provided with a plurality of second limiting grooves (455) on the side close to each other. The inner wall of the second limiting groove (455) is connected to one end of the constraint side plate (41) and the connecting block (451).

7. The irregularly shaped metal shear damper according to claim 2, characterized in that: A protective component (5) is provided on the outer side of the energy dissipation panel body (31), the protective component (5) including: There are two outer protective panels (51), which are fitted onto the outside of the main body (31) of the energy dissipation panel; The third fixing bolt (52) is provided in multiple quantities and is distributed on both sides of the outer protective plate (51); A side panel limiting structure (53) is provided on the inner wall of the outer protective plate (51); The two outer protective plates (51) are fixed by the third fixing bolt (52) and are engaged with the outside of the constraint side plate (41) by the side plate limiting structure (53), which plays a protective role for the internal energy dissipation component (3) and prevents external impurities from entering the damper and affecting the normal shear deformation of the energy dissipation component (3).

8. The irregularly shaped metal shear damper according to claim 7, characterized in that: The side plate limiting structure (53) includes: The limiting horizontal plate (531) is fixedly connected to the inner wall of the outer protective plate (51) and is clearance-fitted to the energy dissipation plate body (31) and the end plate (34). The third limiting groove (532) is provided in multiple ways, distributed at both ends of the outer wall of the limiting horizontal plate (531), and is fitted with the outer wall of the constraint side plate (41) with a clearance fit. Multiple limit blocks (533) are provided and are fixedly connected to the inner wall of the outer protective plate (51), and are clearance-fitted to the shear energy dissipation web (32), stiffening rib (33) and end plate (34). The limiting plate (531) is arranged with a gap between two adjacent end plates (34), and is limited by the position of the limiting block (533) and the shear energy dissipation web (32), stiffening rib (33) and end plate (34), and is further limited by engaging with the constraint side plate (41) through the third limiting groove (532), while the outer protective plate (51) itself is fixed in the accurate position.

9. The irregularly shaped metal shear damper according to claim 1, characterized in that: The outer walls of the upper connecting plate (1) and the lower connecting plate (2) are provided with multiple second fixing holes (6), and the two ends of the upper connecting plate (1) and the lower connecting plate (2) on the side away from each other are provided with strip grooves (7).

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